Duke Lesley 3A-LR100309Rone 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
Report of Concrete Compressive Strength Test
Client: Duke Construction, LP Report No.: 368622
14241 Dallas Pkwy, Ste 1000 Project No.: 0915747
Dallas, TX 75254 -2936
Date of Service: 02/27/2010
Report Date: 03/09/2010
Project: Samsung -Point West VII Parking Lot Expansion
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: LMC
Plant:
7
Specification Requirements
Strength:
4,000 psi @ 28 days
Slump (in.):
4" - 6"
Air ( %):
5% maximum
Test Method:
ASTM C -172
4.0
ASTM C -31 (except 10.1.2)
32 °F
ASTM C -143
ASTM C -231
9150
ASTM C -1064
ASTM C -138
5.5%
ASTM C -39
Mix Design I.D.:
1621
Marked
Measured
Placement Date:
02/27/2010
1 1
Slump
Weather Conditions: Clear
03/27/2010
(inches)
Time Sampled:
07:10am
Batch time: 06:32am
4.0
Temperature - Air:
32 °F
Concrete: 45 °F
Truck No:
9150
Ticket No: 7214917
Air Content:
5.5%
Unit Weight (pcf): NA
Overall Placement Location:
1. Approach at middle of east side of building. 2. Northeast entrance paving to existing
slab of paving. (cont below)
Sample Location:
Approach, southeast corner (curb), 2' north, 1' west
REPORT OF TESTS
Cylinder
Marked
Date
Set No.
Tested
1 1
03/06/2010
1 2
03/27/2010
1 3
03/27/2010
4 04/24/2010
Concrete Compressive Cylinder 6" x 12"
Maximum
Age Diameter Area Load
(days) (in) (in') (lbs)
7 5.99 28.18 130,560
28
28
41
�/T] N�'] �u Ll Ll -1 F]
Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
/001
Compressive
Strength
(Psi)
4,630
Fracture
Type
Type 2
0
3 el d
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.
(TM /KW )
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