Duke Lesley-LR071218
Rone Eni~
Client:
Duke Construction, LP
14241 Dallas Pkwy, Ste 1000
Dallas, TX 75254-2936
8908 Ambassador Row, Dallas, TX 75247
7701 W Little York, Ste 600, Houston, TX 77040
4421 Freidrich, Ste 195, Austin, TX 78744
Corporate Phone: (214) 630-9745
Report of Concrete Compressive Strength Test
Report No.: 302613
Project No.: 0612510
Date of Service: 10/20/2007
Report Date: 12/18/2007
Project: Lesley Infrastructure
Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring
samples back to the laboratory for curing and testing in accordance with applicable standards.
Contractor:
Concrete Supplier: LMC
Plant: 7
Specification Requirements
Strength: 3,600 psi @ 28 days
Slump (in.): 6" maximum
Air (%): 3% - 6%
Test Method: ASTM C-172
ASTM C-31 (except 10.1.2)
ASTM C-143
ASTM C-231
ASTM C-1064
ASTM C-138
ASTM C-39
PROJECT DATA
Mix Design 1.0.: 9139
Placement Date: 10/20/2007
Weather Conditions: Clear, calm
Time Sampled: 12:00pm Batch time:
Temperature - Air: 770F Concrete: 820F
Truck No: 7024 Ticket No: 7183848
Air Content: 4.4% Unit Weight (pet): NA
Overall Placement Location:
Paving replacement, intersection of Dividend Drive and Beltline Road
Measured
Slump
(inches)
6.5
Sample Location:
Intersection of Dividend Drive and Beltline Rd., 3' east from west curb, southbound
Beltline Road, 8' north from curb on eastbound Dividend Drive
REPORT OF TESTS
Concrete Compressive Cylinder 6" x 12"
Cylinder Maximum Compressive
Marked Date Age Diameter Area Load Strength Fracture
Set No. Tested (days) (in) (in') (Ibs) (psi) Type
1 1 10/21/2007 1 6.00 28.27 127,670 4,520 Shear
1 2 10/21/2007 1 6.00 28.27 129,340 4,570 Shear
Average 4,540
1 3 10/27/2007 7 6.00 28.27 190,4 70 6,740 Cone/Split
1 4 11/17/2007 28 6.00 28.27 223,480 7,900 Cone/Split
1 5 11/17/2007 28 6.00 28.27 222,810 7,880 Cone/Split
Average 7,890
6 12/15/2007 56 6.00 28.27 249,540 8,830 Cone/Split
Started: 11 :OOam Finished: 01 :30pm Rone Engineering
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Technician: Pat Parks
Report Distribution:
Orig: Duke Construction, LP (Dallas, TX)
Attn: Mr. Alex Bennett PE (1-ec copy)
1-ec Lacy Construction Attn: Mr. Kevin Briles
1-cc City of Coppell Attn: Mr. Lee Stone
1-cc City of Coppell Attn: Mr. Larry Davis
K. Scott Watson, AET
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.
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