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Duke Lesley 2A-LR080108 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design 1.0.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, light wind Time Sampled: 03:05am Batch time: 02:50am Temperature - Air: 620F Concrete: 750F Truck No: 140 Ticket No: 925 Air Content: 4.4% Unit Weight (pct): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 130' east, 75' south from southwest corner of building 7 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 11/19/2007 7 6.00 28.27 111,590 3,950 Cone/Split 2 12/10/2007 28 6.00 28.27 148,750 5,260 Shear 3 12/10/2007 28 6.00 28.27 147,310 5,210 Shear Average 5,240 4 01/07/2008 56 6.00 28.27 164,740 5,830 Cone/Split 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. (KW/KW) Page 1 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 04: 1 Oam Batch time: 03:53am Temperature - Air: 620F Concrete: 740F Truck No: 40 Ticket No: 9034 Air Content: 4.5% Unit Weight (pcf): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 175' east, 80' south from southwest corner of building 7 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 11/19/2007 7 6.00 28.27 112,230 3,970 Cone/Split 2 2 12/10/2007 28 6.00 28.27 144,950 5,130 Cone/Split 2 3 12/10/2007 28 6.00 28.27 150,840 5,330 Shear Average 5,230 2 4 01/07/2008 56 6.00 28.27 164,150 5,810 Cone/Split Remarks: Water added at site: 10 gallons 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. (KW/KW) Page 2 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 05:25am Batch time: 05:09am Temperature - Air: 610F Concrete: 760F Truck No: 109 Ticket No: 9045 Air Content: 4.4% Unit Weight (pcf): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 4.5 Sample Location: 230' east, 80' south from southwest corner of building 7 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 - 3 1 11/19/2007 7 6.00 28.27 109,240 3,860 Cone/Split 3 2 12/10/2007 28 6.00 28.27 141,360 5,000 Cone/Split 3 3 12/10/2007 28 6.00 28.27 147,250 5,210 Cone/Split Average 5,100 3 4 01/07/2008 56 6.00 28.27 156,180 5,520 Cone/Split Remarks: Water added at site: 10 gallons 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. (KW/KW) Page 3 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 06:40am Batch time: 06: 19am Temperature - Air: 640F Concrete: 760F Truck No: 138 Ticket No: 9055 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 300' east, 70' south from southwest corner of building 7 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 4 1 11/19/2007 7 6.00 28.27 105,090 3,720 Cone/Split 4 2 12/10/2007 28 6.00 28.27 146,340 5,180 Shear 4 3 12/10/2007 28 6.00 28.27 138,910 4,910 Cone/Split Average 5,040 4 4 01/07/2008 56 6.00 28.27 165,800 5,860 Cone/Split Remarks: Water added at site: 10 gallons 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. (KWIKW) Page 4 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 07:45am Batch time: 07:33am Temperature - Air: 690F Concrete: 760F Truck No: 110 Ticket No: 9065 Air Content: 4.4% Unit Weight (pcf): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.5 Sample Location: 380' east, 85' south from southwest corner of building 7 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 5 1 11/19/2007 7 6.00 28.27 100,000 3,540 Cone/Shear 5 2 12/10/2007 28 6.00 28.27 135,320 4,790 Cone/Shear 5 3 12/10/2007 28 6.00 28.27 139,510 4,930 Shear Average 4,860 5 4 01/07/2008 56 6.00 28.27 149,940 5,300 Shear Remarks: Water added at site: 10 gallons 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. (KW/KW) Page 5 of 9 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design 1.0.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy. light rain Time Sampled: 09:20am Batch time: 08:58am Temperature - Air: 700F Concrete: 790F Truck No: 138 Ticket No: 9075 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 425' east. 85' south from southwest corner of building 7 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 6 1 11/19/2007 7 6.00 28.27 95,550 3,380 Cone/Split 6 2 12/10/2007 28 6.00 28.27 131,930 4,670 Cone/Split 6 3 12/10/2007 28 6.00 28.27 131,560 4,650 Shear Average 4,660 6 4 01/07/2008 56 6.00 28.27 146,670 5,190 Cone/Split Remarks: Water added at site: 10 gallons 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. (KW/KW) Page 6 019 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 10:25am Batch time: 10:10am Temperature - Air: 750F Concrete: 790F Truck No: 138 Ticket No: 9085 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 480' east, 85' south from southwest corner of building 7 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 7 1 11/19/2007 7 6.00 28.27 89,640 3,170 Cone/Shear 7 2 12/10/2007 28 6.00 28.27 129,900 4,590 Cone/Split 7 3 12/10/2007 28 6.00 28.27 129,510 4,580 Shear Average 4,590 7 4 01/07/2008 56 6.00 28.27 134,400 4,750 Cone/Split 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. (KW/KW) Page 7 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 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. 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 PROJECT DATA Mix Design I.D.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Cloudy, windy Time Sampled: 11 :20am Batch time: Temperature - Air: 780F Concrete: 810F Truck No: 130 Ticket No: 9095 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 530' east, 80' south from southwest corner of building 7 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 8 1 11/19/2007 7 6.00 28.27 95,410 3,370 Cone/Split 8 2 12/10/2007 28 6.00 28.27 137,640 4,870 Cone/Split 8 3 12/10/2007 28 6.00 28.27 136,360 4,820 Cone/Split Average 4,850 8 4 01/07/2008 56 6.00 28.27 152,020 5,380 Cone/Split 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. (KW/KW) Page 8 of 9 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.: 305138 Project No.: 0712932 Date of Service: 11/12/2007 Report Date: 01/08/2008 Project: Hemisphere's at Point West Cappell, 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. 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 PROJECT DATA Mix Design 1.0.: 7753 PW Placement Date: 11/12/2007 Weather Conditions: Partly cloudy, windy Time Sampled: 12:15pm Batch time: 11:58am Temperature - Air: 800F Concrete: 810F Truck No: 130 Ticket No: 9103 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Paving - southwest section of south parking lot, south side of building 7 Measured Slump (inches) 5.0 Sample Location: 560' east, 75' south from southwest corner of building 7 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 9 1 11/19/2007 7 6.00 28.27 98,310 3,480 Shear 9 2 12/10/2007 28 6.00 28.27 150,270 5,310 Cone/Split 9 3 12/10/2007 28 6.00 28.27 132,900 4,700 Cone/Split Average 5,010 9 4 01/07/2008 56 6.00 28.27 157,090 5,560 Cone/Split Started: 02:30am Finished: 01 :30pm Technician: Pat Parks Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byrne (1-ec copy) 1-cc Potter Concrete Attn: Mr Ryan Skelly 1-cc City of Coppell Attn: Mr. Lee Stone 1-cc City of Coppell Attn: Mr. Larry Davis 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. (KW/KW) Page 9 of 9