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Duke Lesley 1A-LR080104 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 560F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 4.5 Mix Design 1.0.: 7753 Placement Date: 12/03/2007 Weather Conditions: Clear Time Sampled: 03:33am Temperature - Air: 370F Truck No: 144 Air Content: 6.0% Overall Placement Location: Paving - parking spaces 1 st section, northeast corner of project, from grid line A/31.5 to A/42, start 150' (continue) Sample Location: 220' north from grid line A/41. 7 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (In) (in') (Ibs) (psi) Type 1 1 12/10/2007 7 6.00 28.27 113,400 4,010 Shear 2 12/31/2007 28 6.00 28.27 150,630 5,330 Cone/Split 3 12/31/2007 28 6.00 28.27 157,160 5,560 Shear Average 5,440 4 01/28/2008 56 Remarks: north end, 225' north Using pump to place concrete; notified on-site crew leader of test results 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 1 of 8 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 550F Ticket No: NA Unit Weight (pcf): NA Measured Slump (inches) 4.5 Mix Design I.D.: 7753 Placement Date: 12/03/2007 Weather Conditions: Clear Time Sampled: 05:00am Temperature - Air: 380F Truck No: 131 Air Content: 6.0% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line N31.5 to A/42, start 150' (continue) Sample Location: 190' north from grid line A/40.7 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 2 1 12/10/2007 7 6.00 28.27 119,320 4,220 Shear 2 2 12/31/2007 28 6.00 28.27 155,980 5,520 Cone/Split 2 3 12/31/2007 28 6.00 28.27 159,190 5,630 Cone/Split Average 5,570 2 4 01/28/2008 56 Remarks: north end, 225' north Notified on-site crew leader of test results 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 of8 Rone Eni~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 Project: Point West VI Coppell, Texas Services: Obtain samples offresh 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 (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 540F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.0 Mix Design 1.0.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 06:15am Temperature - Air: 340F Truck No: 117 Air Content: 5.4% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line A/31.5 to A/42, start 150' (continue) Sample Location: 170' north from grid line A/38.5 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 12/10/2007 7 6.00 28.27 96,920 3,430 Shear 3 2 12/31/2007 28 6.00 28.27 133,660 4,730 Cone/Shear 3 3 12/31/2007 28 6.00 28.27 140,040 4,950 Shear Average 4,840 3 4 01/28/2008 56 Remarks: north end, 225' north Notified on-site crew leader of test results 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 8 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 Freldrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 520F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.0 Mix Design I.D.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 07:30am Temperature - Air: 340F Truck No: 136 Air Content: 3.0% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line A/31.5 10 A/42, start 150' (continue) Sample Location: 195' north from grid line A/36.4 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 12/10/2007 7 6.00 28.27 102,980 3,640 Shear 4 2 12/31/2007 28 6.00 28.27 119,460 4,230 Shear 4 3 12/31/2007 28 6.00 28.27 120,340 4,260 Shear Average 4,240 4 4 01/28/2008 56 Remarks: north end, 225' north 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 8 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.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 620F Ticket No: Unit Weight (pet): NA Measured Slump (inches) 4.5 Mix Design 1.0.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 09:30am Temperature - Air: 360F Truck No: 117 Air Content: 6.0% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line N31.5 to AJ42, start 150' (continue) Sample Location: 175' north from grid line AJ35.1 REPORT OF TESTS Concrete Com pressive 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 12/10/2007 7 6.00 28.27 102,370 3,620 Shear 5 2 12/31/2007 28 6.00 28.27 139,880 4,950 Cone/Split 5 3 12/31/2007 28 6.00 28.27 142,280 5,030 Cone/Split Average 4,990 5 4 01/28/2008 56 Remarks: north end, 225' north Notified on-site crew leader of test results 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 5 of 8 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.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 620F Ticket No: NA Unit Weight (pct): NA Measured Slump (inches) 5.0 Mix Design 1.0.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 1 0:45am Temperature - Air: 410F Truck No: 138 Air Content: 5.5% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line A/31.5 to A/42, start 150' (continue) Sample Location: 210' north from grid line N33.9 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 12/10/2007 7 6.00 28.27 97,970 3,460 Cone/Split 6 2 12/31/2007 28 6.00 28.27 155,940 5,520 Shear 6 3 12/31/2007 28 6.00 28.27 153,090 5,410 Shear Average 5,460 6 4 01/28/2008 56 Remarks: north end, 225' north Water added at site: 10 gallons Notified on-site crew leader of test results 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 8 Rone Eni=:; Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houston, TX 77040 4421 Freldrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 630F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 6.0 Mix Design I.D.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 12:00pm Temperature - Air: 610F Truck No: 128 Air Content: 5.3% Overall Placement Location: Paving - parking spaces 1st section, northeast corner of project, from grid line A/31.5 to AJ42, start 150' (continue) Sample Location: 215' north from grid line A/32.7 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 7 1 12/10/2007 7 6.00 28.27 94,010 3,320 Cone/Shear 7 2 12/31/2007 28 6.00 28.27 139,880 4,950 Cone/Split 7 3 12/31/2007 28 6.00 28.27 137,940 4,880 Cone/Split Average 4,910 7 4 01/28/2008 56 Remarks: north end, 225' north Water added at site: 5 gallons L1MITA TraNS: 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 8 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 Freidrlch, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 307040 Project No.: 0713408 Date of Service: 12/03/2007 Report Date: 01/04/2008 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: 10 Specification Requirements Strength: 4,000 psi @ 28 days Slump (in.): 4" - 6" Air (%): NA Test Method: ASTM C-172 ASTM C-31 (except 10.1.2) ASTM C-143 ASTM C-231 ASTM C-1064 ASTM C-138 ASTM C-39 Batch time: Concrete: 640F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.0 Mix Design 1.0.: 7753 Placement Date: 12/03/2007 Weather Conditions: Sunny Time Sampled: 06:30am Temperature - Air: 630F Truck No: 120 Air Content: 5.5% Overall Placement Location: Paving - parking spaces 1 st section, northeast corner of project, from grid line N31.5 to N42, start 150' (continue) Sample Location: 160' north from grid line N31.1 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 8 1 12/10/2007 7 6.00 28.27 125,970 4,460 Cone/Split 8 2 12/31/2007 28 6.00 28.27 161,800 5,720 Shear 8 3 12/31/2007 28 6.00 28.27 142,820 5,050 Shear Average 5,390 8 4 01/28/2008 56 Remarks: north end, 225' north Notified on-site crew leader of test results Started: 02:15am Finished: 02:15pm Technician: Javier Martinez Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Altn: Mr. Emmit Coots (1-ec copy) 1-ec Polter Concrete Altn: Mr Ryan Skelly 1-cc Pacheco Koch Consulting Engineers Altn: Mr. Jack Evans 1-cc City of Coppell Altn: Mr. Larry Davis 1-cc City of Coppell Altn: Mr. Lee Stone Rone Engineering p~ ~ K. Scott Watson, AET Project Manager LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/KW) Page 8 of 8