Duke Lesley-LR071221
Rone Engineering
.
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.: 302958
Project No.: 0612510
Date of Service: 10/25/2007
Report Date: 12/21/2007
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.
PROJECT DATA
Contractor:
Concrete Supplier: TXI
Plant: 131
Specification Requirements
Strength: 3,600 psi @ 28 days
Slump (in.): 3" - 5"
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
Mix Design I.D.: 88274
Placement Date: 10/25/2007
Weather Conditions: NA
Time Sampled: 11 :OOam
Temperature - Air: 740F
Truck No: 1187
Air Content: 4.0%
Overall Placement Location:
1. Paving crosswalks, eastbound Dividend Dr.
Dividend Dr. at Point West
Measured
Slump
(inches)
2.75
Batch time: 09:44am
Concrete: 800F
Ticket No: 558274
Unit Weight (pet): NA
2. Paving crosswalks, eastbound
Sample Location:
Beltline and 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 11/01/2007 7 6.00 28.27 128,590 4,550 Cone/Split
1 2 11/22/2007 28 6.00 28.27 177, 190 6,270 Cone/Split
1 3 11/22/2007 28 6.00 28.27 175,890 6,220 Cone/Split
Average 6,240
1 4 12/20/2007 56 6.00 28.27 185,530 6,560 Cone/Split
Remarks: Water added at site: 9 gallons
Technician: Alejandro Avendano
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 AUn: Mr. Larry Davis
Started: 10:45am Finished: 12:15pm Rone Engineering
P-~~
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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