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Home My WebLink AboutSURFACE PREP FOR REPAIR OF DETERIORATED CONCRETETECHNICAL SCANNED BY St. Lucie County Prepared by the International Concrete Repair Institute December 2008 FILE COPY I Guide for Surface Preparation for the Repair' of Deteriorated Concrete Resulting I from. Reinforcing Steel Corrosion Guideline No. 310.1 R-2008 (formerly No. 03730) -D FA IENERSORArIACHMEN'M IT CONC95HEF SPONSIBILITY OF THE CONTRAC-pon OR RECORD �4, K4—% THESE PZS AND ALL PROPOSED WORK ST. LUCIE COUNTY SMILDING DI� ARESUE To ANY CORRECTIONS REVIEWED FOR COU_PUANC REQUIRED BY FIELD INSPECTORS THAT REVIEVT e�eAml OKI MAY PLE 151T ICJ YN ARY IN ORDER TO COM % U PP nATF 1,C2 WA -A LICABLECODIES. PLANS AND PERMIT MUST BE SITE OR NO INSPECTION(S) 1 Copyright 0 2008 International Concrete Repair Institute All rights reserved. International Concrete Repair Institute 3166 S. River Road, Suite 132, Des Plaines, IL 60018 Phone: 847-827-0830 Fax: 847-827-0832 Wel� site: www.icri.org E-mail: info@icri.org MATHERS ENGINEFRING CORPORATION 2431 SE DiAe Highway Stuart, FL 34996 Phone: (772) 287-0525 EB#004456 PRE -BUILDING PERMIT ADDENDUM RECEIVED Date: August 09, 2018 AUG 2 3 2018 To: St. Lucie County Building Department ST. Lucie County, Permitting 2300 Virginia Avenue Fort Pierce, FL 34982 Referenced Project; Concrete Restoration for Exterior Balconies For Building #5 Unit Numbers 5-A, 5m% 5-C, 5-D, 5-E, 5-F, 5-G, 5-H, 5-1, 54, 5-K and 5-L. For Villa Del Sol Condominium Located at 11000 S. Ocean Drive, Jensen Beach, FL 34957 Contractor: Blue Coast Construction 2587 SE Monroe Street Stuart, FL 34997 Background: The removal and restoration of deteriorated concrete and steel within beams, columns, decks and adjacent walls will comply with the IRCI Guideline No. 03730 (a copy of which is attached hereto) or as modified by Engineer as work progresses. The anticipated work involves the initial demolition, and then the removal, replacement and restoration of concrete and reinforcement as required. The degree of restoration is currently unknown, until such time as the initial demolition has begun. The anticipated sequence of repairs is as follows: • Shoring required for repairs of all columns, beams and decks (if required by engineer) • Removal and restoration of concrete and reinforcement steel within beams, columns and decks. (ICRI Guideline No. 03 73 0) • Minor chipping and patching of areas not requiring fall depth repairs. • Applied deck coating. The following materials are approved for anticipated use in this restoration (see attached manufacturers specifications): • Sikaerete 211 Concrete Mix. • SikaTop 123 PLUS. • Sika Armatec 110 EpoCern bonding agent and rebar coating. • Sika FerroGard 903. • Sikagard 701W. • Neogard Decorative Peda-Gard The above sequence is general in nature and will be modified as Testorationwork progresses. Observations of the initial demolition will determine any required modifications to the above procedures and materials selected for the final restoration process. 2431 SE Dixie Highway Stuart, FL 34996 Phone: (772) 287-0525 MATHERS ENGINEERING E13#004456 CORPORATION Based on initial visual observations, repairs will not require shoring; however, in the event the demolition work reveals that shoring will be required, the engineer will instruct the contractor to shore the area as well as the number of levels required. Tbc instructions given to the contractor will be submitted to the Building Department with the final close-out documents. We have been authorized by the Association to work with the contractor during the restoration and, will inspect work partially completed as well as observe results of the new demolition prior to field authorizing the repairs to be completed. The proposed concrete restoration work, except as authorized by the engineer's modified instructions, will comply with specifications outlined in the IRCI Guideline No. 03 730, as well as the applicable minimurn. building codes and the applicable fire safety standards as determined by the local authority in accordance with Chapter 553 and Chapter 633 of the Florida Statutes where applicable to concrete restoration. Approved, �\\Jl I I I 11/1/// 0 j - MAJP., V\G NS 8 TE OF Rk William J. Mathersc, P ....... Florida License #1965 //1 Special Inspector FL L cense M 2 4 lz—�—% AQ INTERNATIONAL I 1CR-I. I)- CONCRETE REPAIR I I N S T I T U T E About ICRI Guidelines The International Concrete RepairInstinue aCRI) wasfounded to improve the durability ofconcrete repair and enhance its valuefor structure owners. The identification, development, andpromotion of the most promising methods and materials are primary vehicles for accelerating advances in repair technology. Working through a variety of forums, 1CRI members have the opportunity to address these issues and to directly contribute to improving thepractice ofconcrete repair. A principal component of this effort is to make carefullyselectedinformation on important repair subjects readily accessible to decision makers. During the past several decades, much has been reported in the literature on concrete repair methods andinaterials as they have been developed and refined Nevertheless, it has been difficult to findcriticallymviewedinformalion on thestate Of the art condensed into easy-to-useformats. To that end, ICRI guidelines are prepared by sanctioned taskgroups andapprovedby Ihe1CRl TechnicalActivilies Committee. Each guideline is designed to address a specific area of practice recognized as essential to the achievement of durable repairs. A111CRrguideline documents are subject to continualreview by the membership and may be revised as approved by the Technical Activities Committee. Technical Activities Committee Kevin Michels, Chair Jim McDonald, Secretary Randy Beard Don Caple Bruce Collins William "Bud" Earley Don Ford Tim Gillespie Peter Golter Peter Lipphardt DavidRodler Michael Tabassi David Whitmore Pat Winkler Producers of this Guideline Surface Preparation Committee Pat Winkler, Chair* Dan Anagnos Randy Beard Bruce Collins William 'TuX'Earley PeterEmmons* Andrew Fulkerson Randy Glover Fred Goodwin* Kurt Gottinger Tyson Herman Dave Homerding Bob Johnson David Karins Ken Lozen* Jim McDonald Beth Newbold Jeffery Smith Sandra Sprouts Rick Toman Patrick Watson 'Coritributing editors 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 repair area, 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 are included. Keywords anodic ring effect, bonding, bruising, corrosion, delarnination, 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 professional engineer or designer of any responsibility for the specification of concrete repair methods, materials, or practices. 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 torely on all or any part of this guideline. 31OAR-2008 GUIDE FOR SURFACE PREPARMON FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION R AL CR TUAIR 'g, COTNU ;�E 8 I N S T I T U T 9 Contents 1.0 Introduction .............................................................................................................................. 1 2.0 Definitions ................................................. : ............................................................................. 1 3.0 Exposure of Reinforcing Steel .................................................................................................. 1 4.0 Anodic Ring (Halo) 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 Perimeter .................................................................................... 4 7.3 Cleaning of the Concrete Surface and Reinforcing Steel ..................................................... 4 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 ................................................................................................................................ 7 12.0 References ............................................................................................................................... 7 12.1 Referenced Standards and Reports .................................................................................... 7 GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION 310-1R-2008 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 caused by the corrosion of reinforcing steel, including the preparation of the 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 prior to performing concrete removal and repair. The repair methods involve saw cutting and concrete removal using impact tools, hydro demolition, and other removal techniques. Special caution should be taken to locate and avoid cutting 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 of columns where the concrete is in compression. Special consideration must 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 ascertain the applicability - of the procedures described herein. Refer to ACI 506R-05, "Guide to Shoterete"for surface prepar- ation prior to shoterete application. 2,0 Definitions Anodic ring effect: Corrosionprocess in which the steel reinforcement in the concrete surrounding a repaired area begins to corrode preferentially to the steel reinforcement in the newly repaired area (sometimes referred to as the halo effect). Bruised surface (micro -fracturing): A surface layer weakened by interconnected microcracks in concrete substrates caused by the use of high - impact, mechanical methods for concrete removal, and surface preparation; fractured layer A '."o I gg, 6 INTERNATIONAL —Mt %KCRID CONCRETE REPAIR WINSTITUTE typically extends to a depth of 0.13 to 0.38 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 of calcium ions in hardened cementitious 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 corrosion of the reinforcing steel. Chloride threshold: The amount of chloride required to initiate steel corrosion in reinforced concrete under 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. Microcrack: A crack too smalltobe seenwith the unaided eye. Tensile pulloff test: A test to determine the -unit stress, applied in direct tension, required to separate a hardened repair material from the existing concrete substrate. 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 (refer to ICRI Technical Guideline No. 210.3- 2004 [formerly No. 037391 and ASTM Cl 583). Substrate: The layer immediately under.a layer of different material to which it f s 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 The practice of completely removing the concrete (undercutting) from around the corroded reinforcement, no matter what degree of corrosion is found, is keyto achieving long-term performance of surface repairs. In most cases, complete Femovil of the concrete from around the reinforcing steel is the best practice, where protection of the reinforcing steel within the GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION 310JR-2008-1 I& AL dft t N S T I T U T C repair cavity is achieved by providing a uniform chemical environment around the reinforcing steel. If noncorroded 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 -contaminated concrete is susceptible to future accelerated corrosion. If, for structural reasons, the concrete cannot be completely removed from around the corroded reinforcing steel or if a corrosion inhibiting system is not used, the repairmay be compromised 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 of the 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. Othermeasures may also be considered, such as the application of sealers 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-term 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 horizontal, vertical, and/or overhead 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. Fig. 5. 1: Partia7 depth repair, slab or wall, section Fig. 5.2: Full depth repair, slab or wall, section ' ' 2-310.111-2008 GUIDE FDA SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION Fig. 5.3: Beam or rib repair, elevation Fig. 5A Beam or rib repaii; section Fig. 5.5: Column repair, elevation Fig. 5.6.- Column repair section I-L%Z dro-% INTCRNATIONAL ICRI CONCRETE REPAIR KQW I N S T I T U T E 6,0 Configuration of Repair Area Deteriorated and delaminated concrete should be located and marked prior to starting the removal process:Delarninated concrete can be located using sounding or other suitable techniques. The repair area should extend a minimum of 6 in. (152 nun) beyond the actual delaminated concrete. Note that during concrete removal, repair areas can grow in size beyond the areas identified due to incipient Aclaminations that are not readily identifiable by sounding. Repair configurations should be kept as simple as possible, preferably square or rectangular with square comers (Fig. 6.1). This may result in the removal of sound concrete. Reentrant comers should be minimized or avoided, as they are susceptible to cracking. Fig. 6 1: Areas ofdeterioration and recommended removal configurations 7.0 Concrete Removal/Surface Preparation 7.1 Exposing -and Undercutting of Reinforcing Steel Remove concrete from the marked areas and undercut exposed reinforcing steel (Fig. 7. 1) using impact breakers, hydrodemolition, or another suitable method. Undercutting will provide clearance under the reinforcing steel for cleaning and Rill bar 'circumference bonding to the repair material and the surrounding concrete. Bonding GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETER10RATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION 310.lR-2008-3 INTgRNATIONAL ,1CHA,0'C0HCRFTr REPAIR I N S 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 mm) clearance between exposed reinforcing steel and surrounding concrete or 0.25 in. (6 mm) larger than the coarse aggregate in the repair material, whichever is greater. Sound concrete may have to be removed to provide proper clearance around the reinforcing steel. If impact 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 uniform repair depth Fig. 7.2: Saw cutperimeter to provide vertical edge Fig. 7.3: Abrasive blasting to clean substrate and reinforcing to minimize damage to the substrate, reinforcing steel, and surrounding concrete. Concrete removal should extend along the reinforcing steel until There is no further delam- ination, cracking, or significant corrosion and the reinforcing steel is well bonded to the surrounding concrete. Care should be taken to avoid significant and sudden changes in the depth of concrete removal, as the repair material 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. 7.2) for the repair material. This will avoid featheredging of the repair material. Depending on the repair material selected, the depth of the existing reinforcing and the manufacturer's recommendations, a saw cut depth less than 0.75 in. (19 mm) 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 layer weakened by interconnected micro - cracks in the concrete substrate. The fractured (bruised) layer can extend to a depth of 0.125 to 0.375 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 loosely bonded concrete by oil -free abrasive blasting (Fig. 7.3) or high-pressure water blasting. The 4-310.lR-2008 GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRERE RESULTING FROM REINFORCING STEEL CORROSION saw -cut edge of the repair area should also be blasted to roughen the polished vertical surface caused by the saw -cutting. 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 diM 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 delarninations and deterioration have been removed. If hydro_ demolition is used, cement fines (slurry) must be completely removed from the repair surface. A tightly-bondedlightrustbuild-uponthereinforeing surface is usually not detrimental to bond. If a protective coating 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 of repair material. If reinforcing steel has lost cross -sectional area, a structural engineer should be consulted. Repair reinforcing steel by either replacing the INTERNATIONAL ikao!,h 114CRI CONCRETE REPAIR iI N S T I T U T K damaged/deteriorated steel or placing supple- mental reinforcing steel in the affected section (Fig. 8.1). Supplemental reinforcing steel may be lap -spliced or mechanically spliced to existing reinforcing steel. The supplemental reinforcing steel should extend (lap length) beyond the damaged/deteriorated area 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 repair cavity to verify that all bond - inhibiting materials (dirt, concrete slurry, loosely bonded aggregates, or any material that may interfere with the bond ofthe repair material 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 pulloff test (ICRI Technical Guideline No. 210.3-2004 or ASTM C1583) should be considered to evaluate thebond strength capacity andtensile strengthof the existing concrete substrate. This test may also 'be performed after the repair is complete. The pulloff strength requirement should be established by the engineer and included as a performance specification for the repair. Affected Length Loss of Cross Section 70i P LIM ; �' "I Required Lap Supplemental Bar .k5ected Fig. 8. 1: R ep a ir of dam age d1de teri orate d re inforc i ng Required Lap GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION 310JR-2008-5 I N S T I T U 7 E 6 10.0 Special Condition at Columns 2 2- X N �Ar 'g 3�1. yq . . . . . . . . . . . . . . . . Fig. 10. 1: Column loadpath Fig. 10.2a: Column repair Fig. 10.3: Column load pathfollawing repair Fie.,.10,2b.- Cplumn iection 6-310.IR-2008 GUIDE FOR SURFACE PREPARA11ON FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION — I 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 ofthe reinforcement is considered as protective concrete cover for fire 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). Depending on the size of the concrete removal area behind the column steel, buckling of the column vertical reinforcing bars 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 drying shrinkage, which results in the new material being put into a tensile stress state. The new material will not carry compressive loads until the original concrete compresses further, forcing the repair material into compression. If further compression is beyond the capacity of the 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 a normal 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 bar 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 repairsto preventdisplacements and corresponding stress redistributions during repairs. - JNTERNATIONA� ICIAI CONCRETE REPAIR I N S T I T U T a 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 of corrosion 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 firture deterioration. 12,0 "Fileferences 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 are 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 (Act) ACI 506R, "Guide to Shotcrete" ACI E706 (RAP 8), "Installation of Embedded Galvanic Anodes" American Society for Testing and Materials (ASTM International) ASTM CI 583, "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 (IGRI) ICRI Concrete Repair Terminology ICRI Technical Guideline No. 130.IR-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" GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OF DETERIORATED CONCRETE RESULTING FROM REINFORCING STEEL CORROSION 310JR-2008-7 iNTERNATIONAL 1011CRflp. CONCRETE REPAIR %lime , N S T I T U T E ICRI Technical Guideline No. 310.3-2004 (formerly No. 03737), "Guide for the Preparation of Concrete Surfaces for Repair Using Hydro - demolition Methods" ICRI Technical Guideline No. 320.2R-2008 (formerly No. 03733), "Guide for Selecting and Specifying -Materials for Repair of Concrete Surfaces" These publications may be obtained from these organizations: American Concrete Institute 38800 Country Club Drive Farmington Hills, MI 48331 www.conerete.org ASTM International 100 Barr Harbor Drive West Conshohocken, PA 19428 w,,�wastm.org International Concrete Repair Institute 3166 S. River Road, Suite 132 Des Plaines, IL 60018 www.icri.org 8-310AR-2008 GUIDE FOR SURFACE PREPARATION FOR THE REPAIR OFDETER[ORATED CONCRETE RESU[JING FROM REINFORCING STEEL CORROSION , Product Data Shoot Edition 7.14.2014 SikacreteO 211 Macrete" 211 One -component, cementitious, pumpable and pourable concrete mix Description SikacreteO 211 is a 1-component, portland-cement concrete Containing factory blended coarse aggregate. Where to Use u Full depth repairs. n On grade, above, and below grade on concrete. n On horizontal, vertical and overhead surfaces. m As a structural repair material for parking facilifies, industrial plants, walkways, bridges, tunnels, dams and balconies. in Filler for voids and cavities. Advantages m Pre -packaged coarse aggregate: Eliminates need to extend material in the field; Elimi- nates the risk of reactive aggregate. • High bond strength. • Compatible with coefficient of thermal expansion of concrete. • Increased resistance to deicing salts. • Simple -to -use labor-saving system. • Easily mixed. • Good freeze/thaw resistance. • Easily applied to clean, sound substrate. • Not a vapor barrier. • Notflammable Coverage Approximately 0.65 ft.3/unit PRTOR-rO-EACH USE OF ANY SIKA PKUUUGT, THE USER MUST ALWAYS READ AND FOLLOW THE WAKNINUS NU INSTRUCTIONS ON THE PRODUCTS MOST CURRENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET WHICH ARE AVAILABLE ONLINE AT HTTPJIUSA . SIKA.COMJ OR BY CALLING SIKAS TECHNICAL SERVICE DE- PARTMENTAT800.933.7452 NOTHING CONTAINED IN ANY SIKA MATERIALS RELIEVES THE USER OF THE OBLICATION TO READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCT AS SET FORTH IN THE CUR. RENT PRODUCT DATA SHEET. PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. APIJU How to Use Substrate Concrete, mortar, and masonry products. Surface Preparation Concrete: Remove all deteriorated concrete, dirt, oil, grease, and all bond -inhibiting materials from surface. Be sure repair area is not less than 1 in. in depth. Preparation work should be done by high pressure water blast, scabbler, or other appropriate mechanical means to obtain an exposed aggregate surface with a minimum surface profile of ±11/8 in. (CSP-7). Saturate surface with clean water. Substrate should be saturated surface dry (SSD) with no standing water during application. Reinforcing Steel: Steel reinforcement should be thoroughly prepared by mechanical cleaning to remove all traces of rust. Where corrosion has occurred due to the presence of chlorides, the steel should be high-pressure washed With clean water after mechanical cleaning. Forpriming of reinforcing steel use Silka"Armatec" 110 EpoCem (consult TechEical Data Sheet). Priming Forpriming of reinforcing steel use Sikae'ArmatecP 110 EpoGem (consult Technical Data Sheet). Mixing Place 4/5 of I gallon water in mixing container. Add Sikacrete" 211 while continuing to mix. Add additional water up to 1 gallon total. Mix to a uniform consistency, maximum 3 minutes. Mechanically mixvVith a low -speed drill (400-600 rpm) and paddle orin appropriate size mortar mixer or concrete mixer. Application Form and pour or pump applications: Pre -wet surface to SSD. Ensure good intimate con- tact with the substrate is achieved. To accomplish this, material should be scrubbed into the substrate or other suitable means should be employed such as vibration of the material or pumping under pressure. Vibrate form while pouring or pumping. Pump with a variable pres- sure pump. Continue pumping until a 3 to 5 psi increase in normal line pressure is evident then STOP pumping. Form should not defleGt. Vent to be capped when steady flow is evident, and forms strip when appropriate. Tooling & finishing -ad As per ACI recommendations for portland cement concrete, curing is required. Moist cure with wet burlap and polyethylene, a fine mist of water or a water based* compatible curing compound. Curing compounds adversely affect the adhesion of following layers of mortar, leveling mortar or protective coatings. Moist curing should commence immediately after fin- ishing. Protect newly applied material from direct sunlight, wind, rain and frost. Limitations is Application thickness: Minimum I in. (25 mm); Maximum 8 in. (200 mm) • Minimum ambient and surface temperatures 45'F (7'C) and rising at time of application. • Using Sikal-atexe, Sikal-ateX" R or similar products will result in loss of slump and slump retention. �ield tests for suitability are strongly recommended. PRIOR iOEACH UbEUe ANY SIKA PRODUCT, THE USER MUS I ALWAYS HEAD AND FOLLOW THE WARNIN&S—M INSTRUCTIONS ON THE PRODUCT'S MOST CURRE14T PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET WHICH ARE AVAILABLE ONLINE AT HTTP;11USA.SIKA.COMj OR BY CALLING SIKAS TECHNICAL SERVICE DE- PARTMENTATS00.933.7462 NOTHING CONTAINED IN ANYSIKA MATERIALS RELIEVES THE USER OF THE OBLIGATION TO READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCTAS SET FORTH IN THE CUR- RENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. 1(EEP CONIAINMIRGMYCLOSED. K9W OW OFRIACH OF CRIUDREN.NOTFORINTERRAL CONZAHU'llION. FORINDUSTRIALUSEONLY. FOR PROFESSIONAL USEONLY. For further Information and advice regarding transportallon, handling, storage and disposal of chemical products, users should refer to the actual Safety Data Sheets containing physical, ecological, toxicological and oignersafety related data. Read Me current actual Safety Data Sheet before using the product. In case of emergency, call CHEMTREC at 1800�4300, Intermlional 703-52741887. Fdorta each use of amr Slka maduct. the user must .1.ays,ead and follow the warnings and Instructions an the pmducVs most current Producl: mentatIM0,5 for ... h Slka pmduct use. the label defects ARE SUBJECT SIKA'S TERMS AND CONDITIONS OF SALE AVAILABLE AT HTrP:11USA.SII(A.COMI OR By CALLING 201-933-81111D. Visit our website at usa.sixa.com 1-800-933-SIKA NATIONWIDE Regional Information and Sales Centom. For the location of your neareatSlka sales office, contact your regional center. Slim Corporation 201 Polito Avenue Slim Canada Inc. 601 DelmarAvenue Sika M..i.ana S.A. do C.V. Cannetem Litere Celaya Kra. 8.5 Lyndhurst. NJ 07D71 Point. Clalre Fraw. Industrial Balvanera Phone: 800�933-7452 Quebec HOR 4A9 Corregicom, Queretaro RESMISI't��R Fax: 201-933-6225 Phone: 514-697-2610 C.P. 76920 Fax: 51�694-2792 Phone: 52 442 2385800 SIM and Sifluncle am registered Fax. 52 442 225(1537 tradernexa. Printed In Canada. Product Data Sheet Edition 7.15.2014 SikaTopP 123 Plus SikaTop" 123 PLUS Two -component, polymer-hicidified, cementitious, non -sag mortar plus FerroGard 901 penetrating corrosion inhibitor Description SikaTbpP 123 PLUS is a two -component, polymer -modified, portland cement, fast -setting, non -sag mortar. It is a high performance repair mortar for vertical and overhead surfaces, and offers the additional benefit of FermGard0 901, a penetrating corrosion Inhibitor. Where to Use m On grade, above, and below grade an concrete and mortar. a On vertical and overhead su�faces. u As a structural repair material for parking structures, Industrial plants, waterAvaste water treatment feel[! - ties, roads, walkways, bridges, tunnels, dams, ramps, etc. n Approved for repairs over cathodic protection systems. Advantages m High compressive and flexural strengths. u High early strengths. a Increased freezeithaw durability and resistance to de-icing salts. w Compatible with coefficlent of theme] expansion of concrete - Passes ASTM C-8114 (modified). x Increased density - Improved carbon dioxide resistance (carbonation) without adversely affecting water vapor transmission (not a vapor barrier). m Enhanced with FermGard9 001, a penetrating corrosion Inhibitor - reduces corrosion even in the adja- cent concrete. n Not flammable, non -toxic. n Conforms to ECAIUSPHS standards for surface contact with potable water. u USDA certifiable for incidental food contact. m ANSIINSF Standard 61 potable water approved. 0.39 cu. ft./unit Packaging ComponentN - 1 gal. plastic jug; 41carton. Component '13' - 44 111. multi -wall bag. FMORM-UCH USE orAN73W IT AUIMS READ AND FOLLUW I ht KNII U� INSTRUCTIONS ON THE PRODUCTS MOST CURRENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET WHICH ARE AVAILABLE ONLINE AT HTTP:11USA.SIKA.CONI1 OR BY CALLING SIKKS TECHNICAL SERVICE DE- PARTMENTAT 800.933.7452 NOTHING CONTAINED INIANY SIKA MATERIALS RELIEVES THE USER OF THE OBLIGATION TO READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCTAS SET FORTH IN THE CUR- RENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. A110 Concrete, mortar, and masonry products. ration Concreteffillortar; Remove all deteriorated concrete. dirt, oil, grease, and all bond-inhlbiting materials from surface. Be sure repair area is not less than 1/8 inch In depth. Preparation work should be done by high pres- sure water blast, scabbler, or other appropriate mechanical means to obtain an exposed aggregate surface with a minitrium surface profile of :0/16 in. (CSP-5) Saturate surface with clean water. Substrate should be saturated surface dry (SSD) with no standing water during application. Reinforcing Steel: Steel reinforcement should be thoroughly prepared by mechanical cleaning to remove all traces ofrust.Where corrosion has occurred clueto the presence of chlorides, the steel should be high-pressure washed with clean water after mechanical cleaning. For priming of reinforcing steel use Sika8 Armatec" 110 EpoCem (consult Technical Data Sheet). Concrete Substrate: Prime the prepared substrate with a brush or sprayed applied Coat of SikaO Amnatec 0110 EpoCem (consult Technical Data Sheet). Alternately, a scrub coat of Slka Top 123 can be applied pit or to placement of the mortar. The repair mortar has to be applied Into the wet scrub coat before it dries. Pour Component'N into mixing container. A omponent'B'while mixing continuously. Mix mechanicallywith a low -speed drill (400 - 600 rpm) and mixing paddle or mortar mixer. Mix to a uniform consistency, maximum 3 minutes. Manual mixing can be tolerated only for less than a full unit. Thorough mixing and proper proportion- Ing of the two components Is necessary. SikaTbp9 123 PLUS must be scrubbed into the substrate, filling all pores and voids. Force material against edge of repair, working toward center. After filling repair, consolidate, then screed. Material may be applied in multiple lifts. The thickness of each lift, not to be less than 118 inch minimum or more than 1.5 inches maximum. Mere multiple lifts are required score top surface of each lift to produce a roughened surface for next lift. Allow preceding lift to reach final set, 30 minutes minimum, before applying fresh material. Saturate surface of the lift with clean water. Scrub fresh mortar into preceding lift. Allow mortar or concrete to set to desired stiffness, then finish with wood or sponge float for a smooth surface. shing As per ACI recommendations for portland cement concrete, curing Is required. Moist cure with wet burlap and polyethylene, a fine mist of water or a water based*, compatible curing compound. Curing compounds adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings. Moist curing should commence immediately after finishing. If necessary protect newly applied material from direct sunlight, wind, rain and frost. 'Pretecuing of curing compound is recommended. a Application thickness: Minimum 1/8 inch (3 mm). Maximum in one lift - 1.5 in. (38 mm). at Minimum ambient and surface temperatures 45'F (7*C) and rising at time of application. • Do not use solvent -based curing compound. • Size, shape and depth of repair must be carefully considered and consistent with practices recommended by ACI. For additional information, contact Technical Service. • For additional information an substrate preparation, refer to I CRI Guideline N o. 03732 Coatings, and Polymer Overlays". at If aggressive meal ns of substrate preparation is employed, substrate strength should be tested in accord ance with ACI 503 Appendix A prior to the repair application. , at As with all cement based materials, avoid contact with aluminum to prevent adverse chemical reaction and possible product failure. Insulate potential areas of contact by coating aluminum bars, rails, posts etc. with an appropriate epoxy such as Sikadur" Hi -Mod 32. RIOR TO EACH USE U USER MUS r ALWAYS READ AND FOLLOW THE WARNINUb ANU INSTRUCTIONS ON THE PRODUCT'S MOST CURRENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA " HEET WHICH ARE AVAILABLE ONLINE AT HTTP:11USA;SIKA-COMf OR By CALLING SIKAS TECHNICAL SERVICE DE. PARTMENTAT 800.933.7452 NOTHING CONTAINED IN ANY SIKA MATERIALS RELIEVES THE USER OF THE OBLIGATION Is 0 READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCTAS SET FORTH IN THE CUR- RENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. �CoN,ursNTjGlmy CLOSS). KEeP OUT OF11EACH OF Cliff-DREN. NOT FORINDUCKiLCONSUM"ON.FORINDUMIALLSE ONLY. FORPROFMIUML ust um" For further Information and advice regarding tronsporartlon, handling, storage and disposal of chemical produces, users should refer to are actual Safety Data Sheeler containing physical, ecological, toxicological and other safety related d.ta. Read th..untent actual Safety Data Sheet before using the product In case of emergency, call CH EMTREC it 141OD42�9300, international 703-5274ffI37. j�_,'e'acWjfka__F;ngfud as set F.Ah In me current Product Data Sheet, product product use. Regional Infonnation and Sales Centers. For the location of your nearest Ski sales ounce, comacs your negnolun wrlial. ago, carporathan Slim Canada Inc. area Mexicans SA. de C.V. as, 201 Polito Avenue 601 DelmarAvenue Cameters, Libra Celaya Kim. 8.5 Lyndhurst, NJ 07071 Points Claim Fracc. Industrial Balvanera led Phone: 800-933-7452 Quebec HOR 4A9 Conegid.m. Queretaro ar�.Vce. Fron. 201-933-6225 Phone: 514-697-2610 C.P. 76920 -- - ----- Fmc 514-694-2792 Phone: 52 442 238580D Sin,a, Armate, SikaTop. and F..Gam are regislared Far. 52 442 2250537 nde.eft Pmrned in Canada. Product Data Sheet Edition 1.26.2017 Sika-ArmatecP 110 EpoCem SikaO Armatec' I 10 EpoCem Bonding Agent and Reinforcement Protection SikaOArmatecP 1`10 EpoCem is a 3-componeni, solvent4ree, moisture-ioieram, epoxy-liluull—, product specifically formulated as a bonding agent and anti-COrrOsiOn coating. Where to Use a As an anti -corrosion coating for reinforcing at el in concrete restoration. m As added protection to reinforeing steel in areas of thin concrete cover. x As a bonding agent for repairs to concrete and steel. n As a bonding agent for placing fresh, plastic concrete to existing hardened concrete. Advantages a Excellent adhesion to concrete and steel. m Acts as an effective barrier against penetration of water and chlorides. m Long open time - up to 16 hours. z Not a vapor barrier. w Can be used exterior on -grade. w Contains corrosion Inhibitors. n Excellent bonding bridge for cement or epoxy based repair mortars. w High strength, unaffected by moisture when cured. m Spray, brush or roller application. n Non-flammable, solvent free. Coverage Bonding agent: minimum (theoretical) an smooth, en substrate 80 ft.2/gal. (=20 mils thickness). Coverage will vary depending on substrate profile and porosity. Reinforcement Protection: 40 ft.2/gal. (=20 mils thickness) (2 coat application). Packaging 3.5 gal. unit. (47.6 fi. oz. Comp. A+ 122.1 fl. oz. Comp. B + 46.82 lb. L;omp. u) Comp. A+ B in carton, Comp. C in multi -wall bag. 1.66 gal. unit. (22.7 fi. oz. A + 57.6 fl. oz. B + 4 bags @ 5.5 lb.) Factory -proportioned units in a pall. W I! 1,16F.; TO EXUR 1:131; al! 1311 i; ; ji�!� lillyli 1�11 , INSTRUCTIONS ON THEPRODUCT'S MOST CURRENT PRODUCT DATA SHEET PRODUCT LASEL AND SAFETY DATA SHEET WHICH ARE AVAILABLE ONLINE AT HTTP:11USA.SIKA.COM1 OR BY CALLING SIKAS TECHNICAL SERVICE DE- PARTMENT AT 800.933.7452 NOTHING CONTAINED IN ANY SIKA MATERIALS RELIEVES THE USER OF THE OBLIGATION TO READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCT AS SET FORT" IN THE CUR - !RENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. ration Cementitious substrates: Should be cleaned and prepared to achieve a laitance and contaminant -free surface prepared in accordance with the requirements specified by the overlay or repair material by blast cleaning or equivalent mechanical means. Substrate must be saturated surface dry (SSD) with no standing water. Steel: Should be fully exposed and have all corrosion removed by blast cleaning or other means of mechanical Shake contents of both Component 'A and Component'B'. Empty entire contents of both Component'A: and Component 'B'Into a clean, dry mixing pall. Mix thoroughly for 30 seconds with a Sika paddle on a low speed (400-600 rpm) drill. Slowly add the entire contents of Component'C'while continuing to mix for 3 minutes until blend is uniform and free of lumps. Mix only that quantity that can be applied within its pot life. Asa bonding agent -Apply by stiff -bristle br sh or broom. Spray apply with Goldblatt Pattern Pistol or equal equipment. For best results, work the bonding slurry well into the substrate to ensure complete coverage of all surface irregularities. Apply the freshly mixed patching mortar or concrete wet on wet, or up to the maximum recommended open time, onto the bonding slurry. Maximum recommended open time between application of Amrateclf 110 and patching mortar or concrete: 80'-95-F (26�35'C) 6 hours 66'-79-F (18'-26-C) 12 hours 50--64�F (1 0'-17'C) 16 hours 40'-49-F (4--g-C) wet -on -wet For corrosion protection only -Apply by stiff -bristle brush or spray at 80 V/gal. (20 mils). Take special care to properly mat the underside of the totally exposed steel. Allow coating to dry 2-3 hours at 73*17, then apply a second coat at the same coverage. Allow to dry again before the repair mortar or concrete is applied. Pour or place repair within 7 days. is Substrate and ambient temperature: minimum 40*F (5'C). is Maximum 95*F (35*C). in Minimum thickness: As a bonding agent 20 trills. in For reinforcement protection 40 mils. is (2 coats, 20 mits each). at Not recommended for use with expansive grouts. at Use of semi -dry mortars onto Sikae Affirratece 110 EpoCern must be applied'Wet an wet". in When used in overhead applications with hand placed patching mortars, use "wet on wet" for maximum mortar built thickness. sa Substrate profile as specified by the overlay or repair material is still required. at As with all Cement based Materials, avoid contact with aluminum to prevent adverse chemical reaction and possible product failure. Insulate potential areas of contact by coating aluminum bars, rails, posts etc. with an appropriate epoxy such as Sikadure Hi -Mod 32. 1515 F! F5 I orl: 1!: 1 � :!I ! ofir; !:I zx in iii izrl: irlill Ig : ! !:; i �� I ��i: �!� jll��!�if!: - IN;�RiUCTIINS' ONTHE PRODUCT'S MOST CURRENT PRODUCT DATA SHEET. PRODUCT LABEL AND SAFETY DATA "' HEET WHICH ARE AVAILABLE ONLINE AT HTTP:iIUSA.SIKA.COW OR BY CALLING SIKXS TECHNICAL SERVICE DE- ARTMENTAT 800.933.7492 NOTHING CONTAINED IN ANY SIKA MATERIALS RELIEVES THE USER OF THE OBLIGATION P 0 READ AND FOLLOW THE WARNINGS AND INSTRUCTIONS FOR EACH SIKA PRODUCT AS SET FORTH IN THE CUR- FlENT PRODUCT DATA SHEET, PRODUCT LABEL AND SAFETY DATA SHEET PRIOR TO PRODUCT USE. KEEP COWANMUGHTly CI_OSM KEEP Our Of RUCH OF CHILDREN.NOTFORINTURNALCONSIMAPTON.FOR INDUSTH.L.Lic For further information and advice regarding transportation, handling, storage and disposal of chemical products, users should mfer to the actual Safety Data Sheets containing physical, ecological. toxicological and other safety related data. Read the current actual Safety Data Sheet before using the product. 1. case of emergency, Call CHEMTREC at 1-80"24-9300, International 703.527-38117. —.d —d faflasmthavearninnis and Instructlims on me product's Most current Pmdud Data product use. ,�;;Jnjj�;;j.��6jja Sheet, product label and Safety Data Sheet prior to = �� " ' '- - — - ... �E_j�q;JLASLS AT HTTP:11USA.SIKA.COM/ OR BY TERMS AND CONDITIONS OF SA Regional information and Sales Centers. For the location ofyour nearest Sika sales office, wntactyour regional center. alien Corporation 201 P.IiloAvemle Sika Canada Inc. 601 DelmarAvenue Slka Mexicans S.A. do C.V. Calratem Ubm Celaya Km. 8.5 BSI Lyndhurst. NJ 07071 Pointe Claim Fracc. Indusbial Balvanere, Phone: 800-933-7452 Quebec H9R 4A9 Cortegidom, Queretaro Fax: 201�93M225 Phone: 514-697-2610 C.P. 7692U Far. 51�694-2792 Phone: 52 442 2385800 stio2rdArmatecons tagistemil Few. 52 442 2250537 trad.reeks. Prirt.d in Ccr.da. Product Data Sheet Edition 5.5.2011 Sika FerroGard §03 FerroGar& Penetrating, corrosic coatina for hardened impregnation Description Sika FerroGard 903 Is a corrosion inhibiting Impregnation coating for hardened concrete surfaces. it is designed to penetrate the surface and then to diffuse in vapor or liquid form to the steel reinforcing bars embedded in the concrete. Sika FerroGard 903 forms a protective layer on the steel surface which Inhibits corrosion caused by the presence of chlorides as well as by carbonation of concrete. I How it Works Slka FerroGard 903 is a combination of amino alcohols, and organic and Inorganic inhibitors that protects both the anodic and cathodic parts of the corrosion call. This dual acton effect dramatically delays the initia- tion of corrosion and greatly reduces the overall corrosion activity. Sika FerroGard 903 protects the embedded steel by depositing a physical barrier in the form of a proteclive layer on the surface of the steel reinforcement. This barrier inhibits corrosion of the steel. Where to use Slka FerroGard 903 Is recommended for all steel -reinforced, prestressed, precast, post tensioned or marine concrete. Use of Sika FerroGard 903: • Steel -reinforced concrete, bridges and highmys exposed to corrosive environments (deidng salts, weathering) • Building facades and balconies • Steel -reinforced concrete in or near a marine environment • Parking garages • Piers, piles, and concrete dock structures corrosion inhibition that can easily be applied to the surface of existing concrete to extend the service life of any reinforced concrete structure. • Protects against the harmful effects of corrosion by penetrating the surface of even the most dense con- crete and diffusing to the steel to inhibit corrosion. • Enhances the durability of reinforced concrete. • Does not require concrete removal. • Environmentally sound. • Does not contain calcium nitrite. • Easily applied by either spray or roller to all exisfing reinforced concrete. • Can be applied to reinforced concrete that already exhibits corrosion. • Adds additional benefits when used prior to protective coatings in concrete restoration systems. • Water based for easy handling and application. • Not a vapor barrier, allows vapor diffusion. • FerroGard has been proven effective in both laboratory (ASTM G1 091Cracked Beams) and field analysis. • ANSIINSF Standard 61 potable water approved Coverage For normal concrete, application is 200 ft.2/gal. each coat. A minimum of two coats is always recommended. For dense concrete, applicallon may exceed 300 ft.2/gal. Therefore, more than two coats may be required to achieve the total application rate: 100 f0gal. Packaging 5 gallon pails with spout, 55 gallon drums. ig Sika FerroGard 903 be sure the surface Is clean and sound. Remove all dirt, dust, c !scence or exisUng coatings from concrete surface by steam cleaning, waterblasting o Allow concrete surface to dry prior to application of Sika FerroGard 903. The dryer the penetration and effectiveness. C o mop I q n �l n h t iti ar ibiltain "T� rz Tig , of Oauce T'9tccmrca! 'o emus'66mi6l;sPecimen iifteir�vyea�."," ar '�03�oe'r�4U�ii�s'indepand'�nti� , '-Ie'6f IF K"� e I_ de'n 4*cio" "P, ',7 1 hi 11' n— Ini sq. s� c msluu;' I 1G "as! Osplaeoment,bf cfil6riaes*6 ld�903'foimi ai;6ontI6V6ua�l`iIFn a Kfit", a 0 4afacl �nd.d6pIaces_chImfde4 ons-.,� f 'T cor6srb� Rake'�Ejad,,,Monitonrm 65�b.'. !A Test Methodlinstitute: 1 . Cracked Concrete Beam Test (adapted from ASTM GI 09). 2. Secondary Neutron Mass Spectroscopy (SNMS) I Institute for Radiochemistry Karlsruhe (Germany). Prof. Dr. J. Goschnick. 3. X-ray Photon Spectroscopy (XPS) and Secondary [on Mass Spectroscopy (SIMS) / Brundle and Associ- ates. San Jose, CA and University Heidelberg (Germany), Prof. M. Grunze. 4. Performance of Corrosion Inhibitors in Practice, Graeme Jones, C-Probe Technologies Ltd., 2000. Application Sika FerroGard 903 is applied by roller, brush or spray on concrete surfaces. When spraying, use a conven- flonal alidess spray system or hand -pressure equipment. A minimum of two coats Is always recommend. ad. Dense substrates may require more coats. Waiting time between coats of Sika FenroGard 903 is at least I hour. Allow a minimum of one day to allow Slka FemoGarcl 903 to dry and penetrate. When Slka FerroGard 903 is used prior to the application of a repair mortar, concrete overlay, protective coating, Sikafloor system or any other application, care must be taken to remove any residue remaining on the surface from the application of Slka FemoGarcl 903. Clean the substrate in such a manner O.e. push the water in one direction away and off from the surface to be overcoated) to completely remove any residue. Horizontal surfaces require pressure washing (2,000 psi minimum) to remove the residue. Vertical surfaces may be rinsed with water or pressure washed. The use of Slka Amnatec 110 EpoCenn as a bonding agent prior to the application of repair mortars or concrete overlays is suggested. Drying times depend on enVi- ronmental conditions, absorbency of the substrate and maximum recommended moisture content for the • Do not apply when temperature is expected to fall below 36*FWthin 12 hours. • If the applied surfaces will be submerged after the application of Slka FemoGard 903, a waterproofing coating must be applied prior to submersion. • Substrate should be as dry as possible prior to the application. • Protect glass, wood, brick, galvanized steel, copper and exposed aluminum during the application. • Maximum chloride content of concrete structures intended to be treated with Sika FerroGard 903 is 6 lbsJy3 (measured at the level of the reinforcing steel). For levels up to 10 Ibs.1y3. consult technical service. Caution Irritant -Skin and eye Irritant. Vapors may cause respiratory tract irritation. Use only with adequate ventila- tion. Use of safety goggles and chemical resistant gloves is recommended. Remove contaminated cloth- ing. First Aid In case of skin contact, wash thoroughly with soap and water. For eye contact, flush immediately with plenty of water for at least 15 minutes; contact physician immediately. For respiratory problems, remove person to fresh air. Wash clothing before re -use. Clean Up In case of spills or leaks, wear suitable protective equipment, contain spill, collect with absorbent material, and transfer to a suitable Container. Ventilate area. Avoid contact. Dispose of in accordance with current, applicable local, state, and federal regulations. UMITED WARRANTY�. Silas warrants this product for one year from date of Installation to be free technIcal propertles on the cument Technical Data Sheet if used as directed VAthln shelf life. User .n. and .�..nnes all risks. Bmers sole remedy shall be limited to the purchase price or replacemen Regional information and Sales Centers. For the location of your nearest Silm sales office, cents Slka Corporation Slka Canada Inc. Slka Mexicans SA. do C.V. 201 Polito Avenue 601 DelmarAvenue Carretera Ubre Celaya Kra. 8.5 Lyndhumt, NJ 07071 Pointe Claire Fracc. Industrial Balvanera Phone: 80IW33-7452 Quebec H9R 4A9 Conegiclom, Queretaro Fmc 201-933-6225 Phone: 514-697-2610 C.P. 7692a Fanc 514-694-2792 Phone: 52 442 2385800 Far. 52 442 2250537 defects and to meet ct your regional center. ted BSI 0 a Mika and Fem,Gand am me Printed In Canada. Product Data Sheet Edition 5.3.2011 - Sikagard 701W SlkagardO 701W Solvent -free, siloxane emulsion concentrate Description Sikagard 701W is a solvent -free concentrate of silane modified siloxane emulsion. When di- luted, the liquid forms a water and chlodde-lon repellent impregnation specifically formulated to seal absorbent cementitious surfaces and other masonry substrates. Where to Use u When diluted, use Sikagard 70IW as a colorless, non -vapor -barrier, water and chloride ion -repellent impregnation for absorbent materials. x Treat concrete bridges, roadways, runways, parapet walls, precast, beams, columns, curbing, retaining walls, pavers, etc. m Treat both new and existing structures. x Treat masonry brickwork, stucco, etc. m Porous architectural curtainwall panels. x Use on steel-reinf9rced structures to reduce the corrosion and latent damage potential of chlorides. Advantages Sikagard 701W is both an economical and simple -to -use sealer. Because of its unique ability to decrease water and chloride intrusion, Sikagard 701W helps reduce the danger of rebar corrosion. Sikagard 701W., • Meets the standards of acceptability for concrete sealers established in NCHRP Report#244. • Enhances concrete integrity. • Reduces efflorescence. • Improves resistance to frost and deicing salts (chloride ion). • Reduces dirt penetration. • Does not act as a vapor barrier. • May be applied to alkaline substrates. Will not degrade under UV exposure. Coverage i00-250 sq. ft./gal., (diluted concentrate) depending on porosity of substrate. For proven results against chloride -ion intrusion, 125 sq. ft./gal. is recommended. Packaging 5 gal. pail. A300 How to Use Surface Preparation Before applying Sikbgard 701W, be sure surface is clean and sound. The best impregna- tion is achieved on a dry, very absorbent substrate. Remove all grease, curing compounds, surface treatments, coating, oils, etc. Preparation Work: Concrete and masonry surfaces, sandblast, high pressure water blast or use other mechanical means. Mixing Dilute Sikagard 701W concentrate with tap water in an appropriately sized mixing container. Mix with a low speed (400-600 rpm) drill with Sika paddle or comparable drum mixer until unifo . rmly blended. Make sure paddle is completely covered so as not to entrain air. For best results, Sikagard 701W should be remixed if unused 24 hours after blending with water. Application Apply by roller, brush (horizontal surfaces), or spray. Any pooling of water repellent indicates overdosing on a dense substrate while rapid absorption indicates a porous substrate. Varia- tioni in concentration down to 8:1 for dense substrates or coverage area, and/or multiple wet -on -wet applications for porous substrates may be utilized to achieve optimal substrate treatment. Preliminary site test application is recommended to determine effective coverage and performance. Maximum water repellency is generally realized in 72 hours, but may take longer depending on surface and atmospheric conditions. Limitations a Adjacent surfaces such.as window frames, glass, stainless steel, aluminum, etc., must be masked before application. n Do not apply at a temperature below 40*F. x Do not apply when substrate temperature exceeds 120*17. w Material is not recommended for below -grade waterproofing. w Do not apply through standing water. In Material is not intended to seal visible cracks or crevices from moisture intrusion. • Material is not intended for waterproofing under hydrostatic pressure. • Performance and penetration depth are dependent upon the surface composition. • Do not use on green concrete. • When overcoating: an on -site adhesion test is essential to determine actual compatibility. • Sikagard 701W is not a carbonation barrier. Caution Warning Irritant; May cause skin/eye/respiratory irritation. Avoid prolonged contact. Use of safety goggles and chemical resistant gloves is recommended. In case of FELS are exceeded, use an appropriate, properly fitted NICISH approved respirator. Remove.contaminated clothing. FirstAld In case of skin contact, wash immediately and thoroughly with soap and water. If symp- toms persist, consult a physician. For respiratory problems, remove person to fresh air if symptoms persist, contact a physician. In case of ingestion, dilute with water and consult a physician. Remove contaminated clothing. contain spill, collect with absor- Clean Up In case of spills or leaks, wear suitable protective equipment, bent material, and transfer to suitable Container. Ventilate area. Avoid contact. Dispose of in accordance with current, applicable local, state, and federal regulations. Uncured material can be removed with water. KEEP omiriMNERTIGHTLYCLOSED - KEEP OW OF REACH OF CHILDREN -NOT FOR INTERNAL CONSUMPTION -FOR All Informatlonprovided by Sika Corporation (-Siks') conn,aming Sika products, induding but not limited to. any racommen appli,ation andi use ofSjka products, is given in goodfaith based on Sikas cumentexperience and Mmledge of its prodw and applied underromnal conditions In accordance with Silms Instructions. inpmetm,th.,Ultemnmsinmatedes,.Ubst tons, actual sits conditions and other factors outside of Glka's control am such that Sim assurnes no liability for Me prov recommendatons a instnuflons related to its products, nor shall any legal relationship be created by or admB from the pn� .=.�atons�ins�d.mrelsWdtoiNpmduas. The user of the SIM PrOduct(s) must test Me product(s) for suiti and purpose before Proceeding with the full apprication of the product(s). Sim reserves the right to change Me PmPem Ad] sales of Ske producti(s) am subject to its current terms and conditions of sale which am available at wwrPstilkausm. I fallowthe warnings and Instructions on the pr am' gs n"ne 8' 5 a d nd wits d o" �2 a ratio 3m Hals vas a' 'way I as n d a rmu is M Dam Shed 'ch are a- Q rous no u us� I Is rall. P "'oeochu 0a y ses P I and ate a' a D S'0e `smd� a'O45 Nothing "."Ted 1. any S hm . a S ,an a 9aa_7 . _to �h S im Prod. an n u ntlrb�h I at. twe" pr U. W 0 7 rm y.. from data of IneVa". I-ap on for I L ch W N St warrants 'his pro,.' I. if d a directed Ilhl. he INg ' PrAR - 1.1 Data She., a. a 1.1 P.,.s on he ourrant Ta hn I b Ii 1jed to in P�rchgs. r ce us. and as.. an risks auy.r. a. . hsm.dy� hal . m joetprortoproductuse. defects and to meet me r of product for Intended of labor or cost of labor. "... our .1 - - r ... Regional Information and Sales Centers. For the location of your nearest Silka sales OMW, contact your negilonal center. Slka Corporation 201 Porto Avenue Silos Canada Inc 601 D�ClrnarAvQ. Sint Mexicans S.A. de C.V. Camale, Ulbre Celay'a KM. 8.5 am o 0 Lyndhurst, NJ 07071 Polm. lairs FrOM InduSbial Salvanera Phone: 800-933-74 Quebec H9R 4A9 ComegIdom, Queretam Fmc 201-933-6225 Phone: 514-697-2610 FaK 514-B94-2792 C.P. 76920 Phone: 52 442 2385800 Sika and Silarlard o;�gistoffld tradernae4S. Faun 52 442 2250537 Pdoted in Careda. Guide Specification Note to Specifiers: Ttils Guide Specifliatlon has been prepared by NEOGARIr in printed,and elo=nlc media, as an aid to spedlers In preparing Written wnstruclon couniients for De.tie. Peda-Gard Pedestrian Traffic Goatings. PART I GENERAL 1.1 SUMMARY A. Provide labor, materials, equipment and supervision necessary to install a fluid -applied pedestrian traffic coating system as outlined in this specification to new or existing concrete surfaces. B. The manufacturer's application instruct i ions. for each product used are considered part of this specification and should be followed at all times. C. Related Sections: 1. Section 03 30 00 - Cast -in -Place Concrete 2. Section 03 40 00 - Precast Concrete 4. Section 07 90 00 - Joint Protection 1.2 SYSTEM DESCRIPTION A. Decorative PEDA-GARDO shall be a complete system of compatible materials supplied by NEOGARDOto create a seamless waterproof membranewith integral wearing surface. B. Decorative PEDA-GARDO shall be designated for application an the specific type of deck indicated on the drawings. 1.3 SUBMITTALS A. Technical Data: Submit manufacturer's product data and material safety data sheets (MSDS) an each product. B. Samples: Submit samples of specified pedestrian traffic coatingsystern. Samples shall be construed as examples of finished color and texture of the system only. C. Applicator Approval: Submit letter from manufacturer stating applicator is approved to install the specified pedestrian traffic coating system. D. Warranty: Submit copy of manufacturer's standard warranty. 1.4 QUALITYASSURANCE A. Supplier Qualifications: Decorative PEDA-GARDO, as supplied by NEOGARDO, is approved for use on this project. B. Applicator Qualifications: Applicator shall be approved to install specified system. C. Requirement of Regulatory Agencies: Comply with applicable codes, regulations, ordinances and laws regarding use and application of coating systems. D. Field Sample: 1. Install a field sample of at least 100 square feet at the project site or pre -selected area asagreedto by owner's representative, applicat6rand manufacturer. 2. Apply material in accordance with manufacturer's written application instructions. .3. Field sample will be standard for judging color and texture on remainder of pyoject. 4. Maintain field sample during construction for workmanship comparison. 5. Do not alter, move, or destroy field sample until work is completed and approved by Owner's representative. 1.5 DELIVERY, STORAGE AND HANDLING A. Delivery: Materials shall be delivered in original sealed containers, clearly marked with suppliers name, brand name and type of material. B. Storageand Handling: Recommended material storage temperature is 75OF (230C). Handle products to prevent damage to container. All materials shall be stored in compliance with local fire and safety requirements. Do not store at high temperatures or in direct sunlight. 1.6 PROJECT CONDITIONS A. Priorto starting work, read and followthe Material Safety Data Sheet (MSDS) and container labels for detailed health and -safety information. B. Do not proceed with application of materials when substrate temperature'is less than 400F, if precipitation is imminent, or to a damp, unclean or frosty surface. Ambient temperature should be a minimum 40OF and rising, and more than 50 above dew point. Special precautions are to be taken when ambient and/or substrate temperatures are approaching, at, or above 1 OOOF and it maybe necessary to limit material application to evening hours for exterior exposed decks, C. Coordinate waterproofing work with other trades. Applicatorshall have sole right of access to the specified area forthe time needed to complete the application and allowthe pedestrian traffic coatings to cure adequately. Pedestrian Traffic Coatings 071813-1 04-24-14 D. Protect plants, vegetation or other surfaces not to be coated against damage or soiling. E. Keep products away from spark orflame. Do not allow theuseof spark -producing equipmentcluring application and until all vapors have dissipated. Post "No Smoking" signs. F. Maintain work area in a neat and orderly condition, removing empty contain ers, rags and rubbish daily from the site. 1.7 WARRANTY A., Upon request, NEOGARDO shall offer a manufacturer's standard warranty forinstitutional, commercial, industrial, and high-dse/multi-family residential projects only, after substantial completion of the application and receipt of a property executed warranty request form. WAA *4;J 2.1 MANUFACTURER A. NEOGARDO Division of Jones-BlairO Company, 2728 Empire Central, Dallas, TX 75235, (800) 321-6588, www.neogard.com. 2.2 MATERIALS A. Pedestrian Traffic Coating Materials: 1. Primer., Concrete and metal primers as required by NEOGARDO. 2. Flashing Tape: 86218 flashing tape. 3. Reinforcing Fabric: 86220 reinforcing fabric (Tlietex T-272). 4. Sealant: 70991 or 70995 urethane sealant. 5. Aggregate: Contact NEOGARD"foravallable colors. a. Series 1: Estes PermacolorHP Quartz Granules (UV stable), Medium (20170 mesh). b. Series 2: Trowel-RiteP (20140 mesh) inorganic UV stable quartz aggregate. 6. Base Coat: 70410 or 7430 series polyurethane coating. 7. Wear Coat: 7430 series polyurethane coating. 8. Topcoat: Topcoat: Clear 70805/7952 CRU, Acrylithane HS2 orAcrylithane HS4. 2.3 MATERIAL PERFORMANCE CRITERIA A. Typical physical properties of cured pedestrian traffic coating materials used on this.project,are: 9=� PHYSICAL PROPERTIES TESTMETHOD 70410 7430 TensilaStrength ASTM D412 1,203 2,600 Elongail.on ASTM 0412 400% 400% Pemarent Set ASTM D412 00% 40% Tow Rsistanos ASTM DIOU 100 pit 203P]i �wReslstwce ASTM D471 �3% �3% Q 7 dep TaberAbraslon, 1,000�17 ASTM D4060 30 Mg 25 Ing TEST METHOD TWO 7�13 STM I !L7P5 75.80 Z2�241 AiTM 1 '00 �J 300 psi Note: Furthertechnical Infornnation can be found at httpJA�.neogard.conn 2.4 ACCESSORIES A. Miscellaneous materials such as cleaning agents, adhesives, reinforcing fabric, backer rod, deck drains, etc., shall be compatible with the specified pedestrian traffic coating system. 2.5 MIXING A. Comply with manufacturers instructions for mixing procedures. PART 3 - EXECUTION 3.1 EXAMINATION A. Concrete: Verify thatthework done underother sections meets the following requirements: 1 . Thatthe concrete decksurface is free of ridges and - sharp projections. If metal forms or decks are used they should be ventilated to permit adequate drying of concrete. 2. That the concrete was cured for a minimurri of 28 days. (Minimum of 3,000 psi compressive strength). Water -cured treatment of concrete is preferred. The use of concrete curing agents, if any, shall be of the sodium silicate base only; others require written approval by NEOGARDO. 3. That the concrete was finished by a power or hand steel trowel followed by soft hair broom to obtain light texture or "sidewalk" finish. 4. Thatclarnaged areas ofthe concrete deck be restored to match adjacent areas. Use 70714f70715-09 clear 100% solids epoxy and sand for filling and leveling. 3.2 PREPARATION A. Cleaning: Surfaces contaminated with oil or grease shall be vigorously scrubbed with a stiff bristle broom and a strong. non-sudsing detergent such as NEOGARDO 8500 BioDegradable Cleaner. Thoroughly wash, clean, and dry. Areas where oil or other contaminants penetrate deep into the concrete may require removal by mechanical methods. B. Shot -Blasting: Required surface preparation method for remedial construction is also the preferred method for new construction. Mechanically prepare surface by shot-blastingto industry standard surfacetexture (ICRI's CSP3-CSP4) vvithoutcausing additional surface defects in substrate. Shot-blasting does not remove deep penetrating oils, grease, tar or asphalt stains. Proper 04-24-14 071813-2 Pedestrian Traffic Coatings cleaning procedures should be followed to ensure proper bonding of the deck coating. C. Acid Etching: If shot blasting is not practical, treat concrete surfaces with 10% to 15% solution'of muriatic acid to remove laitance and.impurities. After acid has stopped foaming or boiling, immediately rinsethoroughly with water. Re -rinse as required to remove muriatic acid solution. Acid etching does not remove deep penetrating ails, grease, tar or asphalt stains. Proper cleaning procedures should be followed to ensure proper bonding of the deck coating. D. Cracks and Cold Joints: Visible hairline cracks (less than 1/16" in width) in concrete and cold joints shall be cleaned, primed as required and treated With thoroughly mixed 70410 or 7430 series base coat material a minimum distance of 2" on each side of crack to yield a total thickness of 30 dry mils. Large cracks (greater, than 1/16" in width) shall be routed and sealed with 70991 or 70995 sealant. Sealant shall be applied to inside area of crack only, not applied to deck surface. Detail sealed cracks with thoroughly mixed 70410 or 7430 series base coat material a distance of 2" on each side of crack to yield a total thickness of 30 dry mils. E. Contra] Joints: Seal control joints equal to or less than 1" in width with 70995 urethane sealant. Depending an the width to depth ratio of the joint, backing material and a bond breaker may be required. Install sealants in accordance with ASTM C 1193 and manufacturer's instructions. Detail sealed joints with thoroughly mixed 70410 or 7430 series base coat material a dist ame ol 2" on each side of joint to yield a total thickness 01 Ju dry mils. F. Flashing Tape: Install 86218 flashing tape and 86220 reinforcing fabric where indicated on the drawings and/orwhere required by the manufacturer prior to the application of base coat. G. Surface Condition: Surface shall be clean and dry prior to coating. 3.3 APPLICATION A. Factors That Affect Dry Film Thickness: Volume of solids, thinning, surface profile, application technique and equipment, overspray, squeegee, brush and roller wet out, container residue, spills and other waste are among the many factors that affect the amount of wet coating required to yield proper dry film thick- ness. To ensure that specified dry film thickness is achieved, use a wet mil gauge to verify actual thick- ness of wet coating applied, adjusting as needed for those factors which directly affect the dry film build. 1. Series 1. a. Primer. Where required, thoroughly mix primer and apply at a rate of 300 sf/gal (0.33 gal/I 00 so to all concrete surfaces. Withln,24 hours,of application of primer, base coatmust be applied. If base coat cannot be applied within 24 hours,. inspect surface for contaminants, clean surface as necessary, and re -prime. b. BaseCoat: Thoroughly mix7041 0 or7430 series and apply at a rate of 60 sf/gal (1.66 gal/I 00 sf or 26 wet mils), to yield 20 dry mils. Extend base coat over cracks and control joints which have received detail treatment. c. WearCoat:Thoroughlymix7430sedeswearcoat material and apply at a rate of 120 sf/gal (0.83 gal/100 sf or 13 wet mils), to yield 10 dry mils, and immediately broadcast Estes Permacolor HP Quartz Granules (UVstable), medium (2000 mesh), evenly distributed, into wet coating at a rate of approximately 40-50 lbs/1 00 sf or until refusal. When dry, remove excess aggregate. d. First Topcoat: Thoroughly mix Topcoat material (70805f7952 CRU, Acrylithane HS2 or Acrylithane HS4) and apply at a rate of 150 sf/gal (0.66 gal/1 00 s% and allow to cure tack free. a. Second Topcoat: Thoroughly mix Topcoat material (7080517952 CRU, Acrylithane HS2 orAcrylithane HS4) and apply at a rate of 200 sf/gal (0.5 gal/100 sf)i. Note: It is recommended to aoolv topcoats in a cross hatch Pattern for best coverage and uniformity of appearance, Depending on the degired texturelfinish of the system, additional topcoats may be necessary. The Field Sample. under Section 1.4.D.will provide confirmation of coverage rates for topcoat, System coating thickness is 30 d!Y mils exclusive of primer, agoreciate and toocoats. Series 2: a. Primer: Where required, thoroughly mix primer and apply at a rate of 300 s,f/9a[ (0.33 gal/100 sf) to all concrete surfaces. Within 24 hours of application of primer, base coat must be applied. If base coat cannot be applied within 24 hours, inspect surface forcontaminants, clean surface As necessary, and re -prime. b. Base Coat:Thoroughly mix7041 0 or7430 series .and apply at a rate of 60 sf/gal (1.66 gal/1 00 sf or 26 wet mils), to yield 20 dry mils. Extend base coat over cracks and control joints which have received detail treatment. c. WearCoat:Thoroughlymix7430serieswearroat material and apply at a rate of 120 sf/gal (0.83 gal/100 sf or 13 wet mils), to yield 10 dry mils, and immediately broadcastTrowe[rRiteO (20/40 mesh) inorganic UV stable quartz aggregate, evenly distributed, into wet coating at a rate of approximately 40-50 lbs/1 00 sf or until refusal. When dry, remove excess granules. d. First Topcoat: Thoroughly mix Topcoat material (7.0805f7952 CRU, Acrylithane HS2 or Acrylithane HS4) and apply at a rate of 150 Pedestrian Traffic Coatings 071813-3 04-24-14 sf/gal (0.66 gal/100 sf� and allow to cure tack free. a. Second Topcoat: Thoroughly mix Topcoat material (70805f7952 CRU, Acrylithane HS2 orAcrylithaneHS4) and applyatarateof 200 sf/gal (0.5 gal/I 00 sf).. INIote: It is recommended to apply topcoats in a cross hatch vattem for best coveracie and uniformity o appearance. Depending on the desired Lextureffinish of the system. additional topcoats may be necessaM Ihe Field Sample. under Section 1.4.D will provide confirmation of coverage rates for topcoat. Sistem coating thickness is 30 dry mils exclusive of primer, aggregate and topcoats. 3.4 CLEANING A. Remove debris resulting from completion of coating operation from the project site. B. Reference NEOGARD"Traffic-Bearing Systems Maintenance Manual for typical cleaning methods. 3.5 PROTECTION A. After completion of application, do not allow traffic on coated surfaces for a period of at least 48 hours at 75cF. and 50% R.H., or until completely cured. END OF SECTION The infornnation, data, and suggestions herein are belleved to be reliable, based on M to be obtained in the Buyers process. With regard to those products described herein ofsuch products will not vary by mom than 10% from the tested results set forth in the DISCLAIMS ANY AND ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLU IMPLIEDWARRANTY OF FITNESS FORA PARTICULAR PURPOSE. Buyermustmu alone or In combination with other materials. To the extent any of Manufacturer's py of such defecthre producl� exclusive of any costs of labor. MANUFACTURER SH DAMAGE INCURRED DIRECTLY OR INDIRECTLY BY BUYER OR ANY OTHER PEF PRODUCTS. Nothing contained herein shall be contruad to constitute Inducement or of the patent. No Applicator Is or should be viewed aft an employee or agent of Manuft rer's knowledge and experience. However, Manufacturer does not guarantee the result manufactured by Manufacturer, Manufacturer warrants that the standards and qualities )ats, Sheets associated with such products. MANUFACTURER HEREBY EXPRESSLY 'ITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY ANDIOR m determination of the suitability of ary productfor Its use, whether such product Is used a Proven to be defecthre, Buyerr�s sole remedy.shall be limited W the replacement T BE LIABLE OR OBUGATED FOR ANY LOSS OR CONSEQUENTIAL OR OTHER I ENTITYTHATARISES IN ANYWAY IN RELA71ONTO ANY OF MANUFACTURER'S endallon to prectice any Irwandon cornered by any patent without authority of the owner NEOGARD Div. f JONES-BLAIR 2728 Empire Central -Dallas, Taxas75235 -Phone (2t) 353-16010 -Fax (214) 357-7632-�.necgard.conn 04-24-14 071813-2 Pedestrian Traffic Coatings