TR9101-LR 910821 (2) SWL SOUTHWESTERN LABORATORIES
Materials, environmental and geotechnical engineering, nondestructive, metallurgical and analytical services
2200 Gravel Drive · P.O. Box 1379, Fort Worth, Texas 76101 · 817/284-7755
REPORT OF ~ [~
!~/ ~P 2 0 1991
CONCRETE
COMPRESSIVE
STRENGTH
CLIENT: Trafflc Signals, Inc.
Po Bo× 454 BF. Engineering
Edmond, OI( 73083 CLIENT NO.: 5852096
REPORT NO.: 105936
PROJECT; Coppell Trafflc Llghts DATE OF SERVICE: 8/21/91
AUTHORIZATION: Tommy
REPORT DATE: 9/18/91
SERVICES: Sample concrete at location of placement, perform required field tests
prepare and test concrete compressive stren§th specimens.
PROJECT DATA
CONTRACTOR: Traffic Signals, Inc. CLA~ OF CONCRfiTE: GItS-IO
CONCRETE SUPPUER: ~ifford ltill DATE 0~ P~CEMENT: 8/21/91
PLANT: No. 2 TIME SAMPLED: 12:15PM BY: Curtis Lewis
SPECIFICATION REQUIREMENTS TEMPERATURE ('F) -AIR: 78 CONCRETE: 84
STRENGTH: 3000psi @ 28 DAYS TRUCK NO: 109 TICKET NO: 337911
SLUMP: 4" Max. LOCATION OF PLACEMENT:
METHOD OF TEST: ASTM C-31 & C-39 Pier for Traffic at Bethal & Denton Tap
REPORT OF TESTS
CONCRETE COMPRESSIVE STRENGTH - 6 X 12 CYLINDERS
CYLINDER MEASURED MAXIMUM COMPRESSIVE
MARKED SLUMP DATE AGE LOAD STRENGTH
· SET NO. (inches) TESTED (days) (lbs. force) (psi) REMARKS
1 1 3.50 8/24/91 3 119080 4210
1 2 3.50 8/28/91 7 132750 4690
1 3 3.50 9/18/91 28 179420 6350
Average 28 day compressive strength results comply with specified strength.
Technician: Curtis Lewis Started: ll:30AM Stopped: 01:30PM
Report Distribution:
(2) Traffic SignaLs, Inc. SOUTHWESTERN LABORATORIES, INC.
(1) City of Coppell
Kemp E. Akeman, P.E.
Materials Engineer
1001 RIB Our letters and reports are for the exclusive use of the cent to whom they are addressed. The letters and reports shall not be
reproclucecl except in full without the abl3roval of the testing laboratory. Tile use of our name must receive our v~ltten approval.