Duke Lesley-LR070830
Rone Engineering
.
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
Client:
Duke Construction, LP
14241 Dallas Pkwy, Ste 1000
Dallas, TX 75254-2936
Report of Concrete Compressive Strength Test
Report No.: 296336
Project No.: 0612510
Date of Service: 08/21/2007
Report Date: 08/30/2007
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: LMC
Plant: 7
Specification Requirements
Strength: 4,200 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
Mix Design I.D.: 1701
Placement Date: 08/21/2007
Weather Conditions: Cloudy
Time Sampled: 03:50pm
Temperature - Air: 950F
Truck No: 5016
Air Content: 3.9%
Overall Placement Location:
Inlets poured at east and west bound lanes of Dividend at Station 12+90
Batch time: 02:53pm
Concrete: 970F
Ticket No: 718326
Unit Weight (pct): NA
Measured
Slump
(inches)
4.5
.:\ ':~-Cfvl c.. - '1 GG4
Sample Location:
Same as above
ASTM C-138
ASTM C-39
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) (in2) (Ibs) (psi) Type
1 1 08/28/2007 7 6.00 28.27 108,660 3,840 Unbonded Cap
2 09/18/2007 28
3 09/18/2007 28
4 10/16/2007 56
Technician: Ryan Rawlinson
Report Distribution:
Orig: Duke Construction, LP (Dallas, TX)
Attn: Mr. Alex Bennett PE (1-ec copy)
1-cc City of Coppell Attn: Mr. Lee Stone
1-cc City of Coppell Attn: Mr. Larry Davis
Started: 01 :OOpm Finished: 04:45pm 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.
(CHILB) Page 1 of 1