Duke Lesley 2A-LR071221
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.: 302970
Project No.: 0712932
Date of Service: 10/25/2007
Report Date: 12/21/2007
Project: Hemisphere's at Point West
Coppell, Texas
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: Duke Construction, LP
Concrete Supplier: Potter Concrete
Plant: 10 - on site mix
Specification Req uirements
Strength: 3,000 psi @ 28 days
Slump (in.): 5" - 7"
Air (%): NA
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 1.0.: 7751
Placement Date: 10/25/2007
Weather Conditions: Clear, windy
Time Sampled: 01:25pm Batch time: 01:05pm
Temperature - Air: 640F Concrete: 580F
Truck No: 120 Ticket No: 8150
Air Content: NA Unit Weight (pet): NA
Overall Placement Location:
Piers at column lines: E.2/30, 0.7/30, 0.2/30, C.7/30, C.2/30, U28.2, U28.7, U29.2,
U29.7, U30, L.6/30, L.B/30, (continue)
Measured
Slump
(inches)
6.5
Sample Location:
Pier at column line 0.2/30
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) (inZ) (Ibs) (psi) Type
1 1 11/01/2007 7 6.00 28.27 101,630 3,590 Cone/Split
1 2 11/22/2007 28 6.00 28.27 143,830 5,090 Cone/Split
1 3 11/22/2007 28 6.00 28.27 142,990 5,060 Cone/Split
Average 5,070
1 4 12/20/2007 56 6.00 28.27 163,250 5,770 Cone/Split
Remarks: K.2/30, K.5/30, L.3/30, B.9/30
Technician: Tommy Carver Rone Engineering
See Report 302969 for technician time~~
Report Distribution:
Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byrne. ... . .... ... ... . ... .
(1-ec copy) .
1-cc p~tter Concrete Attn: Mr Ryan Skelly K. Scott Watson, AET
1-cc City of Coppell Attn: Mr. Lee Stone Project Manager
1-cc City of Coppel! Attn: Mr. Larry Davis
~
LIMIT A nONS: 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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