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Duke Lesley 2A-LR071031 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.: 300525 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): NA 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 PROJECT DATA Mix Design 1.0.: 7751 PW Placement Date: 10/01/2007 Weather Conditions: Clear Time Sampled: 11 :OOam Temperature - Air: 890F Truck No: 104 Air Content: NA Overall Placement Location: Building piers U8.2-6.2; 3.2; 2.5; 1.4; 0.9 Batch time: 10:39am Concrete: 940F Ticket No: 14205 Unit Weight (pcf): NA Measured Slump (inches) 6.5 Sample Location: Pier U7.8 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 10/08/2007 7 6.00 28.27 98,060 3,470 Cone/Shear 1 2 10/08/2007 7 6.00 28.27 81,710 2,890 Cone/Split Average 3,180 1 3 10/29/2007 28 6.00 28.27 124,740 4,410 Cone/Split 1 4 10/29/2007 28 6.00 28.27 131,860 4,660 Shear Average 4,540 5 11/26/2007 56 Technician: Chris Harbour Rone Engineering See Report 300524 for technician time~ ~ Report Distribution: ~ ~ Orig: Duke Construction. LP (Dallas, TX) Alln: Mr. Paul Byrne .' ~ (1-ec copy) 1-cc Potter Concrete Alln: Mr. Ryan Skelly K. Scott Watson, AET 1-cc City of Coppell Alln: Mr. Lee Stone Project Manager 1-cc City of Coppell Alln: Mr. Larry Davis 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 1 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 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300431 Project No.: 0712932 Date of Service: 09/29/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): NA 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 PROJECT DATA Mix Design I.D.: 7751 PW Placement Date: 09/29/2007 Weather Conditions: Clear Time Sampled: 11 :OOam Temperature - Air: 780F Truck No: 137 Air Content: NA Overall Placement Location: Building piers U10.2-8.8, 16.8 Batch time: 09:55am Concrete: 860F Ticket No: 14123 Unit Weight (pcf): NA Measured Slump (inches) 7.0 Sample Location: Building pier U10.2 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 10/06/2007 7 6.00 28.27 90,050 3,180 Shear 1 2 10/06/2007 7 6.00 28.27 85,130 3,010 Cone/Split Average 3,100 3 10/27/2007 28 6.00 28.27 121,100 4,280 Cone/Shear 4 10/27/2007 28 6.00 28.27 113,800 4,020 Cone/Split Average 4,150 1 5 11/24/2007 56 Technician: Chris Harbour Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Alln: Mr. Paul Byrne (1-ec copy) 1-cc Poller Concrete Alln: Mr. Ryan Skelly 1-cc City of Coppell Alln: Mr. Lee Stone 1-cc City of Coppell Alln: 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. (CH/ED) Page 1 of 1 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 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300245 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 3,000 psi @ 28 days Slump (in.): NA 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 PROJECT DATA Mix Design 1.0.: 77551 PW Placement Date: 09/28/2007 Weather Conditions: Clear Time Sampled: 10:25am Temperature - Air: 850F Truck No: 101 Air Content: NA Overall Placement Location: Building piers U14.2-13.2, U12.2-10.8 Batch time: 09:38am Concrete: 890F Ticket No: 14083 Unit Weight (pcf): NA Measured Slump (inches) 6.5 Sample Location: Building pier U13.8 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 10/05/2007 7 6.00 28.27 92,840 3,280 Shear 1 2 10/26/2007 28 6.00 28.27 122,710 4,340 Cone/Split 1 3 10/26/2007 28 6.00 28.27 110,250 3,900 Cone/Split Average 4,120 4 11/23/2007 56 5 11/23/2007 56 Technician: Chris Harbour Rone Engineering See Report 300244 for technician time~~ ~~~: . .. ~ Orig: Duke Construction, LP (Dallas, TX) Altn: Mr. Paul Byrne .. ~ (1-ec copy) - 1-cc Polter Concrete Altn: Mr. Ryan Skelly K. Scott Watson AET 1-cc City of Coppell Altn: Mr. Lee Stone p . t M ' 1-cc City of Coppell Attn: Mr. Larry Davis rOJec anager 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. (CH/ED) Page 1 of 1 Rone En~== 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.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Cloudy, calm Time Sampled: 03:50am Batch time: 03:39am Temperature - Air: 760F Concrete: 920F Truck No: 143 Ticket No: 14139 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Slab - G,H,J/11-21 Measured Slump (inches) 5.0 Sample Location: G,H,J/11-11.8 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 10/08/2007 7 6.00 28.27 109,820 3,880 Shear 1 2 10/29/2007 28 6.00 28.27 136,250 4,820 Shear 1 3 10/29/2007 28 6.00 28.27 145,850 5,160 Cone/Split Average 4,990 1 4 11/26/2007 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 10 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.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Cloudy, calm Time Sampled: 04:45am Batch time: 04:34am Temperature - Air: 760F Concrete: 920F Truck No: 143 Ticket No: 14148 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Slab - G,H,J/11-21 Measured Slump (inches) 6.0 Sam pie Location: G,H,J/11.8-12.8 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 10/08/2007 7 6.00 28.27 107,380 3,800 Shear 2 2 10/29/2007 28 6.00 28.27 134,580 4,760 Cone/Shear 2 3 10/29/2007 28 6.00 28.27 137,920 4,880 Cone/Split Average 4,820 2 4 11/26/2007 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 2 of 10 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.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Cloudy, calm Time Sampled: 06:00am Batch time: 05:44am Temperature - Air: 780F Concrete: 900F Truck No: 143 Ticket No: 14159 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Slab - G,H,J/11-21 Measured Slump (inches) 6.0 Sample Location: G,H,J/12.8-13.8 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 3 1 10/08/2007 7 6.00 28.27 119,800 4,240 Cone/Split 3 2 10/29/2007 28 6.00 28.27 153,590 5,430 Cone/Split 3 3 10/29/2007 28 6.00 28.27 150,540 5,320 Cone/Split Average 5,380 3 4 11/26/2007 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 3 of 10 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 Project: Hemisphere's at Point We Coppell, Texas Services: Obtain samples of fresh concrete t the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for uring and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Cloudy, calm Time Sampled: 06:55am Batch time: 06:41am Temperature - Air: nOF Concrete: 920F Truck No: 125 Ticket No: 14169 Air Content: NA Unit Weight (pct): NA Overall Placement Location: Slab - G,H,J/11-21 Measured Slump (inches) 5.0 Sample Location: G,H,J/13.8-14.8 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 10/08/2007 7 6.00 28.27 116,180 4,110 Shear 4 2 10/29/2007 28 6.00 28.27 143,970 5,090 Cone/Split 4 3 10/29/2007 28 6.00 28.27 146,480 5,180 Cone/Split Average 5,140 4 4 11/26/2007 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 4 of 10 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 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Com pressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 07:35am Temperature - Air: 780F Truck No: 137 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 07:29am Concrete: 920F Ticket No: 14176 Unit Weight (pet): NA Measured Slump (inches) 6.0 Sample Location: G,H,J/14.8-15.8 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 10/08/2007 7 6.00 28.27 106,610 3,770 Cone/Split 5 2 10/29/2007 28 6.00 28.27 142,820 5,050 Shear 5 3 10/29/2007 28 6.00 28.27 139,490 4,930 Cone/Split Average 4,990 5 4 11/26/2007 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 5 of 10 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 09:20am Temperature - Air: 800F Truck No: 117 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 09:05am Concrete: 920F Ticket No: 14189 Unit Weight (pcf): NA Measured Slump (inches) 3.0 Sample Location: G,H,J/15.8-16.8 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 10/08/2007 7 6.00 28.27 118,670 4,200 Cone/Split 6 2 10/29/2007 28 6.00 28.27 160,550 5,680 Cone/Split 6 3 10/29/2007 28 6.00 28.27 153,330 5,420 Cone/Split Average 5,550 6 4 11/26/2007 56 L1MITA 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 SelVices, Ltd. (LB/ED) Page 6 of 10 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 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 10:30am Temperature - Air: 820F Truck No: 117 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 10: 15am Concrete: 920F Ticket No: 14201 Unit Weight (pct): NA Measured Slump (inches) 4.0 Sample Location: G,H,J/16.8-17.8 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 10/08/2007 7 6.00 28.27 112,570 3,980 Cone/Split 7 2 10/29/2007 28 6.00 28.27 148,530 5,250 Cone/Split 7 3 10/29/2007 28 6.00 28.27 148,940 5,270 Shear Average 5,260 7 4 11/26/2007 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 7 of 10 Rone En~~ 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 11 :30am Temperature - Air: 800F Truck No: 125 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 11: 15am Concrete: 940F Ticket No: 14212 Unit Weight (pct): NA Measured Slump (inches) 6.0 Sample Location: G,H,J/17.8-18.8 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 8 1 10/08/2007 7 6.00 28.27 115,120 4,070 Cone/Split 8 2 10/29/2007 28 6.00 28.27 147,320 5,210 Cone/Split 8 3 10/29/2007 28 6.00 28.27 145,800 5,160 Shear Average 5,180 8 4 11/26/2007 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 8 of 10 Rone En~~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 15241 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 18144 Corporate Phone: (214) 630-9145 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 12:15pm Temperature - Air: 880F Truck No: 135 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 12:09pm Concrete: 940F Ticket No: 14222 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: G,H,J/18.8-19.8 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 10/08/2007 7 6.00 28.27 113,470 4,010 Cone/Split 9 2 10/29/2007 28 6.00 28.27 144,830 5,120 Shear 9 3 10/29/2007 28 6.00 28.27 141,070 4,990 Cone/Split Average 5,060 9 4 11/26/2007 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 9 of 10 Rone En~== 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 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300539 Project No.: 0712932 Date of Service: 10/01/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 01 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% 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.: 9349 Placement Date: 10/01/2007 Weather Conditions: Sunny Time Sampled: 01 :OOpm Temperature - Air: 880F Truck No: 144 Air Content: NA Overall Placement Location: Slab - G,H,J/11-21 Batch time: 12:39pm Concrete: 940F Ticket No: 14228 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: G,H,J/19.8-21 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 10 1 10/08/2007 7 6.00 28.27 120,640 4,270 Shear 10 2 10/29/2007 28 6.00 28.27 154,170 5,450 Shear 10 3 10/29/2007 28 6.00 28.27 155,610 5,500 Cone/Split Average 5,480 10 4 11/26/2007 56 Started: 02:30am Finished: 02:00pm Technician: Denny Harris 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. (LB/ED) Page 10 of 10 Rone En~~ 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 03:35am Batch time: 03:24am Temperature - Air: 720F Concrete: 900F Truck No: 112 Ticket No: 14023 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.0 Sample Location: Grid line C/21-21.4 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 10/05/2007 7 6.00 28.27 123,790 4,380 Cone/Split 1 2 10/26/2007 28 6.00 28.27 150,930 5,340 Cone/Split 1 3 10/26/2007 28 6.00 28.27 151,310 5,350 Shear Average 5,340 4 11/23/2007 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. (CH/ED) Page 1 of9 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, 8te 600, Houston, TX 77040 4421 Freidrich, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design I.D.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 04:10am Batch time: 03:51am Temperature - Air: 720F Concrete: 900F Truck No: 112 Ticket No: 14029 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.0 Sample Location: Grid line 8/22.5 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 10/05/2007 7 6.00 28.27 116,000 4,100 Cone/Split 2 2 10/26/2007 28 6.00 28.27 151,720 5,370 Shear 2 3 10/26/2007 28 6.00 28.27 152,230 5,380 Cone/Split Average 5,380 2 4 11/23/2007 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. (CH/ED) Page 2 of9 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.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 04:45am Batch time: 04:20am Temperature - Air: 690F Concrete: 900F Truck No: 112 Ticket No: 14035 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.5 Sample Location: Grid line A/23-23.2 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 3 1 10/05/2007 7 6.00 28.27 116,070 4,110 Cone/Split 3 2 10/26/2007 28 6.00 28.27 145,500 5,150 Cone/Split 3 3 10/26/2007 28 6,00 28,27 147,020 5,200 Cone/Shear Average 5,170 3 4 11/23/2007 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. (CH/ED) Page 3 of 9 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.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the pia ement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing an esting in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 06:12am Batch time: Temperature - Air: 690F Concrete: 900F Truck No: 142 Ticket No: 14050 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 6.0 Sample Location: Grid line 24-24.7 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 4 1 10/05/2007 7 6.00 28.27 118,680 4,200 Cone/Split 4 2 10/26/2007 28 6.00 28.27 147,100 5,200 Cone/Split 4 3 10/26/2007 28 6.00 28.27 149,120 5,270 Shear Average 5,240 4 4 11/23/2007 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. (CH/ED) Page 4 of 9 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 07:00am Batch time: 06:42am Temperature - Air: 690F Concrete: 900F Truck No: 139 Ticket No: 14059 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.5 Sample Location: Grid line B/25-25.5 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 5 1 10105/2007 7 6.00 28.27 116,940 4,140 Cone/Split 5 2 10/26/2007 28 6.00 28.27 147,920 5,230 Cone/Split 5 3 10/26/2007 28 6.00 28.27 148,650 5,260 Cone/Split Average 5,240 5 4 11/23/2007 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. (CH/ED) Page 5 of 9 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 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design I.D.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 08:45am Batch time: 08:34am Temperature - Air: 750F Concrete: 900F Truck No: 142 Ticket No: 14071 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 4.5 Sample Location: Grid line 8/26-26.7 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 10/05/2007 7 6.00 28.27 119,990 4,240 Shear 6 2 10/26/2007 28 6.00 28.27 148,100 5,240 Cone/Split 6 3 10/26/2007 28 6.00 28.27 157,210 5,560 Cone/Split Average 5,400 6 4 11/23/2007 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. (CH/ED) Page 6 of 9 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.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 09:35am Batch time: 09:15am Temperature - Air: 770F Concrete: 900F Truck No: 103 Ticket No: 14079 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 3.0 Sample Location: Grid line B/27-27.5 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 7 1 10/05/2007 7 6.00 28.27 124,360 4,400 Cone/Split 7 2 10/26/2007 28 6.00 28.27 157,960 5,590 Cone/Split 7 3 10/26/2007 28 6.00 28.27 151,870 5,370 Cone/Split Average 5,480 7 4 11/23/2007 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. (CH/ED) Page 7 of 9 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.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT OAT A Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 11 :05am Batch time: 10:45am Temperature - Air: 800F Concrete: 900F Truck No: 126 Ticket No: 14095 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.0 Sample Location: Grid line C/28-28.7 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 8 1 10/05/2007 7 6.00 28.27 130,180 4,600 Shear 8 2 10/26/2007 28 6.00 28.27 152,900 5,410 Shear 8 3 10/26/2007 28 6.00 28.27 158,660 5,610 Cone/Split Average 5,510 8 4 11/23/2007 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. (CH/ED) Page 8 of 9 Rone En~== 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 300265 Project No.: 0712932 Date of Service: 09/28/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 09/28/2007 Weather Conditions: Cloudy, calm Time Sampled: 12:30pm Batch time: 12:15pm Temperature - Air: 780F Concrete: 900F Truck No: 101 Ticket No: 14103 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Building pad slab on grade A-C/21-29.9 Measured Slump (inches) 5.0 Sample Location: Grid line C/29.9-29.3 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 9 1 10/05/2007 7 6.00 28.27 104,220 3,690 Shear 9 2 10/26/2007 28 6.00 28.27 134,830 4,770 Cone/Split 9 3 10/26/2007 28 6.00 28.27 128,640 4,550 Shear Average 4,660 9 4 11/23/2007 56 Technician: David Best Started: 02:30am Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Altn: Mr. Paul Byrne (1-ec copy) 1-cc Polter Concrete Altn: Mr. Ryan Skelly 1-cc City of Coppell Altn: Mr. Lee Stone 1-cc City of Coppell Altn: Mr. Larry Davis Finished: 04:30pm 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. (CH/ED) Page 9 of 9 Rone En~~ 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.: 302575 Project No.: 0712932 Date of Service: 10/20/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 10/20/2007 Weather Conditions: Clear, windy Time Sampled: 04:45am Batch time: Temperature - Air: 580F Concrete: 670F Truck No: 110 Ticket No: Air Content: 1.2% Unit Weight (pet): NA Overall Placement Location: Tilt wall panels, P124-P128, P131-P146 Measured Slump (inches) 5.0 Sample Location: P128, top section REPORT OF TESTS Cylinder Marked Date Set No. Tested 1 1 10/27/2007 1 2 11/03/2007 1 3 11/17/2007 1 4 11/17/2007 Age (days) 7 Diameter (in) 6.00 14 28 28 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 111,910 Compressive Strength (psi) 3,960 Fracture Type Cone/Split Area (in2) 28.27 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. (TMIED) Page 1 of" 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.: 302575 Project No.: 0712932 Date of Service: 10/20/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 PROJECT DATA Mix Design I.D.: 9349 Placement Date: 10/20/2007 Weather Conditions: Clear, windy Time Sampled: 07:15am Batch time: Temperature - Air: 570F Concrete: 700F Truck No: 131 Ticket No: Air Content: 1.3% Unit Weight (pet): NA Overall Placement Location: Tilt wall panels, P124-P128, P131-P146 Measured Slump (inches) 6.0 Sample Location: P131, middle section 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 10/27/2007 7 6.00 28.27 99,830 3,530 Shear 2 2 11/03/2007 14 2 3 11/17/2007 28 2 4 11/17/2007 28 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. (TMIED) Page 2 of 4 Rone En~== 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.: 302575 Project No.: 0712932 Date of Service: 10/20/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 PROJECT DATA Mix Design I.D.: 9349 Placement Date: 10/20/2007 Weather Conditions: Clear, windy Time Sampled: 09: 15am Batch time: Temperature - Air: 680F Concrete: 700F Truck No: 110 Ticket No: Air Content: 1.3% Unit Weight (pet): NA Overall Placement Location: Tilt wall panels, P124-P128, P131-P146 Measured Slump (inches) 5.5 Sample Location: P145 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 3 1 10/27/2007 7 6.00 28.27 102,730 3,630 Shear 3 2 11/03/2007 14 3 3 11/17/2007 28 3 4 11/17/2007 28 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. (TMIED) Page 3 of 4 Rone En~~ 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.: 302575 Project No.: 0712932 Date of Service: 10/20/2007 Report Date: 10/31/2007 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. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @28 days Slump (in.): 4" - 6" 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 10/20/2007 Weather Conditions: Clear, windy Time Sampled: 10:15am Batch time: Temperature - Air: 710F Concrete: 750F Truck No: 110 Ticket No: Air Content: 1.1 % Unit Weight (pet): NA Overall Placement Location: Tilt wall panels, P124-P128, P131-P146 Measured Slump (inches) 6.0 Sample Location: P143, top section REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 104,250 Cylinder Marked Date Set No. Tested 4 1 10/27/2007 4 2 11/03/2007 4 3 11/17/2007 4 4 11/17/2007 Age (days) 7 Diameter (in) 6.00 14 28 28 Area (in2) 28.27 Compressive Strength (psi) 3,690 Fracture Type Cone/Split Started: 04:00am Finished: 11:15am Technician: Javier Martinez 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. (TMIED) Page 4 of ..