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Duke Lesley 2A-LR071108 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.: 303625 Project No.: 0712932 Date of Service: 10/31/2007 Report Date: 11/08/2007 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: Redi Mix Plant: 136 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 Mix Design 1.0.: 340K1501 Placement Date: 10/31/2007 Weather Conditions: Clear Time Sampled: 06:40am Temperature - Air: 500F Truck No: 1184 Air Content: NA Overall Placement Location: Panels at Point West VII (panels 42-43, 45-55, 57-58) Measured Slump (inches) 5.5 Batch time: 06:09am Concrete: 800F Ticket No: 13600659 Unit Weight (pet): NA Sample Location: Panel 42 REPORT OF TESTS Cylinder Marked Date Set No. Tested 1 1 11/07/2007 1 2 11/28/2007 1 3 11/28/2007 1 4 12/26/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Remarks: Water added at site: 10 gallons Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 88,640 Compressive Strength (psi) 3,130 Fracture Type Cone/Split Area (in') 28.27 LIMITATIONS: The test results presented herein wene prepaned 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 addnessed and shall not be reproduced except in full without the written appro~al of Rone Engineering Services, Ltd. (JB/JB) Page 1 of 4 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 770~ 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.: 303625 Project No.: 0712932 Date of Service: 10/31/2007 Report Date: 11/08/2007 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compre$sive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Redi Mix Plant: 136 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.: 340K1501 Placement Date: 10/31/2007 Weather Conditions: Sunny, clear Time Sampled: 08:00am Batch time: 07:34am Temperature - Air: 600F Concrete: 800F Truck No: 1184 Tidket No: 13600679 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Panels at Point West VII (panels 42-43, 45-55, 57-58) Measured Slump (inches) 5.0 Sample Location: Panel 45 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load $tren Fracture Set No. Tested (days) (in) (in') (Ibs) i) Type 2 1 11/07/2007 7 6.00 28.27 9 3,430 Cone/Split 11/28/2007 28 .- 2 2 2 3 11/28/2007 28 2 4 12/26/2007 56 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 hav, 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. (JB/JB) Page 2 of 4 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.: 303625 Project No.: 0712932 Date of Service: 10/31/2007 Report Date: 11/08/2007 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: Redi Mix Plant: 136 Specification Req uirements 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.: 340K1501 Placement Date: 10/31/2007 Weather Conditions: Sunny, clear Time Sampled: Batch time: 06:09am Temperature - Air: 650F Concrete: 860F Truck No: 1008 Tioket No: 1300692 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Panels at Point West VII (panels 42-43, 45-55, 57-58) Measured Slump (inches) 5.75 Sample Location: Panel 48 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 11/07/2007 7 6.00 28.27 86,570 3,060 Cone/Split 3 2 11/28/2007 28 3 3 11/28/2007 28 3 4 12/26/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum~ 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 hav~ 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. (JB/JB) Page 3 of 4 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 , 8908 Ambassador Row, Dallas, TX 75247 77011 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.: 303625 Project No.: 0712932 Date of Service: 10/31/2007 Report Date: 11/08/2007 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: Redi Mix Plant: 136 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 Batch time: 10:02am Concrete: 860F Tioket No: 13600711 Unit Weight (pet): NA Measured Slump (inches) 5.5 Mix Design I.D.: 340K1501 Placement Date: 10/31/2007 Weather Conditions: Clear Time Sampled: 1 0:45am Temperature - Air: 650F Truck No: 1039 Air Content: NA Overall Placement Location: Panels at Point West VII (panels 42-43,45-55, 57-58) Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 89,840 Area (in2) 28.27 Sample Location: Panel 54 REPORT OF TESTS Compressive Strength (psi) 3,180 Fracture Type Cone/Split Cylinder Marked Date Set No. Tested 4 1 11/07/2007 4 2 11/28/2007 4 3 11/28/2007 4 4 12/26/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Finished: 12:30pm RoneEngineering p~~ Technician: Montreal Bailey Started: 05:00am 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 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. (JB/JB) Page 4 of 4 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 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 03:45am Batch time: 03:34am Temperature - Air: 740F Concrete: 810F Truck No: 135 Ticket No: 14576 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Measured Slump (inches) 4.5 Sample Location: Grid lines C.2/21.8 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 10/16/2007 7 6.00 28.27 128,480 4,540 Shear 1 2 11/06/2007 28 6.00 28.27 155,480 5,500 Cone/Shear 1 3 11/06/2007 28 6.00 28.27 155,990 5,520 Cone/Split Average 5,510 1 4 12/04/2007 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. {TMIED} Page 1 of 9 Rone Eng.ineering .- 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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 04:45am Batch time: 04:31am Temperature - Air: 750F Concrete: 810F Truck No: 137 Ticket No: 14586 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Measured Slump (inches) 5.0 Sample Location: Grid lines C.2/23 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 10/16/2007 7 6.00 28.27 118,880 4,200 Cone/Split 2 2 11/06/2007 28 6.00 28.27 149,220 5,280 Cone/Split 2 3 11/06/2007 28 6.00 28.27 144,720 5,120 Cone/Split Average 5,200 2 4 12/04/2007 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. (TM/ED) Page 2 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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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 Req uirements Strength: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 05:40am Batch time: 05:23am Temperature - Air: 750F Concrete: 810F Truck No: 125 Ticket No: 14596 Air Content: NA Unit Weight (pet): NA Overall Placement Location: Slab on building, grid lines G-E/21-30 Measured Slump (inches) 4.0 Sample Location: Grid lines D/23.8 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 10/16/2007 7 6.00 28.27 122,220 4,320 Cone/Split 3 2 11/06/2007 28 6.00 28.27 157,420 5,570 Cone/Split 3 3 11/06/2007 28 6.00 28.27 155,730 5,510 Cone/Split Average 5,540 3 4 12/04/2007 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 elCCept in full without the written approval of Rone Engineering Services, Ltd. (TMIED) Page 3 oft 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, 8te 600, Houston, TX 77040 4421 Freidrich, Sle 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report N,o.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 06:30am Batch time: 06:20am Temperature - Air: 740F Concrete: 800F Truck No: 135 Ticket No: 14606 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Measured Slump (inches) 4.25 Sample Location: Grid lines 0.2125.1 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 10/16/2007 7 6.00 28.27 115,610 4,090 Shear 4 2 11/06/2007 28 6.00 28.27 132,120 4,670 Cone/Split 4 3 11/06/2007 28 6.00 28.27 138,330 4,890 Cone/Split Average 4,780 4 4 12/04/2007 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. (TMIED) 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 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 08:05am Batch time: 07:51am Temperature - Air: 760F Concrete: 810F Truck No: 144 Ticket No: 14616 Air Content: NA Unit Weight (pcf): NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Measured Slump (inches) 4.0 Sample Location: Grid lines 0.3/26.1 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) (i",) (Ibs) (psi) Type 5 1 10/16/2007 7 6.00 28.27 119,300 4,220 Shear 5 2 11/06/2007 28 6.00 28.27 138,740 4,910 Cone/Split 5 3 11/06/2007 28 6.00 28.27 153,620 5,430 Cone/Split Average 5,170 5 4 12/04/2007 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. (TM/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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Partly cloudy Time Sampled: 09:10am Batch time: 08:57am Temperature - Air: 760F Concrete: 810F Truck No: 102 Ticket No: 14628 Air Content: NA Unit Weight (pct): NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Measured Slump (inches) 4.0 Sample Location: Grid lines 0.8/27 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 6 1 10/16/2007 7 6.00 28.27 113,760 4,020 Shear 6 2 11/06/2007 28 6.00 28.27 146,690 5,190 Shear 6 3 11/06/2007 28 6.00 28.27 153,400 5,430 Cone/Split Average 5,310 6 4 12/04/2007 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. (TMIED) Page 6 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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Sunny Time Sampled: 10: 15am Temperature - Air: 760F Truck No: 134 Air Content: NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Batch time: 09:57am Concrete: 810F Ticket No: 14639 Unit Weight (pct): NA Measured Slump (inches) 4.25 Sample Location: Grid lines C.5/28 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 10/16/2007 7 6.00 28.27 120,030 4,250 Cone/Split 7 2 11/06/2007 28 6.00 28.27 150,220 5,310 Shear 7 3 11/06/2007 28 6.00 28.27 142,280 5,030 Shear Average 5,170 7 4 12/04/2007 56 L1MrrA TIONS: 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. (TMfED) Page 7 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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Pla<;ement Date: 10/09/2007 Weather Conditions: Sunny Time Sampled: 11: 15am Temperature - Air: nOF Truck No: 142 Air Content: NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Batch time: 11 :04am Concrete: 820F Ticket No: 14651 Unit Weight (pet): NA Measured Slump (inches) 3.75 Sample Location: Grid lines D.1/29 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 10/16/2007 7 6.00 28.27 108,250 3,830 Shear 8 2 11/06/2007 28 6.00 28.27 143,760 5,080 Cone/Split 8 3 11/06/2007 28 6.00 28.27 142,370 5,040 Cone/Split Average 5,060 8 4 12/04/2007 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. (TMIED) Page 8 of I 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.: 301473 Project No.: 0712932 Date of Service: 10/09/2007 Report Date: 11/08/2007 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: 3,500 psi @ 28 days Slump (in.): 3" - 5" 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 PW Placement Date: 10/09/2007 Weather Conditions: Sunny Time Sampled: 12:30pm Temperature - Air: 770F Truck No: 142 Air Content: NA Overall Placement Location: Slab on building, grid lines C-E/21-30 Batch time: Concrete: 820F Ticket No: 14661 Unit Weight (pcf): NA Measured Slump (inches) 4.5 Sample Location: Grid lines C/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) (in') (Ibs) (psi) Type 9 1 10/16/2007 7 6.00 28.27 101,180 3,580 Shear 9 2 11/06/2007 28 6.00 28.27 130,1 00 4,600 Cone/Split 9 3 11/06/2007 28 6.00 28.27 129,240 4,570 Cone/Split Average 4,590 9 4 12/04/2007 56 Started: 02:30am Finished: 02:00pm Technician: Brad Hickman 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. (TM/ED) Page 9 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.: 303555 Project No.: 0712932 Date of Service: 10/30/2007 Report Date: 11/08/2007 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: 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 PROJECT DATA Mix Design 1.0.: 7751PW Placement Date: 10/30/2007 Weather Conditions: Clear, light wind Time Sampled: 10:30am Batch time: 10:08am Temperature - Air: 650F Concrete: 730F Truck No: 126 Ticket No: 15218 Air Content: NA Unit Weight (pct): NA Overall Placement Location: Piers (see report #303554) Measured Slump (inches) 6.5 Sample Location: Same as above REPORT OF TESTS Technician: Tommy Carver Rone Engineering See Report 303554 for technician time~~ Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byme " """. " " (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 Coppell Attn: Mr. Larry Davis Cylinder Marked Date Set No. Tested 1 1 11/06/2007 1 2 11/27/2007 1 3 11/27/2007 1 4 12/25/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 91,820 Compressive Strength (psi) 3,250 Fracture Type Cone/Split Area (inZ) 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. (TMlJB) 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.: 301583 Project No.: 0712932 Date of Service: 10/10/2007 Report Date: 11/08/2007 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: 10/10/2007 Weather Conditions: Clear Time Sampled: 09:30am Temperature - Air: 640F Truck No: 110 Air Content: NA Overall Placement Location: Piers (see report #301582) Batch time: 09:05am Concrete: 720F Ticket No: 7872 Unit Weight (pet): NA Measured Slump (inches) 7.5 Sample Location: Pier A/26.2 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 10/17/2007 7 6.00 28.27 74,980 2,650 Cone/Split 1 2 10/17/2007 7 6.00 28.27 76,070 2,690 Cone/Split Average 2,670 1 3 11/07/2007 28 6.00 28.27 115,570 4,090 Cone/Split 1 4 11/07/2007 28 6.00 28.27 110,070 3,890 Cone/Split Average 3,990 1 5 12/05/2007 56 Technician: Chris Harbour Rone Engineering See Report 301582 for technician timep ~ Report Distribution: . ~. ---... Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byme . ..... ~ (1-ec copy) - 1-cc Potter Concrete Attn: Mr. Ryan Skelly K S tt w t AET 1-cc City of Coppell Attn: Mr. Lee Stone . p ~ ct ~ son, 1-cc City of Coppell Attn: Mr. Larry Davis rOJe anager L1MrrATloNS: 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. (TMlED) Page 1 of 1