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Duke Lesley 1A-LR080208 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.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI 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 Concre.e Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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.: 7753 Placement Date: 01/31/2008 Weather Conditions: Cloudy Time Sampled: 05:45am Temperature - Air: 430F Truck No: 103 Air Content: 5.5% Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 5.0 Batch time: Concrete: 560F Ticket No: NA Unit Weight (pet): NA Sample Location: Grid line L/18, 90' south 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 02/07/2008 7 6.00 28.27 130,980 4,630 Type5 3 2 02/28/2008 28 3 3 02/28/2008 28 3 4 03/27/2008 56 ~l3 ~[g 5IE [;J 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. (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.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI 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: Pothr Concrete Plant: On ~ite Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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.: 7753 !;)Iacement Date: 01/31/2008 Weather Conditions: Cloudy Time Sampled: 07:01 am Temperature - Air: 420F Truck No: 139 Air Content: 5.5% Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 5.0 Batch time: Concrete: 510F Ticket No: NA Unit Weight (pet): NA Sample Location: Grid line L/17.1, 60' south 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 02/07/2008 7 6.00 28.27 155,350 5,490 Type5 4 2 02/28/2008 28 4 3 02/28/2008 28 4 4 03/27/2008 56 0~ [g][J] [ill] t] 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. (CH/KW) Page 4 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI 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: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 6% 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 Batch time: Concrete: 530F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.5 Mix Design I.D.: 7753 Placement Date: 01/31/2008 Weather Conditions: Cloudy Time Sampled: 08:30am Temperature - Air: 450F Truck No: 126 Air Content: 5.8% Overall Placement Location: (Paving) Load dock parking spaces on side side Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 160,880 Area (in') 28.27 Type 6 Sample Location: Grid line U15.9, 10' south REPORT OF TESTS Compressive Strength (psi) 5,690 Fracture Type Type5 Cylinder Marked Date Set No. Tested 5 1 02/07/2008 5 2 02/28/2008 5 3 02/28/2008 5 4 03/27/2008 Age (days) 7 Diameter (in) 6.00 28 28 56 0~ ~Q] ill] E;J DO D Type 1 Type 2 Type 3 Type 4 Type 5 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 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.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7753 Placement Date: 01/31/2008 Weather Conditions: Sunny, windy Time Sampled: 09:30am Batch time: Temperature - Air: 490F Concrete: 540F Truck No: 133 Ticket No: NA Air Content: 5.5% Unit Weight (pcf): NA Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 5.0 Sample Location: Grid line L/13.8, 55' south REPORT OF TESTS Cylinder Marked Date Set No. Tested 6 1 02/07/2008 6 2 02/28/2008 6 3 02/28/2008 6 4 03/27/2008 Age (days) 7 Diameter (in) 6.00 28 28 56 ~E:3 ~[g ~ t] DO D Type 1 Type 2 Type 3 Type 4 Type 5 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 154,900 Compressive Strength (psi) 5,480 Fracture Type Type6 Area (in') 28.27 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. (CH/KW) Page 7 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 6% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 7753 Placement Date: 01/31/2008 Weather Conditions: Sunny, windy Time Sampled: 11: 15am Batch time: Temperature - Air: 500F Concrete: 530F Truck No: 126 Ticket No: NA Air Content: 5.0% Unit Weight (pet): NA Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 5.0 Sample Location: Grid line U12.8, 60' south 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 02/07/2008 7 6.00 28.27 107,390 3,800 Type2 7 2 02/28/2008 28 7 3 02/28/2008 28 7 4 03/27/2008 56 ~E3 ~~ rnJ t] 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. (CH/KW) Page 8 of 9 Rone En~== Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 n01 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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) (in2) (Ibs) (psi) 1 1 01/17/2008 7 6.00 28.27 107,450 3,800 1 2 02/07/2008 28 6.00 28.27 159,270 5,630 1 3 02/07/2008 28 6.00 28.27 152,760 5,400 Average 5,520 1 4 03/06/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 ~r=J ~~ 5IE t] DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design I.D.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 03:22am Temperature - Air: 430F Truck No: 117 Air Content: 4.6% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: Concrete: 570F Ticket No: 18215 Unit Weight (pct): NA Measured Slump (inches) 5.0 Sample Location: 470' west from southeast corner of building 6 (center) Fracture Type Type2 Type2 Type2 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. (TMIKW) Page 1 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 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.: 7753PW6 Placement Date: 01/10/200s:! Weather Conditions: Cloudy Time Sampled: 04:10am Temperature - Air: 480F Truck No: 126 Air Content: 4.5% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 03:38am Concrete: 600F Ticket No: 18221 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 450' west from southeast corner of building 6 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 01/17/2008 7 6.00 28.27 108,070 3,820 Type2 2 2 02/07/2008 28 6.00 28.27 143,900 5,090 Type5 2 3 02/07/2008 28 6.00 28.27 149,800 5,300 Type5 Average 5,190 2 4 03/06/2008 56 ~~ ~~ ITrn [SJ 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 3 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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 Conc..~te Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1 064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design I.D.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 05:18am Temperature - Air: Truck No: 126 Air Content: 4.5% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 04:58am Concrete: 600F Ticket No: 18236 Unit Weight (pct): NA Measured Slump (inches. 5.5 Sample Location: 435' west from southeast corner of building 6 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 01/17/2008 7 6.00 28.27 100,850 3,570 Type5 3 2 02/07/2008 28 6.00 28.27 160,320 5,670 Type2 3 3 02/07/2008 28 6.00 28.27 156,420 5,530 Type2 Average 5,600 3 4 03/06/2008 56 ~l3 ~Q] [illj 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. (TMlKW) Page 5 of 19 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W LiWe 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compressive strength samples and bring samples back to the laboratory for curing and testing in accordance with applicable standards. Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" 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 1.0.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 06:13am Temperature - Air: 520F Truck No: 126 Air Content: 4.7% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 05:54am Concrete: 600F Ticket No: 18243 Unit Weight (pet): NA Measured Slump (inches) 5.5 Sample Location: 410' west from southeast corner of building 6 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 4 1 01/17/2008 7 6.00 28.27 81,700 2,890 Type5 4 2 02/07/2008 28 6.00 28.27 130,750 4,620 Type2 4 3 02/07/2008 28 6.00 28.27 124,210 4,390 Type5 Average 4,510 4 4 03/06/2008 56 ~E:j ~~ Krn [J 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 7 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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) 5 1 01/17/2008 7 6.00 28.27 86,850 3,070 5 2 02/07/2008 28 6.00 28.27 130,400 4,610 5 3 02/07/2008 28 6.00 28.27 131,340 4,650 Average 4,630 5 4 03/06/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 ~Ej [9J~ 5IE [;J DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design I.D.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 07:30am Temperature - Air: 520F Truck No: 133 Air Content: 4.3% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 07: 1 Oam Concrete: 600F Ticket No: 18253 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 332' west from southeast corner of building 6 Fracture Type Type5 Type6 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. (TMlKW) Page 9 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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: Pottpr Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT D AT A Mix Design 1.0.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 08:40am Temperature - Air: 500F Truck No: 135 Air Content: 5.5% Overall Placement Location: Paving, tire lane, south side of building 6 Batch time: 08:01 am Concrete: 620F Ticket No: 18265 Unit Weight (pcf): NA Measured Slump (inches) 5.5 Sample Location: 205' west from southeast corner of building 6 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 01/17/2008 7 6.00 28.27 114,060 4,030 Type2 6 2 02/07/2008 28 6.00 28.27 165,610 5,860 Type2 6 3 02/07/2008 28 6.00 28.27 162,590 5,750 Type3 Average 5,800 6 4 03/06/2008 56 tJ~ ~Q] rnJ E;] 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 11 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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) (inZ) (Ibs) (psi) 7 1 01/17/2008 7 6.00 28.27 98,680 3,490 7 2 02/07/2008 28 6.00 28.27 143,820 5,090 7 3 02/07/2008 28 6.00 28.27 138,440 4,900 Average 4,990 7 4 03/06/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 0r3 ~~ &E bJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design 1.0.: 7753PW6 Placemp.nt Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 09:05am Temperature - Air: 510F Truck No: 117 Air Content: 4.6% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 08:44am Concrete: 580F Ticket No: 18271 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 175' west from southeast comer of building 6 Fracture Type Type2 Type6 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 13 of 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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) 8 1 01/17/2008 7 6.00 28.27 92,460 3,270 8 2 02/07/2008 28 6.00 28.27 136,700 4,830 8 3 02/07/2008 28 6.00 28.27 135,250 4,780 Average 4,810 8 4 03/06/2008 56 Contractor: Duke Construction, LP Concrete Supplier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 r8JE3 ~~ 5IE ~ DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design 1.0.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 10:30am Temperature - Air: 540F Truck No: 139 Air Content: 4.7% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 10:01am Concrete: 600F Ticket No: 18283 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 140' west from southeast corner of building 6 Fracture Type Type2 Type5 Type5 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 19 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.: 310283 Project No.: 0713408 Date of Service: 01/10/2008 Report Date: 02/08/2008 Project: Point West VI 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 Sup,lier: Potter Concrete Plant: 1 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 3" - 5" Air (%): 3% - 5% Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 PROJECT DATA Mix Design 1.0.: 7753PW6 Placement Date: 01/10/2008 Weather Conditions: Cloudy Time Sampled: 11 :30am Temperature - Air: 540F Truck No: 126 Air Content: 4.5% Overall Placement Location: Paving, fire lane, south side of building 6 Batch time: 10:54am Concrete: 600F Ticket No: 18291 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 15' west from southeast corner approach 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') (lbs) (psi) Type 9 1 01/17/2008 7 6.00 28.27 83,160 2,940 Type2 9 2 02/07/2008 28 6.00 28.27 129,660 4,590 Type2 9 3 02/07/2008 28 6.00 28.27 127,340 4,500 Type6 Average 4,540 9 4 03/06/2008 56 ~E3 ~~ ~ E] 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. (TMIKW) Page 17 of 19 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.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI 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 C:-oncrete Supplier: Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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.: 7753 Placement Date: 01/31/2008 Weather Conditions: Cloudy Time Sampled: 03:15am Temperature - Air: 480F Truck No: 133 Air Content: 6.0% Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 6.0 Batch time: 03:08am Concrete: 530F Ticket No: NA Unit Weight (pet): NA Sample Location: Grid line L/21.1, 75' south 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 02/07/2008 7 6.00 28.27 106,820 3,780 Type5 1 2 02/28/2008 28 1 3 02/28/2008 28 1 4 03/27/2008 56 ~tJ ~~ 5l] [J 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. (CH/KW) Page 1 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 312210 Project No.: 0713408 Date of Service: 01/31/2008 Report Date: 02/08/2008 Project: Point West VI 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 Supplif'": Potter Concrete Plant: On site Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): 4% - 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.: 7753 Placement Date: 01/31/2008 Weather Conditions: Cloudy Time Sampled: 04:40pm Temperature - Air: 400F Truck No: 103 Air Content: 5.9% Overall Placement Location: (Paving) Load dock parking spaces on side side Measured Slump (inches) 6.0 Batch time: Concrete: 520F Ticket No: NA Unit Weight (pcf): NA Sample Location: Grid line L/19.9, 35' south 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 02/07/2008 7 5.99 28.18 116,120 4,120 Type5 2 2 02/28/2008 28 2 3 02/28/2008 28 2 4 03/27/2008 56 ~~ ~Q] Kill t] 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. (CH/KW) Page 2 of 9