Duke Lesley 3C-LR071024
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.: 299720
Project No.: 0711530
Date of Service: 09/24/2007
Report Date: 10/24/2007
Project: Point West Office I
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
Specification Requirements
Strength: 4,000 psi @ 28 days
Slump (in.): 5" 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
Mix Design I.D.: 7752 PW
Placement Date: 09/24/2007
Weather Conditions: Sunny
Time Sampled: 09:45am
Temperature - Air: 800F
Truck No: 131
Air Content: NA
Overall Placement Location:
170' west, 50' south from northeast paving corner
Measured
Slump
(inches)
5.0
Batch time: 09:32am
Concrete: 830F
Ticket No: 7638
Unit Weight (pet): NA
Sample Location:
50' south, 170' west from northeast parking lot corner
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 10/01/2007 7 6.00 28.27 86,500 3,060 Cone/Split
1 2 10/22/2007 28 6.00 28.27 118,380 4,190 Cone/Split
1 3 10/22/2007 28 6.00 28.27 120,690 4,270 Cone/Split
Average 4,230
1 4 11/19/2007 56
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.
(LB/ED) Page 1 of 2
Rone En2~
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 Freidrlch, Ste 195, Austin, TX 78744
Corporate Phone: (214) 630-9745
Report of Concrete Compressive Strength Test
Report No.: 299720
Project No.: 0711530
Date of Service: 09/24/2007
Report Date: 10/24/2007
Project: Point West Office I
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
Specification Requirements
Strength: 4,000 psi @ 28 days
Slump (in.): 5" 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
Mix Design 1.0.: 7752 PW
Placement Date: 09/24/2007
Weather Conditions: Partly Cloudy
Time Sampled: 12:00pm Batch time: 11 :43am
Temperature - Air: 900F Concrete: 950F
Truck No: 130 Ticket No: 7652
Air Content: NA Unit Weight (pet): NA
Overall Placement Location:
170' west, 50' south from northeast paving corner
Measured
Slump
(inches)
5.0
Sample Location:
190' east, 45' north from northeast building corner
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
2 1 10/01/2007 7 6.00 28.27 90,870 3,210 Cone/Split
2 2 10/22/2007 28 6.00 28.27 126,760 4,480 Cone/Split
2 3 10/22/2007 28 6.00 28.27 125,470 4,440 Cone/Split
Average 4,460
2 4 11/19/2007 56
Technician: Jason Shipe Started: 06:15am
Report Distribution:
Orig: Duke Construction, LP (Dallas, TX) Altn: Mr. Paul Byrne
(1-ec copy)
1-cc Potter Concrete Altn: Mr. Ryan Skelly
1-cc City of Coppell Altn: Mr. Lee Stone
1-cc City of Coppell Altn: Mr. Larry Davis
Finished: 01 :30pm Rone Engineering
P-~
J
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.
(LB/ED) Page 2 of 2