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ST9301-LR050616 8908 Ambassador Row, Dallas, TX 75247 , Engineering 2696 Gravel Drive, Fort Worth, TX 76118 6300 Rothway, Ste. 150, Houston, TX 77040 �'.. Corporate Phone: (214) 630 -9745 CONCRETE BEAM FLEXURAL STRENGTH Client: City of Coppell '' 11 Report No.: 234019 Ms. Suzan Taylor )1J—sill � Project No.: 059909 � PO Box 9478 )1 Coppell TX 75019 `� Date of Service: 05/18/2005 �0 ✓ Report Date: 06/16/2005 Y Project: East Sandy Lake Road ST 93 -01 Services: Obtain samples of fresh concrete at the placement locations, perform required field testing, cast flexural strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. PROJECT DATA CONTRACTOR: Tiseo Paving Company MIX DESIGN LD.: 1703 CONCRETE SUPPLIER: LMC PLACEMENT DATE: 05/18/2005 PLANT: 7 WEATHER CONDITIONS: Partly cloudy SPECIFICATION REQUIREMENTS TIME SAMPLED: 1 1:1 5am BATCH TIME: 10:19am STRENGTH: 425 psi @ 7 Days TEMPERATURE (F) - AIR 72 F CONCRETE: 80 F TRUCK NO: 5016 TICKET NO: 7152727 SLUMP (in): 2" - 4" AIR CONTENT ( %): 3.8 UNIT WEIGHT (pct): NA AIR ( %): 3% - 5% PLACEMENT LOCATION: Box culvert top and toe wall TEST METHOD: ASTM C -172 ASTM C -31 ASTM C -143 ASTM C -231 ASTM C-1064 ASTM C -1231 SAMPLE LOCATION: 20' west, 4' south ASTM C -78 REPORT OF TESTS Concrete Flexural Strength 6" x 6" Beams Span Length 18" BEAM MEASURED MAXIMUM MODULUS OF AVG AVG MARKED SLUMP DATE AGE LOAD RUPTURE WIDTH DEPTH SET NO. (inches) TESTED (days) (lbs. force) (psi) (in) (in) 1 1 3.5 05/23/2005 5 8190 665 6.04 6.06 1 2 3.5 05/25/2005 7 7860 655 6.12 5.94 1 3 3.5 06/15/2005 28 8900 725 6.16 5.99 1 4 3.5 06/15/2005 28 8950 730 6.15 5.99 Average 730 . /. Rone " , n Technician: Scott Mitchell Started: 9:OOam Finished: 12:30pm � % Report Distribution: (1) City of Coppell /dr (1) City of Coppell f l ay Stark (1) Tiseo Paving Project Manager LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. `j2SS Page 1 of 1