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Duke Lesley 2A-LR080104 Rone Engineering . 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. PROJECT DATA Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 Mix Design 1.0.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Clear Time Sampled: 03:10am Temperature - Air: 550F Truck No: 140 Air Content: 4.1 % Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Batch time: 02:57am Concrete: 820F Ticket No: 8772 Unit Weight (pet): NA Measured Slump (inches) 4.0 Sample Location: 50' north, 15' west from northeast corner of building REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 11/12/2007 7 6.00 28.27 128,750 4,550 Cone/Split 2 12/03/2007 28 6.00 28.27 169,460 5,990 Cone/Split 3 12/03/2007 28 6.00 28.27 163,120 5,770 Shear Average 5,880 4 12/31/2007 56 6.00 28.27 178,150 6,300 Shear 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. (DM/KW) Page 1 of 9 Rone En~~ 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 Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. PROJECT DATA Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 Mix Design I.D.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Clear Time Sampled: 04:15am Temperature - Air: 550F Truck No: 109 Air Content: 1.3% Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Batch time: 04:00am Concrete: 820F Ticket No: 8779 Unit Weight (pet): NA Measured Slump (inches) 4.25 Sample Location: 75' north, 10' east from northeast corner of building REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 2 1 11/12/2007 7 6.00 28.27 115,670 4,090 Cone/Split 2 2 12/03/2007 28 6.00 28.27 149,660 5,290 Cone/Shear 2 3 12/03/2007 28 6.00 28.27 156,090 5,520 Cone/Split Average 5,410 2 4 12/31/2007 56 6.00 28.27 169,890 6,010 Shear 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. (DMlKW) Page 2 of 9 Rone Engineering . 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. PROJECT DATA Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 Mix Design I.D.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Clear Time Sampled: 05:40am Temperature - Air: 580F Truck No: 101 Air Content: 4.8% Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Batch time: 05:14am Concrete: 820F Ticket No: 8792 Unit Weight (pet): NA Measured Slump (inches) 5.5 Sample Location: 40' north, 25' east from northeast corner of building 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 11/12/2007 7 6.00 28.27 86,650 3,060 Cone/Split 3 2 12/03/2007 28 6.00 28.27 110,840 3,920 Cone/Split 3 3 12/03/2007 28 6.00 28.27 110,360 3,900 Cone/Split Average 3,910 * 3 4 12/31/2007 56 6.00 28.27 118,130 4,180 Shear * Does not comply with specified strength Remarks: Water added at site: 5 gallons LIMIT A 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 Services, Ltd. (DM/KW) Page 3 019 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214)630-9745 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 06:50am Batch time: 06:34am Temperature - Air: 600F Concrete: 850F Truck No: 130 Ticket No: 8803 Air Content: 4.5% Unit Weight (pcf): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 5.75 Sample Location: 15' north, 50' east from northeast corner of building REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Com pressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 11/12/2007 7 6.00 28.27 83,520 2,950 Cone/Shear 4 2 12/03/2007 28 6.00 28.27 107,880 3,820 Shear 4 3 12/03/2007 28 6.00 28.27 110,380 3,900 Cone/Split Average 3,860 * 4 4 12/31/2007 56 6.00 28.27 122,290 4,330 Cone/Split * Does not comply with specified strength Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (DMlKW) Page 4 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 07:45am Batch time: 07:25am Temperature - Air: 600F Concrete: 850F Truck No: 101 Ticket No: 8810 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 5.0 Sam pie Location: 40' east from northeast corner of building 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 11/12/2007 7 6.00 28.27 120,990 4,280 Cone/Split 5 2 12/03/2007 28 6.00 28.27 134,620 4,760 Shear 5 3 12/03/2007 28 6.00 28.27 135,730 4,800 Shear Average 4,780 5 4 12/31/2007 56 6.00 28.27 154,340 5,460 Cone/Split Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (DMlKW) Page 5 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 10:30am Batch time: 10:08am Temperature - Air: 700F Concrete: 900F Truck No: 138 Ticket No: 8823 Air Content: 4.6% Unit Weight (pet): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 4.75 Sample Location: 50' east, 25' south from northeast corner of building REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (inZ) (Ibs) (psi) Type 6 1 11/12/2007 7 6.00 28.27 79,360 2,810 Cone/Split 6 2 12/03/2007 28 6.00 28.27 110,030 3,890 Cone/Split 6 3 12/03/2007 28 6.00 28.27 117,980 4,170 Cone/Shear Average 4,030 6 4 12/31/2007 56 6.00 28.27 130,910 4,630 Shear Remarks: Water added at site: 5 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (DM/KW) Page 6 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.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 11 :55am Batch time: 11 :35am Temperature - Air: 750F Concrete: 900F Truck No: 140 Ticket No: 8838 Air Content: 1.5% Unit Weight (pet): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 4.0 Sample Location: 30' east, 90' south from northeast corner of building REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in2) (Ibs) (psi) Type 7 1 11/12/2007 7 6.00 28.27 109,080 3,860 Cone/Split 7 2 12/03/2007 28 6.00 28.27 133,600 4,730 Shear 7 3 12/03/2007 28 6.00 28.27 130,610 4,620 Cone/Split Average 4,670 7 4 12/31/2007 56 6.00 28.27 159,890 5,650 Cone/Split LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (DMlKW) Page 7 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, lX 75247 7701 W Little York, Ste 600, Houston, lX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 01:45pm Batch time: 01:16pm Temperature - Air: 800F Concrete: 920F Truck No: 126 Ticket No: 15677 Air Content: 4.9% Unit Weight (pcf): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 4.5 Sample Location: 45' east, 140' south from northeast corner of building 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 11/12/2007 7 6.00 28.27 106,910 3,780 Cone/Split 8 2 12/03/2007 28 6.00 28.27 132,390 4,680 Cone/Shear 8 3 12/03/2007 28 6.00 28.27 115.420 4,080 Shear Average 4,380 8 4 12/31/2007 56 6.00 28.27 144,850 5,120 Shear L1MITA liONS: 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. (DMlKW) Page 8 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W LitUe 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.: 304290 Project No.: 0712932 Date of Service: 11/05/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air ('Yo): 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.: 7753 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, clear Time Sampled: 03:00pm Batch time: 02:32pm Temperature - Air: 820F Concrete: 920F Truck No: 130 Ticket No: 8852 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Paving at Point West VII - northeast corner of trailer parking and east fire lane/approach Measured Slump (inches) 6.5 Sample Location: 50' east, 200' south from northeast corner of building 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 11/12/2007 7 6.00 28.27 78,900 2,790 Cone/Split 9 2 12/03/2007 28 6.00 28.27 124,380 4,400 Shear 9 3 12/03/2007 28 6.00 28.27 121,940 4,310 Cone/Split Average 4,360 9 4 12/31/2007 56 6.00 28.27 138,040 4,880 Cone/Split Started: 02:00am Finished: 04:00pm Technician: Montreal Bailey Report Distribution: Orig: Duke Construction, LP (Dallas, TX) AUn: Mr. Paul Byrne (1-ec copy) 1-cc PoUer Concrete AUn: Mr Ryan Skelly 1-cc City of Coppell AUn: Mr. Lee Stone 1-cc City of Coppell AUn: Mr. Larry Davis Rone Engineering ,~~ 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. (DM/KW) 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, 8te 600, Houston, TX 77040 4421 Freidrlch, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Clear Time Sampled: 03:00am Temperature - Air: 400F Truck No: 108 Air Content: 4.1 % Overall Placement Location: Paving Batch time: 02:45am Concrete: 800F Ticket No: 9655 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 150' north, 10' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in2) (Ibs) (psi) Type 1 1 12/11/2007 7 6.00 28.27 96,700 3,420 Type5 1 2 01/01/2008 28 6.00 28.27 150,250 5,310 Type5 1 3 01/01/2008 28 6.00 28.27 143,460 5,070 Type5 Average 5,190 1 4 01/29/2008 56 ~~ [2]~ 5l] lSJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 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. (TMlKW) Page 1 of 16 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75241 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1 064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Clear Time Sampled: 04:45am Temperature - Air: 400F Truck No: 138 Air Content: 4.2% Overall Placement Location: Paving Batch time: 04:23am Concrete: 800F Ticket No: 9670 Unit Weight (pct): NA Measured Slump (inches) 5.0 Sample Location: 100' north, 100' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (inZ) (Ibs) (psi) Type 2 1 12/11/2007 7 6.00 28.27 100,850 3,570 Type2 2 2 01/01/2008 28 6.00 28.27 151,130 5,350 Type6 2 3 01/01/2008 28 6.00 28.27 143,080 5,060 Type2 Average 5,200 2 4 01/29/2008 56 0~ ~Q] ~ ~ DO D Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KW) Page 3 of 16 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Clear Time Sampled: 05:50am Temperature - Air: 420F Truck No: 139 Air Content: 4.0% Overall Placement Location: Paving Batch time: 05:33am Concrete: 800F Ticket No: 9685 Unit Weight (pet): NA Measured Slump (inches) 5.75 Sample Location: 125' north, 215' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 12/11/2007 7 6.00 28.27 86,630 3,060 Type2 3 2 01/01/2008 28 6.00 28.27 125,890 4,450 Type6 3 3 01/01/2008 28 6.00 28.27 123,370 4,360 Type6 Average 4,410 3 4 01/29/2008 56 ~t3 ~0 fIE bJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KW) Page 5 of 16 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Clear Time Sampled: 07:00am Temperature - Air: 450F Truck No: 110 Air Content: 4.3% Overall Placement Location: Paving Batch time: 06:42am Concrete: 800F Ticket No: 9699 Unit Weight (pct): NA Measured Slump (inches) 5.75 Sample Location: 25' north, 300' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 12/11/2007 7 6.00 28.27 90,290 3,190 Type6 4 2 01/01/2008 28 6.00 28.27 125,660 4,440 Type2 4 3 01/01/2008 28 6.00 28.27 123,920 4,380 Type2 Average 4,410 4 4 01/29/2008 56 ~E3 ~[g ill] EJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 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. (TMfKW) Page 7 of 16 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Sunny, clear Time Sampled: 08:55am Batch time: 08:36am Temperature - Air: 520F Concrete: 820F Truck No: 103 Ticket No: 9716 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Paving Measured Slump (inches) 5.25 Sample Location: 75' north, 375' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (inZ) (Ibs) (psi) Type 5 1 12/11/2007 7 6.00 28.27 1 02,430 3,620 Type2 5 2 01/01/2008 28 6.00 28.27 145,330 5,140 Type5 5 3 01/01/2008 28 6.00 28.27 137,030 4,850 Type5 Average 4,990 5 4 01/29/2008 56 ~ESJ ~[:g &lJ bJ DO 0 Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 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. (TMlKW) Page 9 of 16 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Set No. Tested (days) (in) (in') (Ibs) (psi) 6 1 12/11/2007 7 6.00 28.27 105,910 3,750 6 2 01/01/2008 28 6.00 28.27 150,020 5,310 6 3 01/01/2008 28 6.00 28.27 146,620 5,190 Average 5,250 6 4 01/29/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 ~t3 ~~ ill] [SJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT OAT A Mix Design 1.0.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Sunny, clear Time Sampled: 09:55am Batch time: 09:39am Temperature - Air: 55DF Concrete: 84DF Truck No: 139 Ticket No: 9730 Air Content: 4.4% Unit Weight (pet): NA Overall Placement Location: Paving Measured Slump (inches) 5.0 Sample Location: 50' north, 450' east from northwest building corner Fracture Type Type6 Type5 Type3 Type 6 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KW) Page 11 of 16 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Set No. Tested (days) (in) (in') (Ibs) (psi) 7 1 12/11/2007 7 6.00 28.27 116,930 4,140 7 2 01/01/2008 28 6.00 28.27 148,250 5,240 7 3 01/01/2008 28 6.00 28.27 139,430 4,930 Average 5,090 7 4 01/29/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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 0E3 ~[g Brn bJ DO 0 Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design 1.0.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Sunny, clear Time Sampled: 11:10am Batch time: 10:48am Temperature - Air: 580F Concrete: 880F Truck No: 138 Ticket No: 9744 Air Content: 4.5% Unit Weight (pet): NA Overall Placement Location: Paving Measured Slump (inches) 4.75 Sample Location: 100' north, 550' east from northwest building corner Fracture Type Type6 Type2 Type5 Type 6 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 Services. Ltd. (TMlKW) Page 13 of 16 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.: 307153 Project No.: 0712932 Date of Service: 12/04/2007 Report Date: 01/04/2008 Project: Hemisphere's at Point West Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" 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.: 7753PW Placement Date: 12/04/2007 Weather Conditions: Sunny, clear Time Sampled: 12:20pm Batch time: 12:06pm Temperature - Air: 600F Concrete: 860F Truck No: 138 Ticket No: 9760 Air Content: 4.2% UnitWeight (pcf): NA Overall Placement Location: Paving Measured Slump (inches) 4.75 Sample Location: 125' north, 675' east from northwest building corner REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (inZ) (Ibs) (psi) Type 8 1 12/11/2007 7 6.00 28.27 112,710 3,990 Type6 8 2 01/01/2008 28 6.00 28.27 141,920 5,020 Type3 8 3 01/01/2008 28 6.00 28.27 137,940 4,880 Type6 Average 4,950 8 4 01/29/2008 56 ~EJ ~~ 5IE t] DO 0 Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (TM/KW) Page 15 of 16