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HomeMy WebLinkAboutPRE-BUILDING PERMIT ADDENDUM-THRESOLD-2-04 WE MATHERS ENGINEERING CORPORATION SCANNED BY St. Lucie County PRE -BUILDING PERMIT ADDENDUM — THRESHOLD Date: March 20, 2019 To: St. Lucie County Building Department 2300 Virginia Avenue Fort Pierce, FL 34982 2431 SE Dixie Highway Stuart, FL 34996 Phone: (772) 287-0525 EB#004456 Referenced Project: Concrete Restoration for Exterior Balconies for on 12 Floors Of Stack A (Units Al, A2, A3, A4, A5, A6, A7, A8, A9, A10, All, Al2) for the Atrium II Condominium Located at 3000 N. Highway AIA, Fort Pierce, Florida 34949 Contractor: Structure -Con, PO Box 2626, Okeechobee, FL 34973 Atrium II Condominium Association requested the services of Mathers Engineering Corporation for special inspection services for concrete renovation work on the above -referenced building. William J. Mathers, P.E., S.I. #155, will certify all structural inspections. Under Florida Statute 553.79(5)(d), "the licensed registered engineer service as the special inspector shall be permitted to send his duly authorized representative to the job site to perform the necessary inspections provided al written reports are prepared by and bear the seal of the special inspector and are submitted to the enforcement agency." In addition to William J. Mathers, individuals employed by Mathers Engineering Corporation are authorized and qualified representatives to perform inspections to perform the duties assigned by the Special Inspector. We will follow the threshold inspection plan prepared by the Engineer of Record, Keystone Structural Engineering and Consulting, for this project in performing our inspections. Inspections for concrete restoration projects follow the general pattern of pre -demolition inspection, progress inspections until area to be restored has been properly prepared (steel coatings, steel additions and catholic protection) prior to concrete replacement. Reports of work progress will be generated on a monthly basis, signed and sealed by the professional engineer, and sent to the St. Lucie County Building Department. Enclosed is a copy of the structural threshold license for William J. Mathers, P.E. as the threshold inspector for the project referenc ve in accordance with Florida Statutes 553.79. ��M J MpAT /Z Approved, \���p \cENSF tit�,P�i� PE 19658 0/31C STATE OF ��Z\ William J. athers, PE ��i .c'•;�COR10P'•'����� Florida License #196 8 ��SS�ONA1 Special Inspector FL License%YLLh�� ■.m■ ■. ■ ON N • �. . ■ N■■ NNn■N N■ N O ■ � NN NNN■ ■ ■ ■ N .. .■■EN ■ .N. n e ® e O o ■ •O OOMMMMMCM■ CCCCC: =•'n•Q'� �CCCCC.Emull CCCCCC :C :ME N . MEMSESSEEME.C:.. ■■ �g,N,u �.■CCq U.■. 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Pierce, FL 34949 OWNER: The Atrium on the Ocean 11 Condominium Association, Inc. 3000 N. Highway A1A Ft. Pierce, FL 34949, PROPERTY MANAGER: Pearl Spires, LCAM First Service Residential 3055 Cardinal Drive Suite 200 Vero Beach, FL 32963 Tel (772) 562-9031 Email: pearl.spires@fsresidential.com PROJECT ENGINEER: James E. Emory, P.E. Keystone Engineering, Inc. 18 Danube River Drive Cocoa Beach, FL 32931 Tel: (321)480-5840 Email: lem ory(ocfl.rr.com Office Email: KeystoneEngineering@cfl.rr.com KEYSTONE ENGINEERING 2 Atrium II A Stack Balcony Restoration and Refurbishment Project TABLE OF CONTENTS COVER PROJECT DIRECTORY TABLE OF CONTENTS SECTION BIDDING AND CONTRACT DOCUMENTS 010 Invitation to Bid 020 Instruction to Bidders 030 Bid Form 040 General Conditions SECTION GENERAL PROJECT REQUIREMENTS i 100 Project Description 101 Summary of Work 102 Provisions for Insurance 103 Payment and Progress Schedule 104 Job Site Conditions and Requirements 105 Contractor Responsibility 106 Owner Responsibility 107 Safety and Public Convenience - 108 Product Delivery, Storage and Handling 109 Submittals and Materials Approval 110 Repair of Spalled Concrete j 111 ICRI Technical Guidelines 112 Inspection Map Results -Damage locations I� KEYSTONE ENGINEERING 3 Atrium II A Stack Balcony Restoration and Refurbishment Project Section 010 - INVITATION TO BID Invitation to Bid: Notice is hereby given that the Atrium II Condominium will accept bids for the A Stack Balcony Restoration and Refurbishment of their property located at 3000 N. Highway At A, Ft. Pierce, FL 34949, as described in the Project Manual. Bid is by invitation only from pre - qualified selected Contractors. The bid process is completed. To obtain a project manual, contact Keystone Engineering at (321) 454-7300. Bid documents will be sent in advance. Should a Bidder find discrepancies or ambiguities in, or If, in the opinion of the Project Engineer the question raised is of general interest or has the possibility of impacting the submission of the proposals by others, an interpretation will be issued in the form of an Addendum. Addenda, so issued, will be forwarded to all prospective bidders listed on the official bidders list maintained by the Project Engineer. All Bidders shall acknowledge the receipt of each Addendum on his/her proposal in the space provided. it KEYSTONE ENGINEERING 4 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 020 — INSTRUCTIONS TO BIDDERS GENERAL To be entitled to consideration, proposals shall be made in accordance with the following instructions: EXAMINATION OF THE SITE AND DOCUMENTS Before submitting a proposal, the bidder shall: 1. Carefully examine the drawings and specifications as applicable. 2. Visit the site of the work and fully inform himself of existing conditions and limitations. 3. Rely entirely upon his own judgment in preparing his proposal, and include in his bid a sum sufficient to cover all items required by the Contract. 4. Contractor is to verify any supplied bid quantities. Any variance in measurable quantities found, are to be brought to the attention of the Engineer prior to submission of bids. Change orders will not be considered for any variances in measurable quantities after the submissions of bids. INTERPRETATIONS A. Questions regarding drawings and specifications should be addressed to the Project Engineer and will be answered by addenda addressed to all Bidders. Question may be called in or faxed to Project Engineer (321) 459-2888. B. Neither Owner nor Consultant will be responsible for oral interpretations. C. Questions received less than 72 hours before the time set for Bid opening cannot be answered. D. All Addenda issued during the bidding period will be incorporated into the Contract. FORM OF BID (USE ENCLOSED BID SHEETS) A. Submit Bid in form furnished by Project Engineer without alterations in the form, or any recapitulation of the work to be done. B. Fill in all blank spaces in the form: sign in longhand. C. If Bidder is a partnership or co -partnership, each partner must sign; if a corporation, print name of state in which incorporated, followed by the signature or signatures of the person or persons authorized to sign, and the names of the offices they hold in the corporation. ORAL AND TELEPHONE BIDS Oral and telephone bids, or modification of bids, cannot be considered. OWNER'S RIGHT The Owner reserves the right to accept or reject any or all bids or any portion of bids on this project for whatever reason and without explanation. Contractors may be requested to participate in an interview with the Owners and Project Engineer following an evaluation of the bids. Owner may choose to complete project in phases or eliminate certain phases for this bid. SUBSTITUTIONS A. Bids shall be based upon the articles and materials named in the specifications. B. Substitutions may be made with the bid under the following conditions: 1. Bidders may submit, on a separate sheet enclosed with the Bid Form, a list of proposed substitutions which they are willing to guarantee, and stating the additions to or deductions from the Bid prices in case they are allowed. 2. Technical data shall be submitted, as above. 3. The Owner reserves the right to reject all such proposals, and they will not be used to determine the low bid. KEYSTONE ENGINEERING 5 ' Atrium II A Stack Balcony Restoration and Refurbishment Project ALTERNATE BIDS A. Except as stated above, alternate bids other than those listed in the bid form cannot be considered. B. Failure to bid upon all items listed in the Bid Form may cause rejection of the Bid. SUBMISSION OF BID A. Enclose two copies of your Bid in a sealed envelope addressed to: Pearl Spires, LCAM First Service Residential 3055 Cardinal Drive Suite 200 Vero Beach, FL 32963 Tel: (772) 562-9031 Email: pearl.spires(fsresidential.com RE: A Stack Balcony Restoration and Refurbishment Project KEYSTONE ENGINEERING 6 Atrium II A Stack Balcony Restoration and Refurbishment Project Bid Sheet —Page 1 of 4 Section 030- BID FORM: Submit Bid to: Pearl Spires, LCAM First Service Residential 3055 Cardinal Drive Suite 200 Vero Beach, FL 32963 Tel: (772) 562-9031 Email: pearl.spires@fsresidential.com RE: A Stack Balcony Restoration and Refurbishment Project Submitted by: Company Name Date: The undersigned A. Acknowledges receipt of: 1. Project Manual for the Atrium II A Stack Balcony Refurbishment and Restoration 2. Addenda numbers B. Has examined the Project site and Bidding documents C. Agrees: 1. To hold the Bid open for Sixty (60) calendar days after the bid due date. 2. To execute a satisfactory contract with the owner and to submit required insurance certificates to owner within seven (7) days after notice of award. 3. Provide a five-year non -prorated warranty, unless otherwise specified, for all labor and materials incorporated into the project. 4. Removal and reinstallation of the shutters, if needed, will be the responsibility of the Association or Unit Owner. KEYSTONE ENGINEERING 7 Atrium II A Stack Balcony Restoration and Refurbishment Project Bid Sheet — Page 2 of 4 J Submitted by: Company Name D. Contractor proposes to accomplish the work in accordance with the contract documents, best industry practices and following Florida building codes. The Base bid represents a stipulated sum for all costs of work total including: management, supervision, overhead, labor, materials, insurance, equipment, tools, permits, transportation and any individual costs incurred. Variable quantity bid items will be adjusted for actual volume of work competed, up or down, by the unit cost bid. See Bid Form Next Page KEYSTONE ENGINEERING -I 8 Atrium II A Stack Balcony Restoration and Refurbishment Project Bid Sheet- Page 3 of 4 Submitted by: Company A B C D I E F e Atrium IIkBid_Sheet aa A STACK Balcom4s S,upplementalj,Wo_rk�,Optional -s Reiiuced�5cop 2 v �� a a6� d -r � �- �y�✓ 2� � '�i.:'U`4 J R5 . nrtuantt Unit+Costs :'r� ✓ �Jr u ,ExtendedlCost� 3 1 1 Mobilization/General Conditions - 1 EA - $ - 4 2 Concrete Repairs 5 a. Floor Surface 31SF $ - 6. b.Slab Edge up to 12" deep 106 LF $ - 7. c. Slab Full Depth .. - 1 SF .. -$ 8 d. Spot repairs 8 EA $ - 9 3 Post Tension CableRepairs Lock-off/Splice 45 EA $ - 10 A STACK Balconies BASE BID Total $ - 11 Post Tension Subcontractor Name 12 13 Owner Options 14 4 Epoxy Inject Rail Posts 300 EA- -- $ _ - 15 5 Balcony Floor Coating Strip. 400 SF _ � $ - 16 a. Balcony Tile Removal 30 SF $ - 17 6 Replace Existing Floor Coating at Repairs 450 SF $ - 18 7 Topcoat all Balcony Floors _ 8965 SF i $ - 19 20 - Bid Notes and Assumptions 21 Shutter Tracks to be removed by others and holes filled before restoration project starts 22 Tile Replacement, if needed, to be by others. Tile may also be hiding concrete damage 23 Existing Floor Coating to be maintained, repaired and fully topcoated (Sherwin Williams Duraplate or.equal) 24 Use compatible balcony topcoat -Sherwin Williams Duraplate 289 or equal - color to match existing -- 25 EIFS Wall finish damage by others 26 Concrete repair and Post tension cable repair quantitiesare estimated based on the visual and acoustical inspection 27 Unit costs will be used for any increases or decreases in the estimated quantities 28 Any questions should be addressed to the project engineer 29 Railing Removal and Reinstall or protection as needed to be included in the concrete repair unit pricing 30 31 KEYSTONE.ENGINEERI NG 9 Atrium II A Stack Balcony Restoration and Refurbishment Project Bid Sheet —Page 4 of 4 E. Time and Material Work Labor rate per hour for any work not considered in the above items, which does not lead well to unit pricing or cannot be successfully negotiated Hourly rate: Skilled Labor Labor % Mark up on Materials F. Schedule of Work -Provide the earliest start date available based on current work 4. Start Date 5. Total Calendar days to complete work 6. Substantial Completion Date 7. Attach description of anticipated workforce, number of stages/stacks worked on at a time, total manpower, etc. G. List of proposed subcontractors (the use of local subcontractors is encouraged) TRADE SUBCONTRACTOR NAME, ADDRESS AND PHONE# 1 Bidders Information Firm Name: Business Address: Telephone: Fax: E-Mail: By Signature Title Corporate Seal KEYSTONE ENGINEERING 10 Type/Print Name Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 040- GENERAL CONDITIONS OF THE CONTRACT The contract document shall be the Standard Form of Agreement between the Owner and Contractor, AIA Document A-201 2007 Edition. Payment Application shall use forms AIA G702 and G703. The General Conditions of the Contract shall be AIA Document A201, 2007 Edition, and is incorporated into the Contract Documents by reference. Contractor will be reimbursed any legal fees to amend/dispute language in the Documents listed above in preparation for execution of the Contract. Additional Copies of these documents may be obtained from The American Institute of Architects, 1735 New York Avenue, N.W., Washington, D.C. 20006, or from local AIA office. KEYSTONE ENGINEERING 11 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 100 Project Description The Atrium II complex consists of one 12 story oceanfront condominium building. The building is approximately 22 years old. The building has living unit access via common walkways, stairs and elevators with 4 total stacks and 11 levels of private balconies. The buildings are constructed utilizing poured in place concrete horizontal slabs with post tensioned (PT) cables supported by structural load bearing columns. The exterior walls are a masonry construction with a painted stucco finish. The work of this project includes the repair of concrete spalling on the A stack balconies, primarily at the slab edges, which will include any necessary work on the post tensioned cables. KEYSTONE ENGINEERING 12 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 101-SUMMARY OF WORK All work to meet current, applicable building codes, industry standards and manufacturer's requirements. The contractor shall furnish all labor materials equipment, incidentals, supervision and insurances to install and complete the work items described in these documents, a summary of which follows. The Contractor is to visit the site and become familiarized with the conditions present. The Contractor shall incorporate these conditions into the bids as to cover necessary costs for access, mobilization, debris removal and any other related project aspect. Mobilization Includes all costs of project related to permit process, on site storage and equipment, debris removal, dumpsters, building access equipment and all other costs not specifically covered by other bid line items. The mobilization is a fixed cost line item and shall not be increased or decreased by additions or reductions in the anticipated scope of work. 2. Existing Floor Finishes Existing floor finishes are to be removed on the A stack balconies, as needed to accomplish the concrete repairs identified by the engineer. 3. Concrete Repairs All concrete repairs shall be performed to ICRI and ACI Standards on a unit cost basis. Concrete and stucco repair work will be as directed by the project engineer including size, location, surface preparation and proper inspections. All concrete repair unit prices are to include incidental stucco replacement reinforcing steel replacement/supplement. Railings are to be removed and reinstalled as needed, and/or protected from damage, as part of the concrete repair unit costs. a. Surface Repairs: Defined as concrete repairs to the topside of the horizontal slab under the first mat of reinforcing steel, measured on a square foot basis. b. Edge Repairs: Defined as full depth concrete repairs of the balcony edge up to 12" back from the slab edge requiring formwork, measured on a linear foot basis. Full depth repairs beyond the 12" slab edge will be calculated and billed as Full depth repairs. C. Full Depth Repair: Defined as concrete repairs that require the removal of the slab to the full depth of the concrete requiring form work, away from the balcony edges, measured on a square foot basis. d. Rust Spots: Defined as spot locations of stray steel or reinforcing chair legs on any other repair less than .25 CF. e. Columns/Beams: Defined as concrete repairs to the columns, beams, headers or other areas of the building not defined above, measured on a cubic foot basis. f. Ceiling Repairs: Defined as concrete repairs to the underside of the horizontal slab under the bottom mat of reinforcing steel, measured on a square foot basis. KEYSTONE ENGINEERING 13 Atrium II A Stack Balcony Restoration and Refurbishment Project 4. Post Tension Cables Post tensioned cable repairs will be completed on an as needed basis to accomplish the necessary concrete repair work associated with the balconies or walkways. Certified technicians are required for any post tension cable repairs, lock -offs, splices or cable replacement. In areas of balcony slab edge repairs, as directed by the project engineer, install an appropriate PT lock off device prior to excavating concrete behind the edge back up steel. Unit price is to include installation of lock off device, splice chuck installation, new cable end, and complete anchor head system with grease cap, and re -tensioned after edge repair is completed and lock off device is removed. Related concrete work will be paid at the unit cost in the bid sheets. 5. Balcony Floor Coatings Balcony floor finish coatings are to be repaired as needed where concrete repairs are accomplished. The contractor is to replace the coating system textured base coat and top wear coat as needed and feather blend into existing remaining existing coatings, to closely match color and texture with minimal noticeable transition. Staging and Project Duration Staging of the work The work will be performed in a sequence that is suitable to the contractor and to fully expedite the work in an efficient manner that does not compromise the quality of work. The contractor will have full access to the facility as described in the project schedule with uninterrupted work days and hours including access on weekends, holidays and overtime as needed to accomplish the schedule requirements with the exception of this hours that do not comply with local municipalities' requirements. 2. Schedule Project start April 2019. Duration estimated to be 60 days. 3. Contract The contract documents will include a standard AIA contract between Owner and Contractor with appropriate attachments and references. KEYSTONE ENGINEERING 14 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 102- PROVISIONS FOR INSURANCE 102-1 Without limiting any of the liabilities obligations of the Contractor, the Contractor shall furnish to the Owner a duly executed Certificate of Insurance, stating that the following types of insurance coverage and limits are in force and that insurance will not be canceled without ten (10) days prior notice to the Owner by the Insurance Agent. A. Commercial General Liability: General Aggregate $2,000,000.00 Products/Completed Operations Aggregate $1,000,000.00 Personal and Advertising Injury Owners and Contractors Protective $2,000,000.00 Each Occurrence $1,000,000.00 B. Automobile Liability: Combined Single Limit/Each Occurrence Bodily Injury/Property Damage $1,000,000.00 C. Excess Liability Umbrella: Each Occurrence $1,000,000.00 Aggregate $1,000,000.00 D. Worker's Compensation and Employers Liability: Each Accident $1,000,000.00 Disease Each Employee $1,000,000.00 Disease Policy Limit $1,000,000.00 Contractor shall indemnify and hold harmless the Owner, Engineer and his agents and employees from and against all claims, damages, losses and expenses arising out of or resulting from the performance of the work, provided that any such claims, damages, loss or expense are caused in whole or in part by any negligent act or omission on the part of the Contractor, any subcontractor, or anyone directly employed by the Contractor. KEYSTONE ENGINEERING 15 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 103- PAYMENT AND PROGRESS SCHEDULE 103-1 The Contractor shall submit a schedule of estimated construction progress within ten (10) days of award of the contract 103-2 The schedule shall be in the form of a bar chart and shall adequately annotate all activities and start/finish dates 103-3 The schedule shall be updated upon the submission of each application for payment on a monthly basis. No applications and certificates for payment will be approved without being accompanied by the updated progress schedule. 103-4 Payment Requests (and back-up data for billings) are to be submitted to the Engineer for progress payments and appropriate stored materials. Within approximately 7 days, the Engineer will review the pay request and either approve payment amount, request additional information or modify the payment amount due. Within 7 days of the Engineer approved payment request, the Owner will provide payment to the Contractor. The Contractor shall include appropriate lien releases for each payment including from all sub -contractors and suppliers. 103-5 Payment application shall be emailed to both the project engineer and engineers office email for review and approval. KEYSTONE ENGINEERING 16 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 104— JOB SITE CONDITIONS AND REQUIREMENTS 104-1 Hours of Construction Operation: Monday through Friday 7,30 a.m. to 5:00 p.m. with the exception of national holidays. No work is permitted on Saturday or Sunday, unless otherwise designated by Owner. Noisy activities, such as jack -hammering, are not permitted until after 8:00 a.m. 104-2 Parking: The Contractor's personnel are authorized to park in areas designated on the site plan, or otherwise designated by the Owner. 104-3 Construction Trailers: One construction trailer shall be permitted to remain in overnight on the site at a location designated by the Owner for the duration of the contract. 104-4 Dumpster: One dumpster is permitted on site at a location designated by the Owner and shall be provided by the Contractor 104-5 Portable Toilets: Portable toilets are permitted on site. Yes X No If "No", Contractor may use facilities in the building as designated by the Owner. If "Yes", Owner must approve location. 104-6 Clean Up: The job site shall be left free of debris at the end of work each day. The dumpster shall be emptied on a scheduled basis. The dumpster shall not be filled above top sides. 104-7 Contractor Use of Premises: Limit use of the premises to areas indicated; allow for Owner occupancy and use by the public. 104-8 Confine operations to areas within limits indicated. Portions of the building beyond areas in which work operations are indicated are not to be disturbed. 104-9 Keep driveways and entrances clear at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize requirements for storage of materials. 104-10 Use of the Existing Building: Maintain the existing building on an operational condition throughout construction. Repair damage caused by construction operation. Take precautions necessary to protect the building and occupants during the construction period. 104-11 Contractor will not be allowed use of the elevators. Stairways shall not be used for storage and shall be kept clean and free debris at all times 104-12 Full Owner Occupancy: The Owner will occupy the site and existing building during the entire period of construction. Cooperate with the Owner to minimize conflicts and facilitate Owner usage. Perform the work as so not to interfere with the Owner's operations. 104-13 Contractor shall remove all material, equipment, and debris from the premises within five (5) working days from final inspection by Consultant and Owner. 104-14 Rubbish shall be lowered by the way of chutes, taken down on hoists, or lowered in receptacles. Under no circumstances shall any waste be dropped or thrown from one level to another outside the building. 104-15 Care should be taken by workmen not to mark, soil, or otherwise deface finished surfaces. In the event that finished surfaces become defaced, clean and restore such surfaces to their original condition. KEYSTONE ENGINEERING 17 Atrium II A Stack Balcony Restoration and Refurbishment Project 104-16 Contractor must coordinate with Owner for the protection of automobiles while work is in progress to safeguard against possible damage to any vehicles. 104-17 The responsibility for the removal and reinstallation of external ladders, mechanical equipment etc. Other devices must be determined prior to commencement of the work and a policy agreed between the Owner and Contractor that is both practical and equitable for this purpose. The policy to be adopted shall form and amendment to the contract. 104-18 The pool area must remain accessible as best possible during the project. The contractor is responsible to erect necessary safety equipment to allow pedestrian access from the building to the pool and ensure pool availability, unless safety dictates otherwise. 104-19 scope. KEYSTONE ENGINEERING 18 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 105 — CONTRACTOR RESPONSIBILITY 105-1 Contractor shall maintain his own credit standing for material purchases in accordance with terms set forth by suppliers and shall supply lien releases when Notice to Owner has been filed by the Contractor and/or his suppliers. 105-2 Contractor shall properly maintain payrolls and pay related taxes and insurance required. 105-3 Contractor shall pay sales tax levied on materials at the point of purchase. 105-4 Contractor must by duly licensed by the governing body of the area in which the facility is located, and obtain all required permits for the work involved. Negligence in obtaining proper permit resulting in a fine shall be the total responsibility of the Contractor. 105-5 Contractor shall employ competent superintendents, foremen, and workmen. Contractor shall remove any person employed in the job that shall conduct himself improperly or be deemed incompetent or negligent in the performance of his duties by the Project Engineer or Association. 105-6 Contractor shall see that personnel employed on the job are fully and properly clothed in identifiable uniforms while working on the premises or entering any part of the facility 105-7 Contractor shall provide the Owner with safety notices to be posted in conspicuous locations accessible to all residents/ guests. Notices shall remain posted for the duration of the construction contract and additional notices may be obtained on request. 105-8 Contractor shall take all reasonable precautions to protect adjacent surfaces, finishes, and properties. However, when the work, by its nature, involves activities that may result in potential damage: i.e., vibration of the structure or the creation of excessive dust, Contractor shall not be responsible for damages resulting from the normal and unavoidable circumstances of the work. 105- 9 Contractor shall protect adjacent surfaces, finishes, and foliage from damage or staining during application. 105-10 Contractor will be responsible for providing window cleaning in the areas of work at the completion of that given area. 105-11 Other specific Contractor responsibilities may be as listed under Job Site Conditions and Requirements. 105-12 Contractor shall protect swimming pool area and maintain its use for owners during non -working hours. KEYSTONE ENGINEERING 19 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 106 — OWNER RESPONSIBILITY 106-1 Exterior work is to be performed from the exterior of buildings. However, in the event it becomes necessary to enter the building, Owner will, with 24-hour minimum notification, provide access and be in attendance for building entry. 106-2 Owner will assign parking spaces to the Contractor for vehicles and equipment. Water and electricity use will be confined to common building sources only. Individual owner unit electricity and water is not to be used. Any modification of the utility source required will be the responsibility of the Contractor. Any utility source modified is to be restored to original condition at the end of the project unless otherwise approved by the owner. 106-3 Owner will be responsible to remove or protect miscellaneous loose objects in the work area; i.e., potted plants, patio furniture, etc. If items are not removed, Contractor will take due care to protect them, but will not be responsible for any damages that might occur. 106-4 Owner will be responsible for notifying all concerned of the work being performed in order to avoid any injuries or damages to personal property. Areas of possible overspray or dripping of material will be marked off and signs will be erected by Contractor. Owner will be responsible for enforcement of restricted areas, and no compensation will be paid by Contractor for damages or injuries occurring within the zoned areas. 106-5 It will be the responsibility of the Owner to perform any trimming or pruning of foliage which will interfere with the contracted work. Although Contractor will take all reasonable precautions for the protection of plants. Owner shall be responsible for assessment of potential plant damage resulting from unavoidable exposure to fumes and/or residue of materials. Plants that would recover naturally in time shall be done at the discretion and expense of the Owner. 106-6 Owner shall be responsible to advise residents/tenants, neighbors of potential damage situations that may occur in the normal course of the work, such as vibrations or excessive dust, and will assume responsibility for any claims for damages resulting from normal and unavoidable circumstances of the work. 106-7 The Owner shall furnish electrical power (110-volt) and water for the Contractor's use. Any modification to the source of electricity is the contractor's responsibility. Drinking water is to be furnished by the Contractor. KEYSTONE ENGINEERING 20 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 107- SAFETY AND PUBLIC CONVENIENCE 107-1 Contractor shall mark off and erect signs in areas where overspray/dripping or hazardous conditions may occur. No damages will be paid for items or vehicles located or parked within the zoned areas. Contractor shall not be liable for,injuries or damages to persons disregarding signs or barriers. 107-2 Contractor shall be responsible for safety administration on the job including tools, equipment, and work methods and must be in compliance with all OSHA safety regulations. 107-3 Contractor shall comply with applicable noise abatement and work hour ordinances. 107-4 In the event of discovery of Asbestos materials incorporated in the construction of the building it shall be the responsibility of the Owner to determine and execute the necessary action to comply with safety and environmental regulations. 107-5 The Contractor shall provide and maintain all equipment, such as temporary stairs, ladders, ramps, runways, chutes, etc., as requested for the proper execution of the work. 107-6 The Contractor shall secure all stages, ladders and other equipment, materials and supplies at the end of each work day. 107-7 All such apparatus, equipment, and construction methods shall meet all requirements as set by local, state, or federal laws applicable thereto. KEYSTONE ENGINEERING 21 _ Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 108 — PRODUCT DELIVERY, STORAGE, AND HANDLING 108-1 Deliver all materials to job site in unopened container, bearing Manufacturer's brand, product name, product number, batch number, and color designated. 108-2 Store materials and equipment at the site in a properly ventilated and secured trailer in an area assigned for this purpose by the Owner. Do all receiving, opening, and mixing in this location. 108-3 Comply with Manufacturers recommendations as to environmental conditions under which materials can be applied. Protect adjacent surfaces from spattering or overruns using adequate drop cloths, masking, etc., as necessary. 108-4 Repair or cause to be repaired any damaged surfaces that occur as a result of matters relating to paragraph 108-3 above. 108-5 Contractor must familiarize himself and his crew with MSDS information and ensure that his site staff has access to MSDS sheets for each product used. KEYSTONE ENGINEERING 22 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 109 —SUBMITTALS AND MATERIALS APPROVAL 109-1 Color selections shall be made by the Engineer and Owner 109-2 Samples of final finish shall be prepared on the job and shall be entire member or 4' x 4' area painted in place or sample board. 109-3 Materials other than those specified herein may be submitted to the Engineer, prior to bid date, together with sufficient data to prove equal -to or better -than qualities of materials specified. 109-4 Immediately following the signing of the contract, or after the Owner has issued a notice to proceed with the work, the Contractor must submit a list of products to be utilized on the project. The Contractor must submit to the Engineer in the form of a three-ring binder which shall include all technical literature from each manufacturer for all products specified, including those approved by the Engineer and submitted prior to bidding. 109-5 Sample warranties must be included. Where the status of manufacturer's warranties has changed or differs from those specified, a statement must be included pertaining thereto. 109-6 Shop drawings must be prepared and submitted to the Engineer for review and approval prior to fabrication for any work requiring off -site manufacture and assembly. Such items may include metal flashing etc. KEYSTONE ENGINEERING 23 Atrium II A Stack Balcony Restoration and Refurbishment Project SECTION 110 - REPAIR OF SPALLED CONCRETE -. PART 1-GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract apply to this Section. B. American Society for Testing and Materials (ASTM) 1. ASTM A 615: "Specification for Deformed and Plain Billet Steel Bars for Concrete Reinforcing." 2. ASTM C 31: "Standard Practice for Making and Curing Concrete Test Specimens in the Field" 3. ASTM C 33: "Standard Specification for Concrete Aggregates" -- 4. ASTM C 39: "Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens" 5. ASTM C 78: "Standard Test Method for Flexural Strength of Concrete Using Simple Beam with Three -Point -Loading" 6. ASTM C 94: "Standard Specification for Ready Mix Concrete" 7. ASTM C 109: "Standard Test Method for Compressive Strength of Hydraulic r Cement Mortars" 8. ASTM C 143: "Standard Test Method for Determining Slump of Fresh Concrete" I� 9. ASTM C 150: "Standard Specifications for Portland Cement" 10. ASTM C 171: "Standard Specifications for Sheet Materials for Curing Concrete" C. American Concrete Institute (ACI) 1. ACI 301: "Standard Specifications for Structural Concrete for Buildings" 2. ACI 318: "Building Code Requirements for Reinforced Concrete" 3. ACI 530/ASCE 5: "Building Code Requirements for Masonry Structures" 4. ACI 530.1/ASCE 6: "Specifications for Masonry Structures" D. Concrete Reinforcing Steel Institute (CRSI) 1. CRSI Manual of Standard Practice KEYSTONE ENGINEERING 24 Atrium II A Stack Balcony Restoration and Refurbishment Project E. International Concrete Repair Institute (ICRI) 1. ICRI 03730:"Surface Preparation for the Repair of Deteriorated Concrete" 2. ICRI 03733:"Selecting and Specifying Materials for Concrete Repair" 1.2 SUMMARY This specification describes the patching of exterior vertical and overhead surfaces including but not limited to balconies, walkways, .beams, columns, stairs and landings with a hand - applied, set -accelerated Portland cement, repair mortar. The replacement of reinforcement may be necessary. 1.3 SUBMITTALS A. General: Submit the following according to Conditions of the Contract and Specification Sections: 1. Product data for materials specked a. Provide the Manufacturer's technical information, including label analysis and instruction for handling, storage, and use of each material proposed. Include Material Safety Data Sheet. Manufacturer: Provide products manufactured by Sika, Tamms or equal. Repair materials must have a documented electrical resistance of 50,000 ohm -cm or less in areas of Active Cathodic Protection, and 15,000 ohm -cm or less in areas of passive corrosion mitigation. 2. Mix Design: Provide mix designs for Plant batched or field -mixed batches 1.4 QUALITY CONTROL A. Manufacturing Qualifications: The Manufacturer of the specified product shall be ISO 9001 Certified and have in existence a recognized ongoing quality assurance program independently audited on a regular basis. B. Contractor Qualifications: CONTRACTOR shall be a qualified in a field of concrete repair and protection with a successful track record of 5 years or more. CONTRACTOR shall maintain qualified personnel who have received product training by a Manufacturer's representative. 1.5 DELIVERY, STORAGE, AND HANDLING A. Deliver repair materials to the job site in the Manufacturer's original, unopened, waterproof containers bearing Manufacturer's name and label, and the following information: 1. Product name or title of material. 2. Product description. 3. Manufacturer's stock number and date of manufacture. KEYSTONE ENGINEERING 25 i Atrium II A Stack Balcony Restoration and Refurbishment Project B. Store all materials off the ground and protect from rain or temperature extremes until ready for use. PART 2- PRODUCTS 2.1 REPAIR MATERIALS, GENERAL Manufacturer: Provide products manufactured by Sika, Tamms or equal. Repair materials must have a documented electrical resistance of 50,000 ohm -cm or less in areas of Active Cathodic Protection, and 15,000 ohm -cm or less in areas of passive corrosion mitigation. 2.2 PORTLAND CEMENT MORTAR A. Horizontal Surfaces: Sika, Tamms or equal B. Vertical/Overhead: Sika, Tamms or equal 2.3 RELATED MATERIALS A. Reinforcement: Provide deformed reinforcement conforming ASTM A 615, Grade 60. B. Formwork: Use plywood or metal formwork free of defects. Formwork shall be straight, level and flat to provide a finished product meeting tolerance specified in ACI 301. C. Bond Breaker: Use bond breaker compatible with repair material and subsequently applied coatings. D. Moisture -Retaining Cover: Provide white -burlap -polyethylene sheet complying with ASTM C 171. E. Liquid Applied Curing Compound: Use curing compound complying with ASTM C 309, Type 1, Class B. —NIC li F. Reinforcing Steel Primer: NIC KEYSTONE ENGINEERING 26 Atrium II A Stack Balcony Restoration and Refurbishment Project PART 3- EXECUTION 3.2 A. Examine substrates where repairs are specified. 1. Repairs shall extend to sound concrete as indicated or verified by ENGINEER. B. Coordination of Work: Notify the ENGINEER about anticipated problems using the materials or procedures specified. C. CONTRACTOR shall locate, identify and mark work areas requiring repair using Drawings as guidance. ENGINEER shall review areas marked prior to removal operations. A. Remove loose, damaged or deteriorated concrete with spade -edged, lightweight pneumatic chipping hammer. Saw cut around the perimeter of the area to be repaired to a depth of at least %2 inch or greater if recommended by the repair material Manufacturer. No featheredges permitted. Sandblast or roughen saw cut edges to promote bond with repair material. B. The depth of removal shall not be less than '/2 inch. The removal shall extend to sound concrete and satisfactory reinforcement. The criteria for replacing or augmenting reinforcing steel shall be: 1. If the entire length of exposed reinforcement is greater than or equal to 85 percent effective cross -sectional area, no reinforcing steel replacement or augmentation may be necessary. 2. If any portion of the reinforcing steel has less than 85 percent effective cross -sectional area, new reinforcing steel shall be installed per ACI 03730 and exposed reinforcing steel shall be at least 36 bar diameters on both sides of the section having less than 85 percent effective cross -sectional area. All areas so treated shall be inspected by the ENGINEER prior to application of repair mortar. C. Obtain a fractured aggregate profile at the surface of the excavation. The horizontal plane formed at the bottom of the excavation shall be chipped to a near flat surface forming rectangularly shaped repair areas, as indicated on the drawings and as referenced in ICRI 03730. Clean steel to remove all contaminants and rust. A tight oxide remaining on steel will be acceptable. Chip back behind reinforcing steel so that the area under the rebar will be equal to or greater than'/< inch. Position bar so at least 1 inch of concrete is maintained. D. Remove all loose material so no dust, latence, loose aggregate or particles remain. Clean the area to be repaired by water blast to remove all debris. E. Soak surfaces of excavation by ponding at least 8 hours before applying repair mortar. Allow surface to become saturated surface dry before placing patch material. F. ENGINEER shall inspect preparation of repair surface prior to concrete repair mortar placement to approve for concrete placement and to record volume or unit measurement of repair. G. Mix mortar in accordance with Manufacturer's instructions. H. Note that Manufacturer requires addition of approved aggregate to the mortar mix. KEYSTONE ENGINEERING 27 Atrium II A Stack Balcony Restoration and Refurbishment Project 3.3 PLACEMENT A. Remove standing water from pre -dampened patch area. Surfaces shall be surface dry at time of application. B. Scrub Coat: Scrub repair material into substrate to fill pores and voids. C. Apply mortar as per manufacturer's directions. A single pour for the required depth is preferred. Where successive layers are required, key in and compact thoroughly to secure bond. Score successive lifts and allow each to initially set (30 minutes) before applying next layer. D. Continue expansion and/or control joints, and drip lines through the repair. E. Trowel to smooth, hard troweled finish after initial set compatible with the surrounding surface and even adjoining edges. 3.4 CURING A. Wet cure horizontal patch for 72 hours after placement by fogging or placement of wet burlap or other saturated blanket (carpet remnant) covered by a polypropylene sheet to reduce evaporation. B. Cure overhead and vertical patches with membrane sealer. C. Protect from rain and temperatures below 40 degrees for not less than 24 hours. 3.5 ACCEPTANCE A. Repair Surfaces: Inspect repair surfaces for smoothness and verify surface tolerances specified for each surface and finish. Correct low and high areas as specified. Test unformed surfaces sloped to drain for trueness of slope and smoothness by using a straight edge and by ponding water. B. Repair finished unformed surfaces containing defects that affect the concrete's durability. Surface defects include crazing and cracks in excess of 0.01-inch-wide or that penetrate to the reinforcement or completely through non -reinforced sections shall be removed and replaced. Patch areas that exhibit spalling, disbondment at edge, popouts, honeycombs, rock pockets, and other objectionable conditions shall be removed and replaced with new patch mortar. C. Correct high areas in surfaces by grinding after concrete has cured at least 1 day. D. Correct low areas during or immediately after completing surface finishing operations by cutting out low areas and replacing with patching mortar. Finish repaired areas to blend into adjacent concrete. E. Repair methods not specified above may be used, subject to acceptance of ENGINEER. 3.6 CLEANING A. Cleanup: At the end of each workday, remove empty containers, rags, rubbish, and other discarded materials from the site. KEYSTONE ENGINEERING 28 Atrium II A Stack Balcony Restoration and Refurbishment Project 3.7 A. Protect other Work, whether being prepared or not, against damage by abrasive blasting. Correct damage by cleaning, repairing or replacing, as acceptable to ENGINEER. B. Provide appropriate signs to notify public of hazards associated with operation. C. Protect all nearby vehicles, passing traffic, living areas, and dwellings from debris generated. D. Inspect work area protection prior to starting Work on any shift to ensure all protective devices are in place and secure. Inspect work area protection throughout course of Work. Repair any discrepancies immediately. KEYSTONE ENGINEERING 29 1 TECHNICAL s` GUIDELINES ' r, Prepared by the lntemational Concrete Repair lnsOtute December 2008 Guideline No. 310.1 R-2O08 (formerly No. 03730) CapyrW 0 20OB WtmgwA CoocM Repae Imam I t' TECHNICAL "V, GUIDELINES Prepared by the International Concrete Repair Intiblide December 2008 Guide for Surface Preparation for the Repair of Deteriorated Concrete Resulting from Reinforcing Steel Corrosion Guideline No. 310.1 R-2008 (formerly No. 03730) Copyright D 2008 International Concrete Repair Institute All rights reserved International Concrete Repair Institute 3166 S. Rhea Road Suite 132, Des Plaines, IL 60018 Ph..: 947-827.0830 Fax: 847-827.0832 Weir site: tiww.icri.org E-mwl: info rr icri.org C MMUETEINPAI yIfn COMenele nr➢61a pp% ,asi,rurc ICHI Guidelines the most promising methods and materials are primary vehicles for accelerating advances in repair technology. Ilbrking through a tartery of forums, ICRI members have Ilse oppurluniry to address these issues andio directly contribute to Improving the practice ofroncrete repair, A principal component of this effort is to make eorefullyselected tssformamon onimportant repair subjects readily accessible to decision makers. Diming the pan several decades, much has been "ported in the literalve on concrete repair methodsandnsateriabrwdwyhme been dneloped and refined Nevertheless, it has been difficult to fsndcriticallynevinved informatlon onthe state of the art condensed Into eaq-to-use forasats. To that end, lCRf guidelines are prepared by sanctioned task groups and approved bythe ICRI TechrdcalAdivilies Committee. Each guideline is designed to address a specific area of practice recognised as essential to the achievement of dimable repairs. All ACRlgurtdelinedocumemsare subjecl to conttsmai mfnv by the membmhip and may be revised as approved by the Technical Activities committee Technical Activities Committee Kevin Michols, Chair Jim McDonald, Secretary Randy Beard Don Caple Bruce Collins William "Bud" Barley Don Ford Tim Gillespie Peter Golter Peter Lipphardt David Radler Michael Tabassi David Whitmore Pat Winkler Producers of this Guideline Surface Preparation Committee Pat Winkler, Chair• Dan Anagnas Randy Beard Bruce Collins William Bud"Barley Peter Emmons• Andrew Fulkerson Randy Glover Fred Goodwin - Kurt Gottinger Tyson Herman Dave Homerding Bob Johnson David Karim Ken Lorene Jim McDonald Beth Newbold Jeffery Smith Sandra Sprouts Rick Toman Patrick Watson Y'onmamin8 re'ron Synopsis This guideline provides guidance on concrete removal and surface preparation procedures for the repair of deteriorated concrete caused by reinforcing steel corrosion. Removal geometry, configuration ofthe repairarea, removal process, edge preparation, reinforcement repair, surface preparation and inspection necessary for durable repairs are discussed. Special considerations for concrete removal associated with column repair am included. Keywords anodic ring effect, bonding, bruising, corrosion, delamination, deterioration, reinforcing steel, structural repair, surface preparation. This document is intended as a voluntary guideline for the owner, design professional, and concrete repair contractor. It is not intended to relieve the profssional engineer or designer of my responsibility for the specification of concrete repair methods, materials, orpmmices. While we believe the information contained herein represents the proper means to achieve quality results, the International Concrete Repair Institute must disclaim any liability or responsibility to those who may choose to rely on all or any pare of this guideline. 310.111-2008 GLIDE FOR SMIFACE PRBMMON FORTY REPAM OF DEIExORNEO CONCRETE RESEIM FROM /P4.\ in.EarvwTiorvwi ilrnl : CONCPETE pEP21p Contents 1.0 Introduction ........... _.................................................................................................................1 2.0 Definitions...............................................................................................................................1 3.0 Exposure of Reinforcing Steel..................................................................................................1 4.6 Anodic Ring (Hato) Effect .........................................................................................................2 5.0 Removal Geometry ... .......... ......................._._...._....................._..........................................2 6.0 Configuration of Repair Area ....... _..........................................................................................3 7.0 Concrete Removal/Surface Preparation...................................................................................3 7.1 Exposing and Undercutting of Reinforcing Steel..................................................................3 7.2 Preparation of the Repair Pedmeter...................................................................................A 7.3 Cleaning of the Concrete Surface and Reinforcing Steel....................................................A -- 7 8.0 Inspection and Repair of Reinforcing Steel.............................................................................5 9.0 Final Surface Inspection ............................................... _........................................................ 5 10.0 Special Conditions at Columns................................................................................................6 11.0 Summary ._..... ....... ..... ................................................. _.......................................... 12.0 References ............................. _..................... ......................................... _............................... 7 12.1 Referenced Standards and Reports....................................................................................7 GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESUJM FROM REWfORCWG STEEL CORROSION 310.IR-2DO8 1.0 Introduction This guideline provides owners, design profes- sionals, contractors, and other interested parties with a recommended practice for the removal of deteriorated concrete tamed by the corrosion of reinforcing steel, including the preparation ofthe removal cavity to provide a clean sound surface to bond a repair material. This guideline outlines removal geometry, configuration, removal process, edge preparation, reinforcement repair, surface preparation, and inspection prior to placing a repair material. An engineer should evaluate the impact of concrete removal on structural capacity priorto performing concrete removal and repair. The repair methods involve saw tuning and concrete removal using impact loch, hydrodemolition, and other removal techniques. Special caution should be taken to locate and avoid tuning or damaging embedded reinforcing bars, prestressing strands, post. tensioning tendons, or electrical conduits. Cutting into these items can be life threatening and may significantly affect structural integrity. This guideline also contains a discussion of concrete removal and preparation for the repair ofcolumns where the concrete is in compression. Special consideration mast be given to the repair of concrete in compression as the load -carrying capacity of the element may be permanently compromised during the concrete removal and preparation process. While the procedures outlined herein have been used to successfully remove concrete and prepare the removal cavity on many projects, the requirements for each project will vary due to many different factors. Each project should be evaluated individually To Aswnain the applicability ofthe procedures described herein. Refer toACI 50611-05, "Guide to Shmcrete, for surface prepar- ation prior to shoterete application. 2.0 Definitions Anodic ring effecu Corrosion process in which the steel reinforcement in theconcrelesurounding a repaired area begins to corrode preferentially to the steel reinforcement in the newly repaired area (sometimes referred to as the halo effect). Bruisedsurface(micr fmcturing):Asurfhm layer weakened by interconnected microemcks in concrete substrates caused by the use of high. impact, mechanical methods for concrete removal, and surface preparation; fractured layer eNTERNnrlON41 CONCRETE REPAIR typically extends to a depth of 0.13 to 038 in. (3 to 10 mm) and, if not removed, frequently results in lower bond strengths as compared with surfaces prepared with nonimpact methods. Carbonation: The conversion ofcalcium ions in hardened mmentitious materials to calcium carbonate by reaction with atmospheric carbon dioxide. Carbonation reduces the pH of the concrete and its ability to protect reinforcing steel and embedded metal items from corrosion. Chloride contamination: Contamination of concrete with chloride ions commonly used in deicing salts and accelerating admixtures such as calcium chloride and sodium chloride. Chloride contamination above the threshold for corrosion can result in comasion of the reinforcing steel. Chloride threshold: The amount of chloride required to initiate steel corrosion in reinforced concrete "der a given set of exposure conditions; commonly expressed in percent of chloride Ion by mass of cement. Corrosion: Degradation of concrete or steel reinforcement caused by electrochemical or chemical attack. h/icmcmck:A cmcktoo small to be seen with the unaided eye. Tensile pullarf test: A test to determine the unit stress, applied in direct tension, required to separate a hardened repair material from the existing concrete substmte. The test may also be used to determine the maximum unit stress that the existing concrete substrate is capable of resisting under axial tensile loading and the near - surface tensile strength of a prepared surface (mia to ICRI Technical Guideline No. 210.3- 2004 [formerly No. 037391 and ASTM C1583). Substrate: The layer immediately under a layer of different material to which it is typically bonded; an existing concrete surface that receives an overlay, partial -depth repair, protective coating, or some other maintenance or repair procedure. 3.0 Exposure of Reinforcing Steel Ile pmctice of ampletely removing the concrete (undercutting) from around the corroded reinforcement, no matter what degree ofcomesion is found, iskeytoachievinglong-term performance of surface repairs. In most cases, complete removal of the concrete from around the reinforcing steel is the best practice, where protection of the reinforcing steel within the GUIDE FOR SURFACE PRERAMTIOH FOR THE REPAP10E0ETERIOR4TED CONCRETE RESUUM FROM RE1300R02 STEEL CORROSION 310.1g-2000-1 �aq�,NT enN.T,oNu r1(ltlli CCNLPCTE qEP{IP Jj � N B T ,TUT F repair cavity is achieved by providing a uniform chemical environment around the reinforcing steel. Ifnoncowiled reinforcing steel is exposed and the concrete is chloride contaminated, removal of the concrete around the reinforcing should occur or other corrosion -reducing means should be considered. Reinforcing steel partially embedded in chloride-contaminaled concrete is susceptible to future accelerated corrosion. If, for stmmmal reasons, the concrete cannot be completely removed from around the corroded reinforcing steel or if a corrosion inhibiting system is not used, the repair may bmmpmmiscd due to continued corrosion. If there is a potential trade-off between durability and structural capacity, structural capacity should always take priority. When reinforcing steel is not fully exposed through the concrete removal and preparation process, alternative corrosion inhib- iting systems should be considered. These systems may include use of corrosion inhibitors, sacrificial anodes, or cathodic protection. 4.0 Anodic Ring (Halo) Effect The existing concrete surrounding a repair area in chloride -contaminated or low pH reinforced Concrete is susceptible to accelerated corrosion. This is due to the electrical potential differential between the chloride contaminated or low pH existing concrete and the chloride -free or high pH repair material. This anodic ring effect can result in accelerated corrosion of the surrounding reinforcing steel leading to future concrete deterioration. To assess existing concrete conditions beyond the repair area, chloride content and pH of the concrete at the level ofthe reinforcing steel should be determined. Where the chloride content exceeds the threshold level for the initiation of corrosion or where the reinforcing steel is susceptible to corrosion as a result of carbonation, a corrosion inhibiting system should be considered to minimize future corrosion. Oshermeasures may also be considered, such as the application ofsealers and coatings, to slow the corrosion process. In severely chloride. contaminated or carbonated concrete, the complete removal and replacement of the contaminated Concrete at and beyond the repair area may be necessary to provide a successful long -tern repair. 5.0 Removal Geometry Examples of the removal geometry for several different types of reinforced concrete elements are shown in Fig. 5.1 through 5.6. Repairs may be located on horiruntal,vertical, and/oroverhead surfaces. The removal in Fig. 5.5 and 5.6 is for columns where the removal will not affect the structural capacity of the column. Removal of concrete within the reinforcing or to expose the reinforcing (concrete in compression) is a special condition and is discussed in Section 10. 0 ., ., q 91� Ooa 07,9 !9l \oG oOOQ ev o� .ov=�{r p opt of 0_oo°0 0o a -moo 1;0� n To o o Fig 5.1: Partial depth repair, slab onrall, section 0op�DcO odor 0 o°cow, oop o�Oa C) a p () Da O-Go u o o p�o`a O Fig. 5.2: Fufl depth repair, slab or wall, section 2-310.IR-2008 GMDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORIUM CONCRETE RESlR1 S FROM REINFORCING STEEL CORROSION Fig: 53: Beam or rib repair, elevation Fig. 5.4: Beam or rib repair, section Fig. 5.5: Column repair, elevation 000 0 0 Oo O o G oo0 ado o p0 °G o�oo 0 oo OB0 Op o 0 q� 0 U00c 00 0 p D aa� p d C �o cone c o 00 ��a oOQir Fig. S.6: Calumn repair section �r0� �IN1 t1�MP110Nw� I CIU c.NcmrrE REP.. � ' 6.0 Configuration of Repair Area Deteriorated and delaminated concrete should be located and marked prior to starting the removal process. Delamineted concrete can be located using sounding or other suitable techniques. The repair area should extend a minimum of6 in. (152 mm) beyond the actual delaminated concrete. Note that during concrete removal, repair areas can grow in size beyond the evens identified due to incipient delaminations that are not readily identifiable by sounding. Repair configurations should be kept as simple as possible, prefembly square or reetang larwith square cement (Fig• 6.1). This may result in the removal ofsound concrete. Reentrant comers should be minimized or avoided, as they an: susceptible to cracking. aIJ P� --► I Ltu-t ( . 1 uu - P'LM]f Fig. 61: Areas ofdeteriorolan and recommended removal eonjguralions 7.0 Concrete Removal/Surface Preparation 7.1 Exposing and Undercutting of Reinforcing Steel Remove concrete from the marked areas and undercutexposed reinforcing steel (Fig. 7.1) using impact breakers, hydrodemolition, or another suitable method. Undercutting will provide clearance under the reinforcing steel for cleaning and full bar circumference bonding to the repair material and the surrounding concrete. Bonding OMPORSMACEPFEPAMTIONFORTHEREPAai GFGFTEPJM DCONCRETERESWINGFRNNREIDWKN'GSTEELCONROSION 310.111-M-3 i r- i GZ� INi YI\NAiIONwI. \IIIUl9 CONCnUE REP1m \QpJ N 8 T I T U T E the repair material to the full circumference of the reinforcing steel will secure the repair structurally. provide a minimum of 0.75 in. (19 mat) clearance between exiamedminforpng steel and surrounding concrete or0.25 in. (6 ram) larger than the worse aggregate in the repair material, whichever is greater. Sound concrete may have to be removed to provide proper clearance mound the reinforcing steel. Ifimpad breakers are used for partial depth concrete removal, the breaker should not exceed 30 lb (12 kg). A 15 lb (7 kg) breaker is preferred Fig. 7.1: Remove concrete to undercut and expose reinforcing steel and provide taulcr o-pair depth Fig. 72: SW rul perimeter to provide vertical edge .; —--1 c o°o �O0o=c>1 b.�t ooaae aty 0 0 0 0 nu o � DO 0� a 00 0 oa `q_ o too g=coo t'. Fig. 73: Abrodre blasting to clean substrate andminforcing to minimize damage to the substrate, reinforcing steel, and surrounding concrete. Concrete removal should extend along the reinforcing steel until there is no further ddam- ination, cracking, or significant corrosion and the reinforcing steel is well bonded tothesurmunding concrete. Care should be takentoovoid significant and sudden changes in the depth of concrete removal, a sthempairmaterial is more susceptible to cracking at these locations. If noncorroded reinforcing steel is exposed during the removal process, care should be taken to not damage the bond to the surrounding concrete. If the bond between the reinforcing steel and concrete is broken, undercutting of the reinforcing steel is required. Remove all deteriorated concrete and additional concrete as required to provide the proper configuration and/or the minimum required thickness of repair material as required by the manufacturer of the repair material and/or the project specifications. 7.2 Preparation of the Repair Perimeter The perimeter of the repair area should be saw cut 0.75 in. (19 mm) deep to provide a vertical edge (Fig. 72) for the repair material. This will avoid featheredgiog of the repair material. Depending on the repair material selected, the depth of the existing reinforcing and the manufacturer'srecemmendations, a sawcut depth less than 0.75 in. (19 mat) deep may be sufficient Care should be taken to avoid cutting the existing reinforcing steel. 7.3 Cleaning of the Concrete Surface and Reinforcing Steel The use of high -impact, mechanical methods to remove deteriorated concrete will result in a surface laycrweakened by interconnected micro - cracks in the concrete substrate. The fractured (bruised) layer can extend to a depth of 0.125 to 0375 in. (3 to 10 mm) into the resultant concrete substrate and may result in reduced bond strength. Remove the bruised layer and bond -inhibiting materials such as dirt concrete slurry, and Ieoscly bonded concrete by oil -free abrasive blasting (Fig. 73) or high-pressure water blasting. The 4-310.IR-2008 GIBIE FOR SURFACEPPHMFP0N FOR TIE REPAIR OF DEIENORAIFDCOMPETE RESWNG FROM RMMRCWG STEEL CORR09Dq saw -cut edge of the repair area should also be blasted to roughen the polished vertical surface caused by the saw -caning. All concrete, corrosion products, and scale should be removed from the reinforcing steel by oil -free abrasive blasting or high-pressure water blasting. Verify that the reinforcing steel and concrete surface are free from dirt, oil, cement fines (slurry), or any material that may interfere with the bond of the repair material. Inspect the repair cavity to verify that all delaminations and deterioration have been removed. If hydro. demolition is used, cement fines (slurry) must be completely removed from the repair surface. A tightly -banded light rust build-up on the reinforcing surface is usually not detrimental to bond. If a protective coming is applied to the reinforcing steel, follow the coating manufacturer's recom. mendations for steel surface preparation. 8.0 Inspection and Repair of Reinforcing Steel Loose reinforcement should be secured in its original position by tying to secure bars or by other appropriate methods to prevent movement during placement ofrepair material. If reinforcing steel has lost cross -sectional area, a structural engineer should be consulted. Repair reinforcing steel by either replacing the Required Lap IM♦CHUEREPAIR �Illll LCNCXETE nEi+<la t-pdin erira�E damaged/deteriomted steel or placing supple- mental reinforcing steel in the affected section (Fig. S.1). Supplemenmlreinforcing steel may be lap -spliced or mechanically spliced to existing reinforcing steel. The supplemental reinforcing steel should extend (lap length) beyond the damaged/deteriorated ores in accordance with ACI 318, "Building Code Requirements for Structural Concrete." 9.0 Final Surface Inspection Immediately prior to placing the repair material, inspect the tap it cavity in verify that all bond - inhibiting materials (dirt, concrete slurry, loosely bonded aggregates, or any material that may interfere with the bond ofthe repairmaterial to the existing concrete) have been removed. If bond. inhibiting materials are present, the repair cavity should be recleaned as previously described. To verify the adequacy of the prepared concrete surface and completeness of bond - inhibiting material removal, a tensile pullofftem (ICRI Technical Guideline No. 210.3-2004 or ASTM C1583) should be considered to evaluate the bond strength capacity and tensile strength of the existing concrete substrate. This test may also be performed after the repair is complete. The pulloffsuengthrequirement should be established by the engineer and included as a performance specification for the repair. Affected Length Loss of of C� Supplemental Bar I Affected Length Fig. 8.P Repair ujdanraged/dereriorated minjorring GUDE FOR STFB.CORROSIM 3101R-M-5 ^I fDCINOHCRUE p10EVNI1Ip`QpL 1NOT1T UT6 10.0 Special Condition at Columns Fig. 10.1: Column loadpath Fig. 10.7a: Columnrepair Fig. 10.3: Column load pathfollowing repair Fig. 10.1b: Column section ' 6-310.1fl-2008 GNOEFOfl SURFACE FRFPP11A71DN FOR RE PEPAWOFDElE010Ap1EDCONCRElEPE5LU0JG Undercutting of reinforcement is a best practice in tensile zones of concrete. In columns, the primary loading condition is compression. From a design perspective, the concrete section contained within the reinforcing cage is considered to carry the compressive loads (Fig. 10.1). The concrete outside of the reinforcement is considered as protective concrete covcrforfrre and corrosion protection of the reinforcement. Removing the concrete within the column reinforcing steel (Fig. 10.2) can greatly increase the compressive stress in the reinforcing steel and the remaining concrete. Upon concrete removal, compressive load paths redistribute around the repair (deteriorated) sections; (Fig. 10.3). Dependingon the size of the concrete removal area behind the column steel, buckling of the column vertical reinforcing ban can occur. In the majority of cases, shoring systems will not unload the compressive stress in the column section. When new repair material is placed in the prepared area, the new material cures and most materials undergo dryingshrinlmge, which results in the new material beingput into a tensile stress state.The newmaterial will notcarry compressive loads until the original concrete compresses further, forcing the repair material into compression. If funhercompression is beyondthe capacity ofthe existing concrete, failure of the column may occur. This key concept affects the concrete preparation process. In normal concrete repair (other than columns), removal of the concrete surrounding the corroding reinforcement (also known as undercutting) is anormal and necessary process to provide for a long-term durable repair. To remove concrete around vertical reinforcing steel in a column (removing concrete inside the reinforcing but cage) can cause the remaining concrete and/or reinforcement in the column to become overstressed. From a structural point of view, this condition may not be desirable. If concrete is to be removed inside the reinforcement cage, a qualified structural engineer should determine the impact of the repair on potential reinforcement buckling and overall structural capacity of the column. Note that the discussion in this section is also applicable in concept to compression zone portions of other structural members such as beams, slabs, and walls (with or without compression reinforcement) where on -going compressive stress exists and where adequate shoring cannot be installed prior to repairs to prevent di splacements an d corresponding stress redistributions during repairs. fG� N,arNw,icN.i {Illll `eeNCPFlF nEVGIP e Yrf�INaT UlF 11.0 Summary The repair of deteriorated concrete resulting from reinforcing steel corrosion is necessary to extend the service life of the structure. Performing concrete repairs using industry -best practices will ensure the success and longevity of the repair. Understanding the existing conditions and cause ofcorrosion will assist the engineer in specifying the type and extent of the repair required, and the type of corrosion mitigation systems and/or preventative measures that should be considered to protect the structure from future deterioration. 12.0 References 12.1 Referenced Standards and Reports The following standards and reports were the latest editions at the time this document was prepared. Because these documents ate revised frequently, the reader is advised to contact the proper sponsoring group if it is desired to refer to the latest version. American Concrete Institute (ACI) ACI 506R, "Guide W Shotcrete" A E706 (RAP 8). "Installation of Embedded Galvanic Anodes" American Society for Testing and Materials (ASTM International) ASTM C 15 83, "Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull. off Method)" International Concrete Repair Institute (ICRI) ICRI Concrete RepairTerminaiogy ICRI Technical Guideline No. 130AR-2008 (formerly No. 03735), "Guide for Methods of Measurement and Contract Types for Concrete Repair Work" ICRI Technical Guideline No. 210.3-2004 (formerly No. 03739), "Guide for Using In -Situ Tensile Pull -Off Tests to Evaluate Bond of Concrete Surface Materials" GLIDE FOR SURFACE PREPARnON FORRE REPAIR DFOEfENgN1ED COI1CREfE 0ESU3PIG 310.111-M-7 �1(]tlrr CCNCAErtTAEPCIA 4�1 9 UTF ICRI Technical Guideline No. 310.3-2004 (formerly No. 03737), "Guide forlhe Preparation of Concrete Surfaces for Repair Using Hydra - demolition Methods" ICRI Technical Guideline No. 320.211-2008 (Immedy No. 03733), "Guide for Selecting and Specifying Materials for Repair of Concrete Surfaces" These publications may be obtained from these organizations: American Concrete Institute 39800 Country Club Drive Farmington Hills, hB 48331 w .concrcteorg ASTM International 100 Barr Harbor Drive West Conshohocken, PA 19428 w .rstm.org Intemational Concrete Repair Institute 1 3166 S. River Road, Suite 132 Des Plaines, IL 60018 x .icri.org 8-310.1R-2008 GImE FOR SURFACEPPHARATION FOR THE REPAR OF DEIEFORATED CONCRETE RESWUIG FROM RB*MNG SM CORR090N l� NIt ', KEYSTONE 9[91 •� ENGINEERING Fd ,F CONSULTINGr INC. _ 166 Center Street, Suite 210, Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 2156, Ormond Beach, FL 32176 Office: 321A54.7300 • KeystoneEngineeringPE:emn ♦ Fax: 321A59.2888 Balcony Survey Map Project: Atrium 11 Unit # ' A Date: 02-07-2019 LEGEND resod Sliding Doors ®Spall Code ComplianNo Code Compliant: Yes No Above Conditi Fair Poor Condition: �'0000d al or Type: ored Surface Mount Screen Age: ` pl ewer Corroded ®Spall Fasteners: Yes No Holes In Below ^4^ Shutters Threshold: Yes No, / Crack /y!y ivo Floorin Rust spot �'�'� Door .Type: Accordion Roll Down�(�L C KEYSTONE �,� �•,� ENGINEERING. & '= =� CONSULTING, INC. 166 Center Street, Suite 210, Cape Canaveral, FL 32920 a 100.East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321.454.7306 0 KeystoneEnginearingPE.com • Fax: 321.4,59.2888 Balcony Survey Map Project: Atrium 11 .. Unit # A Date: 02-07-2019 LEGEND Railings Ley L Sliding Doors ®Spall Code Compliant: Yes No J Code Compliant: Yes Above Condition: Good Fair Poor Condition: Good Fair >oor Type: Cored Surface Mount Screen Age: Older ewer Corroded ®Spall Below Fasteners: Yes No Holes In Threshold: Yes No A 7^v%^ .Crack Shutters Yes No Flooring Rust Spot Edge oor Type: Accordion Roll Down Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) Column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window SIII (LF) Wa KEYSTONE Ar �'�:�� ENGINEERING & CONSULTING, INC. 166 Center Street, Suite 210, Cape Canaveral, FL 32920 • 100 East Grenada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321.454.7300 • KeystoneEngineeringPE.com a Fax: 321.459.2888 Balcony Survey Map Project: Atrium II Unit # 1 A Date:..02-07-2019 LEGEND Railings Sliding Doors ®Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor Type: Cored Surface Mount Screen . Age: Older Newer Corroded Spall Below Fasteners: Yes No Holes In Threshold : Yes No .V � Crack Shutters - - Yes No Flooring Rust spot Edge Door Type: Accordion Roll Down Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) Column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) ®�a KEYSTONE. ENOINEERING & CONSULTING, INC. 166 Center Street, Suite 210. Cape Canaveral, FL 32920 a 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321A54.7300 • KeystoneEngineeringPE.com - • Fax: 321.459.2888 Balcony Survey Map Project: Atrium II Unit it A Date: - 02-07-2019 LEGEND "n s Sliding Doors Spall Code Complia No Code Compliant: Yes No Above Conditio oo Fair Poor Condition: Good Fair Poor ®spall Type: red Surface Mount Screen Age: Older Newer Corroded Below Fasteners: Yes No Holes In Shutters Threshold: Yes No �\M Crack - - - - Yes No Flooring Rust spot Edge Door Type: Accordion Roll Down Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) 11-\ r1 KEYSTONE %50ENGINHERING. CONSULTING, INC. 166 Center Street, Suite 210, Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321.454.7300 • KeystoneEngineeringPE.com a Fax:321 A592888 Balcony Survey Map Project: Atrium II Unit # A Date: 02-07-2019 LEGEND Ratlines Sliding Doors ® Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor Small Type: Cored Surface Mount Screen Age: Older Newer Corroded ®' Below Fasteners: Yes No Holes In Shutters Threshold: Yes No ^A^ Crack Yes No Flooring Rust Spot Edge Door Type: Accordion Roll Down Survey Quantities Floor Surface (SF) Slab Edge (Lr) Slab Full Depth (SF) Column/Beam/ Header (CF) . Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) � %% ,,% K YSTON 6'� -%4 ENGINEERING & �= =� CONSULTING, INC. 166 Center Street, Suite 210, Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 215G, Ormond Beach_, FL32176 Office: 321.454.7300 • KeystoneEngineedngPE.com • Fax: 321.4592888 Balcony Survey Map Project: Atrium II Unit it /7A Date: 02-07-2019 LEGEND Railings Sliding Doors ®Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good. Fair Poor Type: Cored Surface Mount Screen Age: Older Newer Corroded ®span Below Fasteners: Yes No Holes In Threshold: Yes No Shutters /%,t- Crack Yes No Flooring Rust spot Edge Door Type: Accordion Roll Down TI Survey Quantities Floor Surface (SF) Slab Edge(LF) Slab Full Depth (SF) Column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) ,bu�� W KEYSTONE %r-r�#ENGINEERING & �� . CONSULTING, INC. 166 Center Street, Suite 210. Cape Canaveral, FL 32920 • 100. East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 OHjce: 321.454.7300 • KeystoneEngineeringPE.com • Fac: 321.459.2888 Balcony ®Survey Map Project: Atrium II unit # (D A Date: 02-07-2019 LEGEND Railings. Sliding Doors ® Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor Type: Cored Surface Mount Screen Age: Older Newer Corroded ®5pall Below Fasteners: Yes No Holes In Threshold: Yes No - Shutters IAM Crack Yes No Flooring Rust spot Edge Door Type: Accordion Roll Down Cal b Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) Column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) r,\ 011V� KEYSTONE _ CONSULTING, INC. 166 Center Street, Suite 210, Cape Canaveral, FL.32920 a 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321AS4.7300 Ai KeystoneEngineedngPE.com a Fax: 321AS9.2888 Balcony Survey Map Project: Atrium II Unit # 9 .A Date: 02-07-2019 LEGEND Railings Sliding Doors ® Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor ®Spall Type: Cored Surface Mount Screen Age: Older Newer Corroded Below Fasteners: Yes No Holes In Crack Threshold: Yes No Shutters Yes No Flooring Rust Spot Edge Door Accordion Type: ((�� pww Roll Down Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) Column/Beam/ Header(CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) t i A KEYSTONE • °JJ � ENGINEERING & '= CONSULTING, INC. 166 Center Street, Suite 210. Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321 A54.7300 • KeyetoneEnginseringPE.com • Fax: 321.459.2888 Balcony Survey Man Project: Atrium II unit # Lfl A _ Date: 02-07-2019 LEGEND Railings ® Spall Code Compliant: Yes No Above Condition: Good Fair Poor ®span Type:Cored Surface Mount Screen Below w Crack Shutters Yes No Rust Spot Edge Door Accordion Roll Down Sliding Doors Code Compliant: Yes No Condition: Good Fair Poor Age: Older Newer Corroded Fasteners: Yes No Holes In Threshold: Yes No Type: Flooring 0 KEYSTONE. ENGINEERING =� .CONSULTINGr INC. 166 Center Street,Suite 210, Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321.454.7300 • KeystoneEngineeringPE.com • Fax: 321AS9.2866 Balcony Survey M. lap Project: Atrium II Unit # (I A M Date: 02-01-2019 LEGEND Railings Sliding Doors spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor spall Type: Cored Surface Mount Screen Age: Older Newer Corroded Below Fasteners: Yes No Holes In �V,^ crack Shutters Threshold: Yes No Rust spot Yes No Edge Door Type: Flooring Accordion Roll Down n ea A ,e-\ g! � KEYSTONE mr- ENGINEERING & =• CONSULTING, INC. 166 Center Street. Suite 210, Cape Canaveral, FL 32920 • 100 East Granada Boulevard, Suite 215G, Ormond Beach, FL 32176 Office: 321.454.7300 • KeystoneEnglneeringPE.coin a Fax: 321.459.2888 Balcony Survey Map Project: Atrium II Unit # [!—Af O4 Date:.02-07-2019 LEGEND Railings Sliding Doors Spall Code Compliant: Yes No Code Compliant: Yes No Above Condition: Good Fair Poor Condition: Good Fair Poor Type: Cored Surface Mount Screen Age: Older Newer Corroded ®Spall Below Fasteners: Yes No Holes In ^A^ / '" Crack Threshold: Yes No Shutters Yes No Flooring Rust Spot Edge Door Accordion Roll Down Type: Survey Quantities Floor Surface (SF) Slab Edge (LF) Slab Full Depth (SF) Column/Beam/ Header (CF) Small Repair (ea) Ceiling Spall (SF) Profiling Mortar (SF) Window Sill (LF) SCANNED The Atrium on the Ocean II St. Lucie County Condominium Project A STACK BALCONY RESTORATION BUILDING SECTION 3000 N. Highway A1A Ft. Pierce, FL 34949 BUILDING SECTION ..a a �T 4uefu •i Z MxStdl Pdr Y- io ooean: i ndY 111A GO Ill. t�l` N r i• > a: 4 FtPceM1Ae1 V MgIM� L m _ i1-L17 CATION d L 'Scale: Not TO Sole � 'O L o. INDEX OF DRAWINGS Q-n 5TRUMM - 5-I COVER 5HEET. LOCATION MAP, SHEET INDEX 5-2 5TRUMM NOTES 5-3 Floor Plan/ Scope of Work E z 0o ♦O♦ O Q V W J } t LL �Z o SOS o C1aoa mo.: OY0LL da w� ca 0 E �L t+ STRUCTURAL ENGINEER Q d TOMAS PONCE MSCE, PE FI ORMA PF N—h— & SMCA IH enreot �y iOPIO�a.ef SHEET: 571 Tones Por+ee usoe,Pr: OR 19 nsaesaaee. GENERAL STRUCTURAL NOTES STRUCTURAL DE51GN CRITERIA CAST IN PLACE REINFOR_ CED CONCRETE 1. AULCONC HALL HAV A MINIMU MPKE55IAI8 DAY5 OF 5000 FBI (SLABS) 5000 Ml (COLUMNS AND BEAMS). A SLUMP OF 5- PLUS OR MINUS I', AND HAVE 2%TO 5%AIR ENTRAINMENT, AND A MAXIMUM WATEWCEMENT RATIO OF 0.40 2. HOOKS 5HALL BE PROVIDED AT DISCONTINUOUS ENDS OF ALL TOP BARS OF BEAMS. 3. HORIZONTAL FOOTING BARS SHALL BE BENT I W-Cf AROUND CORNERS OR CORNER BARS WITH A 2'-0' LAP PROVIDED. 4. CONCRETE COVER MIN. 3- WHEN EXPOSED TO EARTH OR 2' TO FORM U.N.O. 5. WELDED WIRE FABRIC SHALL CONFORM TO ASTM A-1851 AI85M. WAY 5MALL BE LAPPED AT LEAST G' AND CONTAIN AT LEAST ONE CROSS WIRE WITHIN ME G'. POLYPROPYLENE FIBERS FOR SLABS ON GRADE TO BE MIN'1.5 M5 OF FIBER PER CUBIC YARD G. ALL REINFORCING STEEL/STIRRUPS AND TIES SMALL BE NEW DOMESTIC DEFORMED BARS FREE FROM RU5T,5CALE f OIL f SHALL MEET ASTM AG 15/. AI85M GRADE 60 U.N.O. REINFORCING FOR FOOTING SHALL BE SUPPORTED ON PRE{A5T CONCRETE PADS. TOP REINFORCING SHALL BE POSITIVELY SUPPORTED BY TEMPORARY STRMGERS. COMBS FOR COLUMNS f FILLED CELL5 SHA L BE SECURED IN PLACE BY U51NG ADDITIONAL CROSS- REINFORCING TIED TO FOOTING. REINFORCNG. SPUCE5 IN REINFORCING WHERE PERMITTED SHALL BE AS PER DETAIL M505. 7. SIMPSON HIGH STRENGTH EPDXY -TIE ANCHORING ADHESIVE WAS USED IN THE DESIGN OF THIS PRODUCT. IF OONTRACTOR5 WISH TO USE A DIFFERENT STOW. THEY MUST FIRST CONTACT THE ENGINEER OF RECORD FOR WWRTEN APPROVAL. MA5ONRY 1..HOLLON LOAD BEARING UNITS 5HALL BE NORMM WEIGM, TYPE 5, CONFORMING TO A5TM C50-0601. WITH A MINIMUM NET COMPRESSIVE STRENGTH OF 2000 psi 2. MORTAR SHALL BE TYPE 5'. CONFORMING TO A5TM C270. 3. COARSE GROUT SHALL CONFORM TO A5TM C476 VAM A MAXIMUM AGGREGATE SIZE OF3/8' AND A MINIMUM COMPRESSIVE STRENGTH AT 28 DAYS OF 3000 MI SLUMP 0 TO 1 1'. CONTINUOUS MASONRY INSPEOTION5 ARE REQUIRED DURING CONSTRUCTION 4. VERTICAL REINFORCEMENT SHALL BE A5 NOTED ON THE DRAWINGS WITH THE CELLS AUXD WMI COARSE GROUT. 5. VERTICAL REINFORCEMENT SMALL BE HEIR IN POSITION AT THE TOP AND BOTTOM AND AT A MAXIMUM SPACING OF 192 DIA OR I OFT WHICH EVER 15'LESS. REINFORCING SHALL BE PLACED IN THE CENTER OF ME MASONRY CELL MM MIN 1/2'CIEARpNCE TO INSIDE FACE. G. REINFORCING STEEL SHALL BE LAPPED PER DETAIL M505. UNLESS OMERtMSE NOTED ON ME DRAWINGS. 7. GROU PS ML - STOSHBE PROVIDED BELOW BOND BEAM. PLASTIC 5CREEN METAL IATH STRIP BELOW. USE MOTEL UAPER AS A STOP IS MOMW OF GROUT INTO LEGS BELOW. THE D SHORING FELT PAPER AS A STOP IS PROHIBITED. 8. TEMPORARY BRACING BE SHORINGOFWALL O PROVIDESTABILITY DURING CONSTRUCTION SHALL IN OR RESPON AND S OF ME LOLL BE ABOVE 9. TYPICAL FILLEDAI CELL REINFORCING SIZE AND SPACING SHALL BE ABOVE AND BELOW ALLWALL OPENINGS O. DO NCE NAPPLYOT UNIFORM LOADS Rr MASONRY CO WALLS FOR (3) DAYS AND NO CONCENTRATED LOADS FOR T H DAYS. PER CODE AGE AMIQU 11. DURING CONCRETE FOURS, ME CONTRACTOR TO ADEQUATELY VIBRATE EME R FILLED CELL WITH EITHER RODDING OR PENCIL VIBRATOR TO ENSURE PROPER CONCRETE CONSOLIDATION GENERAL STRUCTURAL NOTES b10 SPECIAL N'IFL'R?l4. L WIS WIMM W CLABF® A9 A'IV{�SVbLD WILDNG'. I 1 3FL{IdL Plf£G0f91 (F TIE CON9t2CnOtl 19 fEOIIfED pTTE STa1E fF RORDA N ALGafmA`I(£Wnl (314^1eR 553 (LnE RAdDA fiTAN1E5 (XMSTTdICTI(M 6WJ.L 8E NBFELTEDN NSDTAAVCE WIN nE¢PECIAL PLSPECrWl PLI4J 816'9DEDiD i{E LCTdL NWN(AtRT NAYNG JRSDICn011 TIE fiPAC1AL NSP£CTI(N P.AI p PART (i THE PEFdOT O(%]YElllfi W3 pP1 A-5 L W OttPDRMIPYBM14T8ETEVEYFD A1W Sidtf£D APPTNiED BT 11E G8ERAL ramxaf2DR Ii60R rD51pvTra_ .. fEMP1115NOP I3RAOWYBTRAR 74 NFIt9 HARD (•)fi1WLL NAVE NYiP DRAEIIY9 N:NFD BY A FFW'£%IONAL EIGN£ER R-sBTEIaD N TIE state aFLaaca . IIEI'i9 HAR® HJ GN41 BE SIC3'fITIED TOR BGNEEfB f£LOFD QVLT. EIANFAGI11ffR'BLIIERaTI61E NB`6TIYDGOPE9(iM41FAONPER'9 LI1ERA1LLff FOR ALL FN16BN8 AND IiWP1CTB USED N CGL51161GTION W TIE FTWJEQ. fNSERT GENERAL GdOlE01 NIGVLIWIS RER'e NDULBM DEUATERNG ORNIW MiBR TA&8 TEWBFETENTSJ 5TRUCTURAL5TEEL WIDE FLANGE SECTIONS: ASTM A992, GRADE 50, FY 51 K51 TUBE STEEL (HSM: A5TM PE If GRADE B.- 3 = 46 K51 PIPE STEEL: A5TM STRUCTURAL TYPE E . S5.TEEL: y = 35 K51 ALL OTHER STRUCTURAL f MISC. STEEL: A36 Fy=36 K51 2. STRUCTURAL CONNECTIONS: ALL 5TRUCTURAL BOLT5 TO BE A325H U.N.O STRUCTURAL BOLTS SMALLER THAN 5/8' DIA TO BE A307 THREADED ROD SHALL CONFORM TO A36 OR A307 ANCHOR BOLTS SHALL CONFORM TO A5TM F 1554 ALL BOLTS CAST IN CONCRETE: A5TPA A36 OR A5TM A-307 SHOP AND FIELD WELDS: E70M ELECTRODES STEEL REINFORCEMENT SHOP DRAWINGS TO BE PROVIDED TO ENGINEER OF RECORD BEFORE FABRICATION FOR REVIEW AND APPROVAL FIELD REPAIR NOTES T. M195ED'.F BOLTS FOR WOOD BEARING WALLS MAYBE SUBSTITUTED WITH 1/2' DIA. EPDXY ANCHORS WITH T EMBEDMENT. 5110P5014FSEP EPOW ADHESIVE BINDER FOLLOWING ALL MANUFACTURERS RECOMMENDATIONS OR SIMMON 1/2' TIMM HD BOLTS WITH MINIMUM 7- EMBEDMENT. SEE PLAN FOR EMBEDMENT DEPTH AT FLOOR STEPS. 2. FOR M155M VERT. DOLVELS, DRILL A314- DIAMETER HOLE 6' DEEP AT THE LOCATION OF THE OMITTED REBAR AND INSTALL A 32- LONG M5 BAR INTO THE EPDXY FILLED HOLE. USE A TWO PART EMBEDMENT EPDXY (SIMPSON HIGH 5TRENGM EPDXY -TIE ANCHORING ADHESIVE ) MIXED PER THE MANUFACTURERS INSTRUCTIONS. A55UM THATALL DUST AND DEBRIS FROM DRI LUNG ARE REMOVED FROM THEHOIE BY BRUSHING AND USING COMPRESSED AIR PRIOR TO APPLYING THE EPDXY. ALLOW ME EPOV TO CURE TO THE MANUFACTURERS SPECIFICATIONS, THEN FILL ME CELL IN THE NORMAL WAY DURING BOND BEAM POUR 3. FOR MORTAR JOINTS IE55 MAN 114'. PROVIDE (1) Y5 VERT. IN CONIC. FIDYD CELL EACH SIDE OF ME JOINT ( BAR DOES NOT HAVE TO BE CONT. TO. FOOTING 4. MISSED UNTELON M75 FOR MASONRY CONSTRUCTION MAY BE SUBSTITUTED WITHO 1 WNAN TO TRUSS FORWIST SPUFTS LESS MAN TO MASONRY AND 1 I Od NAILS TO LESS FOR UPLIFTS LF C MAN STRAP P 1 (MIS (2) MTSM 6 FOR UPUFS L ( MAN 1 N HG IF CORNER STRAP I5 MISSED CONTRACTOR TO INSTALL (2) 51MP5GN HGPM I O W/ (4) I/4' X I IYL' S05 2ND FLOOR JAMB TT5 W/(26) 1Gd.i EDGE 33Ya YEATfIER HSISTA•Y£ l WEfffY13RCCNCHIE BLLW1ESlLR 01{ER0.AT tlfddCE91 CF 1HE TE0i02-ETD LR FD6T-1WIR®CONGEIE %d89 AH TO Ff}Wi EIFg9ED TO TIE OE41{&R lIW'TW WIT ]. APRIGITILN AWNPdACe FTBPARAlION fiNALL BE MACCq�/JYE WiN PI/t1FKlIdER9 EPEDFeATIas, . i DESWIFl�Cli0N AID f81rn'Y6All TLR11DTRC NGfE9 A'D fE&Y$98N4LL MBET RcOlR8ffM89ET TORfH N afa STAWOA(A9311 AFD 3DL i I%WWN'$TCR 9itlipY AW F£WIOftMG 91ULL :E Ff�PA®BTAR4T�AFSYa15TET� FfW£901RL1L ENiN9£4 BNOiBY B1GN8�.Y DR IiHESB1TAlN£HBTMSR LLNBiR1CTIW! 90E TO (:QFITd'I nWT Sibfd4' N49 BFJ3l R19TW1ID F£RFS90�YF]I1B 91IOYI1(N GB6TIED ORILBYd . 33]1 f/J1i41 L MUSE DEMAt1Ri OR ,4XI OR ADDITION W lXNfi1RC0Rly HE pliall v,61NER RECORD i1E DRAWVfd FWt BE fEVmIID ADD APPRNFD NotdiPY BY HE B'YNEEFWIRBGCTa. 2 AL1E@NIE OR ADDED f:Q61FNOTWI HELCGn(T8 dR5 dC[.g19431 14T A4a oMNGE olmE¢ W6C11 oat NIBtlNffiNT+nmrr�s Br TIE ENGNHR OF ISlLfID FOR fEDE3Tfl (F TIE fiiRC111.�BCTAA, ETD CODE CRITERIA NFPA70-11. NAnOlUl E1ECTNCAL LADES.(NEC 2014) BUILDING COOS REOUIREMENS FOR REINFORCED CONCRETE. (Aa 31"3) SMCIFIU➢ON5 FORSTRDGTIRAL CONCRRE BUIWINGS - IACI 301-13) • NIIDING CODE REOUIREMfNTS FOR M450NRY 51RLCTIRFS-"MS 402-13 C ON-2015CEITION NATIONAL DESIGN SPECIFICATION WR WOOD CONSTRUCTION -OM EDITION • APAftWOOD FRAMEDE5IGN 5.FECIFI MANUAL 2015 fDINON. AMARCM 5 D DESIGN CIVIL I nON GINU AMMJNlJ SMGNMAtCIVIL ENGINEERS:ASCl15EI 7-10 AWMINU IDESIGNMANUAL-2010EDITION 7ELBU • SPECIPIGHONS FORSTRllCTUW.L STEEL BUILDINGS-(NSC 360-I D) GENERAL ROOF LOADING SHINGLE METAL TILE HEAVY' ROOFfFSF) ROOF(MIT ROOFfMH ROOfIPSf) TOPCYIORDLL 20 20 20 20 TOP CHORD OIL 10 10 15 25 BOTTOM CHORD LL' 0 0 0 O BOTTOM CHORD OIL 10 10 10 10 TOTAL IF5F) . . 40 40 45 55 .. BOTTOM CHORD U. (OFO ATHC5 Wl UMITED 5TOR. 20 ATTICS W/HEAVY 5TOR 50 ' ATTC5 W1 NO STORAGE ID (NONLONNRRENB 07r7=07= WD PER COPE_ N FN _MI _ONLY PPFROVAL FROM FOR ORINDICATED ON PLAN. GENERAL FLOOR LOADING TOP CHOWM 40(MF) COMMENTS: TOP CHORD OIL 10"F) BOTOM CHORDU. OnR BOTOM CHOWOL SIP5F) SPECIAL FLOOR LOADING BALCONIES I MCR5 60 (PSH COMMENTS: DEFLECTION CRRERIA ROOP RAPIEP$ W I80 W 20 CJ MEIRS: ROOP RAFTERS hV/O NG) FLOOR LU360 W360 ry240 TU240 14015E5/BEAMS" ft'lL WOI'Ur W4B0 N240 'TLMAXI'UP T040PT SPMI .'R MPX 3/4' WIND LOADING CRITERIA MUD SPEED (ULTIMATE) 161 MRI .WIND SPEED (AU.MABLE1 116 MPH B(POSURB CATEGORY D BUILDING CATEGORY II .BUILDING TYPE' V ENCIOSURECIA55IHGATION ENCLOSED - INTERNAL FRF55URECOEFFICIENT -+1-0.18 'A5CE 7-1 O WALL DESIGN, ALLOWABLE COMPONENT5 AND CLADDING WIND PRE55URE5 AND SUCTIONS EFFECTIVE WIND PRESSURE WIND PRESSURE WIND AREA AND SUCTION (PSF) AND 5UCTION (50 FEET) (+)VALUE DENOTES PRESSURE DIAGRAM (-)VALUE DENOTES SUCTION AREA ® I O5 . 20 (+) 66.0 0 fif.0 (+) "JO (.)1172 50 0 0.6 f-))1039 (+) 55.1 (+) 100 f) 0.0 (d 0.6 DIAGRAM GENERAL PRE55URE NOTES NOTES: I. MULTIMYME ABOVE PRE55URE5 BY L6 TO GET ULTIMATE WIND PRE55URF5 Z 00 Y O O Q CJ LLJ J c Z D MOM ` W J Z a OCO0� Y o LL da F- WR cn c Q O E L- Q d SHEET: 5-2 OF: 19 TDMABIroxcB MscePB FLPE aF,MH I , r AREAS OF WORK FOR REPAIRING THE SLAB EDGES ON STACK A lwmnx°�wi ma m..M/MONJTifiO Hub °j rianW'm��a wAA T ® T`AAT. A manna uns..um �.1 •I c¢u a�motII 10 �Kc. ¢a®.Mfa¢ x �@ (na lumen 0 ao.N .e act.. m TA W �W W®Fes a. .1 .vwl ve'm. FLOOR PLAN UNIT "D" SCALE: 1/4' _ ]•—O' A.°iwv'O°a MCI . .1.1al mars Pammao elevama more RI ta•xz uA•ss IaP�w ®lopaeoemn cf POMNvea Eiw ea enaeee N' - TYW sI: Fbme wrap eadipolar. by eM kotlan wM arerge bneder - aerey renoRg. SHORING DETAIL rmlcA sae M DEPTH F SCOPE OF WORK: Refer to the Project Manual Document for Specific work areas of each individual balcony Existing floor finishes are th be removed an the A stack balconies, as needed to accomplish the concrete repairs identified by the engineer. All concrete repairs shag be performed to ICRI and ACI Standards. Concrete and stucco repair work will be as directed by the pmject engineer including size, location, surface preparation and proper inspections. All concrete repair unit prices are to Include incidental stucco replacement reinforcing steel mplamment1supplement Railings are to be removed and reinstalled as needed, and/or protected from damage. _ 'Surface Repairs: Defined as concrete repairs to the topside of the horizontal slab under the first met of reinforcing steel. Edge Repairs: Defined as fug depth concrete repairs of the balcony edge up to 12' back from the slab edge requiring form work Full Depth Repair: Defined as concrete repairs that require the removal of the slab to the full depth of the concrete requiring form work, away from the balcony edges. Rust Spots: Defined as spot locations of stray steel or reinforcing chair legs an any other repair less than.25 CF. ColumnslBeams: Defined as concrete repairs to the columns,. bows, headers mother areas of the building not defined above. Ceiling Repairs: Defined as concrete repairs to the underside of the horizontal slab under the bottom mat of reinforcing steel. Post tensioned cable repairs wig be completed on an as needed basis to accomplish the necessary concrete repair work associated with the balconies or walkways. Certified technicians are required for any post tension cable repairs, lock -offs, splices or cable replacement. In areas of balcony slab edge repairs, as directed by the project engineer, install an appropriate PT lock off device prior to excavating concrete behind the edge bark up steel. Balcony floor finish coatings am to berepaired as needed where concrete repairs are accomplished. The contractor is to replace the coaling system to cured base coal and cop year mat as needed and feather blend Into existing remaining existing coatings, to closely match color and texture with minimal noticeable transition. TA e ^— iPOST INSERT !n- sie-,s-.r BASE PUTE In- mA gas w/ .Dsz wxn ausnNc. � z PosT BASE PLATE LAYOUT ._ N EOC SS TN cws EP XT DVLECTRK FILL PAINT/WATERPROOF EXTERIOR' REMOVE EAST. CONC. FAILS h INSTALL. NEW ALUM. RARING REMOVE M-E WATERPROOF PT Splice Chuck Al SS WEROED RWS C.WcIPe siQ rs WAS4EN RrED. Na-Es skue: E CANTILEVERED. BALCONY SLAB REPAIR Nrs - BEYOND I� "tr Tk i .O L. a E 0 •E Z 0- -0r. O UOaa) u1 m J �L lL iZ � O 2 0 GZ�Z A 0 !L Om Y0LL dQ yI/ CO C 0 O E 4.0 .` W L� r a7�1%Lil� (]/�IKj L�6JGIN [ [!N' P�tic� xxwc a�Ldl CONSULTQlG.INk JOEHSe�0 �* E165*0018 i#� /®^60es`fr.'C mTa ce' a OR%O��C ��.s��.y�W{.�:��"� uW.or P01/OMAL �� mn� SHEET: S-3 TOMASPONCEMSCEPE F W5=55 OR