HomeMy WebLinkAboutIn-Place Concrete Testinga 16G7— � y�Z
April 30, 2018
Florida CNG Partners
711 E 17th Street — Suite D#5
Costa Mesa, CA 92627
RE: IN -PLACE CONCRETE TESTING
Gas Station
121 North Jenkings Road
Fort Pierce, Florida 34947
Dear Sir or Madam:
ENGINEERING & TESTING, INC.
Phone: (866) 781-6889 •Faz: (866) 784-8550
ww•w.tloridaenginceringandtesting.com
250 S.W.13'h Avenue
Pompano Beach, FL 33069
Job Order No.: 18-1809
Pursuant to your request, Florida Engineering & Testing, Inc., has performed rebound hammer
testing on April 26, 2018 at the above referenced site to verify the compressive strength of the in -
place concrete. Five (5) rebound hammer tests were performed in accordance with ASTM C-805,
"Standard Test Method for Rebound Number of Hardened Concrete" using a Schmidt Hammer,
Serial 4157845, Humboldt Model 4H-2975 that was last calibrated on December 15, 2017. Ten (10)
tests were performed at each location and averaged to determine the indicated compressive strength
of the in -place concrete. The following results were obtained:
Test
No.
Test Locations @
Storage Tank Slab
Hammer
Orientation
Average
ReboumI No.
Indicated Compressive
Strength(psi)
1
NW Corner
Vertical Down
40.2
5,600
2
Center
Vertical Down
44.2
6,500
3
SE Corner
Vertical Down
40.7
5,800
Specific information about the in -place concrete is as follows: design (4,000 psi), specifications
(regular mix), and days of curing (more than 1 year). The ambient air temperature during our testing
was approximately 78' F. The concrete surface was trowel or form finished (smooth), dry and was
ground prior to our testing.
Florida Engineering & Testing, Inc. appreciates the opportunity to be of service to you at this phase
of your project. If you �r}guiestions or comments, give us a call.
Sincerely,P`N-MFS �//
o. 0
340� * —
Mark A. Mest V.E STATE OF
Florida Engine'gesting Insi �
Florida Reg. No.. ,<ORl "
Certificate of AutMill
/66fi�%Rh�ITo�
1Q v
Quality