Loading...
Duke Lesley 3C-LR071211 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.: 301941 Project No.: 0711530 Date of Service: 10/12/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 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 Mix Design I.D.: 9750 PW Placement Date: 10/12/2007 Weather Conditions: Clear Time Sampled: 04:30am Temperature - Air: 670F Truck No: 136 Air Content: NA Overall Placement Location: Panel walls from P27 to P40 Batch time: 04:06am Concrete: 850F Ticket No: 7911 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: From P.2B 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 4 6.00 28.27 106,680 3,770 Cone/Split 1 2 10/16/2007 4 6.00 28.27 107,570 3,800 Cone/Split Average 3,790 1 3 10/19/2007 7 6.00 28.27 113,190 4,000 Cone/Shear 1 4 11/09/2007 28 6.00 28.27 139,730 4,940 Cone/Split 1 5 11/09/2007 28 6.00 28.27 138,590 4,900 Shear Average 4,920 1 6 12/07/2007 56 6.00 28.27 172,880 6,110 Cone/Split Remarks: Water added at site: 5 gallons Results to superintendent 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/ED) Page 1 of 2 Rone En2== 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.: 301941 Project No.: 0711530 Date of Service: 10/12/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 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 Mix Design 1.0.: 9750 PW Placement Date: 10/12/2007 Weather Conditions: Clear Time Sampled: 05:30am Temperature - Air: 640F Truck No: 134 Air Content: NA Overall Placement Location: Panel walls from P27 to P40 Batch time: 05:04am Concrete: 780F Ticket No: 7920 Unit Weight (pet): NA Measu red Slump (inches) 5.75 Sample Location: From P.35 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 4 6.00 28.27 109,650 3,880 Cone/Split 2 2 10/16/2007 4 6.00 28.27 107,190 3,790 Cone/Split Average 3,830 2 3 10/19/2007 7 6.00 28.27 118,860 4,200 Cone/Shear 2 4 11/09/2007 28 6.00 28.27 151,100 5,340 Cone/Split 2 5 11/09/2007 28 6.00 28.27 147,930 5,230 Shear Average 5,290 2 6 12/07/2007 56 6.00 28.27 170,940 6,050 Cone/Split Remarks: Water added at site: 5 gallons Results to superintendent Technician: Jose Villanueva Started: 04:00am Report Distribution: Ori9: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byrne (1-ec copy) 1-cc City of Coppell Attn: Mr. Lee Stone 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 Finished: 07:45am R E. . ~;;ij ~ 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. (OM/ED) Page 2 of 2 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, 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.: 303274 Project No.: 0711530 Date of Service: 10/27/2007 Report Date: 12/11/2007 Project: Point West Office I 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: 5,000 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.: 9385 Placement Date: 10/27/2007 Weather Conditions: Sunny Time Sampled: 08:45am Temperature - Air: 530F Truck No: 125 Air Content: 2.2% Overall Placement Location: Panel #68 Batch time: 08:12am Concrete: 730F Ticket No: 8319 Unit Weight (pcf): NA MeasiJred Slump (inches) 6.5 Sample Location: Same as above 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 10/30/2007 3 6.00 28.27 106,310 3,760 Cone/Split 1 2 10/30/2007 3 6.00 28.27 102,560 3,630 Cone/Split Average 3,690 3 11/03/2007 7 6.00 28.27 126,390 4,470 Shear 1 4 11/24/2007 28 6.00 28.27 176,440 6,240 Cone/Split 1 5 11/24/2007 28 6.00 28.27 177,530 6,280 Cone/Split Average 6,260 1 6 12/22/2007 56 Technician: Alejandro Avendano Started: 08:00am 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 Finished: 09:45am R E. . ~dii ~ 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. (CHfED) Page 1 of 1 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, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 303109 Project No.: 0711530 Date of Service: 10/26/2007 Report Date: 12/11/2007 Project: Point West Office I 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: On site Specification Req uirements Strength: 4,000 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 Mix Design 1.0.: 9385 Placement Date: 10/26/2007 Weather Conditions: Sunny Time Sampled: 09:30am Temperature - Air: 580F Truck No: 118 Air Content: NA Overall Placement Location: Spandle panels SP41, SP42, SP90, SP91 Measured Slump (inches) 4.75 Batch time: 09: 13am Concrete: 740F Ticket No: 8221 Unit Weight (pcf): NA Sample Location: Panels SP41, SP42 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 10/27/2007 1 6.00 28.27 71,930 2,540 Cone/Split 1 2 10/28/2007 2 6.00 28.27 100,550 3,560 Cone/Split 1 3 11/02/2007 7 6.00 28.27 138,960 4,910 Cone/Split 1 4 11/23/2007 28 6.00 28.27 193,810 6,850 Shear 1 5 11/23/2007 28 6.00 28.27 193,590 6,850 Cone/Split Average 6,850 1 6 12/21/2007 56 Technician: Bruce Eberts Started: 09:30am Finished: 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 1 0:30am R E ~2 ~ 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 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.: 304806 Project No.: 0711530 Date of Service: 11/08/2007 Report Date: 12/11/2007 Project: Point West Office I 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: TXI Plant: 141 Specification Requirements Strength: 3,500 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.: 88274 Placement Date: 11/08/2007 Weather Conditions: Sunny Time Sampled: 09:00am Temperature - Air: 510F Truck No: 1066 Air Content: 4.6% Overall Placement Location: Paving, sidewalk, building 1 Batch time: 08:31am Concrete: 730F Ticket No: 569396 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 120 yards west from building 1 intersection 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 1 1 11/15/2007 7 6.00 28.27 128,720 4,550 Cone/Split 1 2 12/06/2007 28 6.00 28.27 138,430 4,900 Cone/Split 1 3 12/06/2007 28 6.00 28.27 139,800 4,940 Cone/Split Average 4,920 1 4 01/03/2008 56 Started: 08:30am Finished: 11 :OOam Technician: David Best Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byme (1-ec copy) 1-cc City of Coppel! Attn: Mr. Lee Stone 1-cc Potter Concrete Attn: Mr Ryan Skelly 1-cc City of Coppel! Attn: Mr. Lee Stone 1-cc City of Coppel! 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 1 of 1 Rone En2== 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.: 304333 Project No.: 0711530 Date of Service: 11/05/2007 Report Date: 12/11/2007 Project: Point West Office I 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: On site Specification Req uirements Strength: 5,000 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 I.D.: 9385 PW Placement Date: 11/05/2007 Weather Conditions: Sunny, windy Time Sampled: 12:30pm Batch time: Temperature - Air: 760F Concrete: 780F Truck No: 140 Ticket No: Air Content: 1.4% Unit Weight (pcf): NA Overall Placement Location: Tilt walls - DP1, DP2, DP3, DP4, DP5, DP6, SP21A, SP21 B, SP21 C Measured Slump (inches) 5.0 Sample Location: DP3 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 11/08/2007 3 6.00 28.27 90,850 3,210 Cone/Split 1 2 11/12/2007 7 6.00 28.27 115,290 4,080 Cone/Split 1 3 12/03/2007 28 6.00 28.27 152,400 5,390 Shear 1 4 12/03/2007 28 6.00 28.27 162,140 5,730 Cone/Split Average 5,560 1 5 12/31/2007 56 Technician: Javier Martinez Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byrne (1-ec copy) 1-cc City of Coppell Attn: Mr. Lee Stone 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 Started: 11 :15am Finished: 01 :30pm 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. (CH/ED) Page 1 of 1 Rone En~=a Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 89D8 Ambassador Row, Dallas, TX 75247 77D1 W Little York, Ste 600, Houston, TX 77D4D 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design I.D.: 7752 Placement Date: 11/06/2007 Weather Conditions: Clear Time Sampled: 04:45am Temperature - Air: 500F Truck No: 132 Air Content: 7.1 % Overall Placement Location: West parking Measured Slump (inches) 6.0 Batch time: 04:39am Concrete: 700F Ticket No: 8865 Unit Weight (pet): NA Sample Location: 20' east from northwest 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 1 1 11/13/2007 7 6.00 28.27 94,460 3,340 Shear 1 2 12/04/2007 28 6.00 28.27 123,500 4,370 Cone/Split 1 3 12/04/2007 28 6.00 28.27 112,760 3,990 Shear Average 4,180 1 4 01/01/2008 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. (CHlKW) Page 1 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Clear Time Sampled: 05:35am Temperature - Air: 510F Truck No: 107 Air Content: 7.0% Overall Placement Location: West parking Batch time: 05: 19am Concrete: 680F Ticket No: 8873 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: 75' east from northwest 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 2 1 11/13/2007 7 6.00 28.27 119,710 4,230 Cone/Split 2 2 12/04/2007 28 6.00 28.27 149,530 5,290 Cone/Split 2 3 12/04/2007 28 6.00 28.27 147,130 5,200 Cone/Split Average 5,250 2 4 01/01/2008 56 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, (CH/KW) Page 2 on 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design I.D.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 07:30am Temperature - Air: 510F Truck No: 132 Air Content: 6.2% Overall Placement Location: West parking Measured Slump (inches) 5.0 Batch time: 06:47am Concrete: 680F Ticket No: 8885 Unit Weight (pet): NA Sample Location: 15' east, 100' from northwest 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 11/13/2007 7 6.00 28.27 104,160 3,680 Cone/Split 3 2 12/04/2007 28 6.00 28.27 125,740 4,450 Shear 3 3 12/04/2007 28 6.00 28.27 120,340 4,260 Cone/Split Average 4,350 3 4 01/01/2008 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/KW) Page 3 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 07:55am Temperature - Air: 510F Truck No: 106 Air Content: 6.3% Overall Placement Location: West parking Measured Slump (inches) 5.5 Batch time: 07:47am Concrete: 680F Ticket No: 8892 Unit Weight (pct): NA Sample Location: 10' east, 125' from northwest 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 11/13/2007 7 6.00 28.27 96,400 3,410 Cone/Split 4 2 12/04/2007 28 6.00 28.27 127,440 4,510 Cone/Split 4 3 12/04/2007 28 6.00 28.27 123,330 4,360 Shear Average 4,430 4 4 01/01/2008 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/KW) Page 4 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 09:13am Temperature - Air: 540F Truck No: 107 Air Content: 6.0% Overall Placement Location: West parking Batch time: 09:07am Concrete: 710F Ticket No: 8905 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 30' east, 125' from northwest 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 5 1 11/13/2007 7 6.00 28.27 101,440 3,590 Shear 5 2 12/04/2007 28 6.00 28.27 130,600 4,620 Shear 5 3 12/04/2007 28 6.00 28.27 123,960 4,380 Shear Average 4,500 5 4 01/01/2008 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. (CHlKW) 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 11 :OOam Temperature - Air: 590F Truck No: 141 Air Content: 4.7% Overall Placement Location: West parking Batch time: 10:41am Concrete: 710F Ticket No: 8917 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: 20' east, 150' from northwest 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 6 1 11/13/2007 7 6.00 28.27 108,720 3,850 Cone/Split 6 2 12/04/2007 28 6.00 28.27 146,440 5,180 Cone/Split 6 3 12/04/2007 28 6.00 28.27 134,230 4,750 Shear Average 4,960 6 4 01/01/2008 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/KW) Page 6 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, 8te 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 12:03pm Temperature - Air: 590F Truck No: 144 Air Content: 6.2% Overall Placement Location: West parking Measured Slump (inches) 5.0 Batch time: 11 :59am Concrete: 690F Ticket No: 8930 Unit Weight (pct): NA Sample Location: 35' east, 120' from northwest 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 7 1 11/13/2007 7 6.00 28.27 125,760 4,450 Cone/Split 7 2 12/04/2007 28 6.00 28.27 131,530 4,650 Cone/Split 7 3 12/04/2007 28 6.00 28.27 148,340 5,250 Shear Average 4,950 7 4 01/01/2008 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 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/KW) 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Mix Design I.D.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 12:40pm Temperature - Air: 590F Truck No: 106 Air Content: 6.0% Overall Placement Location: West parking Measured Slump (inches) 5.5 Batch time: 12:31 pm Concrete: 680F Ticket No: 8936 Unit Weight (pet): NA Sample Location: 25' east, 130' from northwest corner REPORT OF TESTS Concrete Cqmpressive 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 11/13/2007 7 6.00 28.27 86,590 3,060 Cone/Split 8 2 12/04/2007 28 6.00 28.27 105,280 3,720 Shear 8 3 12/04/2007 28 6.00 28.27 116,010 4,100 Shear Average 3,910 * 8 4 01/01/2008 56 * Does not comply with specified strength 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/KW) Page 8 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.: 304448 Project No.: 0711530 Date of Service: 11/06/2007 Report Date: 12/11/2007 Project: Point West Office I 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) (in2) (Ibs) (psi) 9 1 11/13/2007 7 6.00 28.27 93,050 3,290 9 2 12/04/2007 28 6.00 28.27 117,980 4,170 9 3 12/04/2007 28 6.00 28.27 101,590 3,590 Average 3,880 .. 9 4 01/01/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7752 Placement Date: 11/06/2007 Weather Conditions: Sunny Time Sampled: 01 :45pm Temperature - Air: 590F Truck No: 132 Air Content: 6.1% Overall Placement Location: West parking Batch time: 01 :28pm Concrete: 700F Ticket No: 8945 Unit Weight (pet): NA Measu red Slump (inches) 5.0 Sample Location: 25' east, 120' from northwest corner Fracture Type Shear Cone/Split Shear .. Does not comply with specified strength Remarks: Water added at site: 10 gallons Started: 03:30am Finished: 05:15pm Technician: David Best Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Paul Byme (1-ec copy) 1-cc City of Coppell Attn: Mr. Lee Stone 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. (CHIKW) Page 9 of 9