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Duke Lesley 1A-LR080318 Rone Engineering [:;.;.'>". - ~ '; I ~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8908 Ambassador Row, Dallas, TX T5247 7701 W Little York, Ste 600, Houston, TX 77040 442'I Fre:idrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 530.9745 Report of Concrete Compressive Strength Test Report No.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 Project: Point West VI, I A 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) 1 1 01/28/2008 7 6.00 28.27 135,000 4,770 1 2 02/18/2008 28 6.00 28.27 183,720 6,500 1 3 02/18/2008 28 6.00 28.27 190,650 6,740 Average 6,620 1 4 03/17/2008 56 6.00 28.27 208,040 7,360 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 ~r] ~Q] R:nl. ljJJ Type 3 E;] DO D Type 1 Type 2 Type 4 Type 5 PROJECT DATA Mix Design 1.0.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 03:30am Temperature - Air: 44DF Truck No: 126 Air Content: 4.3% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 03: 19am Concrete: 53DF Ticket No: 18716 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: 900' west from northeast corner of building 6, sample taken from pump Fracture Type Type2 Type2 Type5 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. (CH/KW) Page 1 of 9 Rone Engineering ?"ir,' . ,- ". 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.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 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) 2 1 01/28/2008 7 6.00 28.27 134,920 4,770 2 2 02/18/2008 28 6.00 28.27 180,450 6,380 2 3 02/18/2008 28 5.99 28.18 193,070 6,850 Average 6,620 2 4 03/17/2008 56 6.00 28.27 211,440 7,480 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 F)(lrxl rrmm RTIl n rJD D" Lj Ll ~'J L1 L~JJ U --- --': Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design I.D.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 04:00am Temperature - Air: 430F Truck No: 103 Air Content: 4.5% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 03:51am Concrete: 520F Ticket No: 18722 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 865' west from northeast corner of building 6, sample taken from pump Fracture Type Type5 Type6 Type3 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. (CH/KW) Page 2 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.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 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) - 3 1 01/28/2008 7 6.00 28.27 133,070 4,710 3 2 02/18/2008 28 6.00 2827 182,840 6,470 3 3 02/18/2008 28 6.00 28.27 187,640 6,640 Average 6,550 3 4 03/17/2008 56 6.00 2827 212,460 7,510 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 ~lPQ]r. I,..J.. _''''. ..-- --, Type 2 ~ ~ DO D Type 1 Type 3 Type 4 Type 5 PROJECT DATA Mix Design I.D.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 04:46am Temperature - Air: 430F Truck No: 126 Air Content: 4.3% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 04:30am Concrete: 530F Ticket No: 18731 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: 835' west from northeast corner of building 6, sample taken from pump Fracture Type Type2 Type2 Type6 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 dients 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.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 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) 4 1 01/28/2008 7 6.00 28.27 126,460 4,470 4 2 02/18/2008 28 6.00 28.27 175,050 6,190 4 3 02/18/2008 28 6.00 28.27 186,100 6,580 Average 6,390 4 4 03/17/2008 56 5.99 28.18 197,720 7,020 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 [~rJ ~QJ tIT] ~ DO D ~.t.t ~--==~ Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 PROJECT DATA Mix Design 1.0.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 06:40am Temperature - Air: 430F Truck No: 103 Air Content: 4.2% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 06:25am Concrete: 520F Ticket No: 18746 Unit Weight (pcf): NA Measured Slump (inches) 5.5 Sample Location: 760' west from northeast corner of building 6, sample taken from pump Fracture Type Type5 Type6 Type2 Type2 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. (CHfKW) 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 Uttle 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.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 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 01/28/2008 7 6.00 28.27 110,350 3,900 5 2 02/18/2008 28 6.00 28.27 162,800 5,760 5 3 02/18/2008 28 6.00 28.27 166,500 5,890 Average 5,820 5 4 03/17/2008 56 6.00 28.27 174,190 6,160 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 ~E3 ~Q] f-IE EJ DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design 1.0.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 07:30am Temperature - Air: 430F Truck No: 126 Air Content: 4.3% Overall Placement Location: Paving parking lot north side of building 6 Measured Slump (inches) Batch time: 07:17am Concrete: 500F Ticket No: 18757 Unit Weight (pcf): NA Sample Location: 728' west from northeast corner of building 6, sample taken from pump Fracture Type Type2 Type2 Type5 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. (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.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 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) 6 1 01/28/2008 7 6.00 28.27 111 ,190 3,930 6 2 02/18/2008 28 6.00 28.27 172,950 6,120 6 3 02/18/2008 28 6.00 28.27 163,530 5,780 Average 5,950 6 4 03/17/2008 56 6.00 28.27 197,050 6,970 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 ~~ ~Q] DIE ~ DO D Type 1 Type 2 Type 3 Type 4 Type 5 PROJECT DATA Mix Design I.D.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 08:35am Temperature - Air: 420F Truck No: 139 Air Content: 4.2% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 08: 19am Concrete: 500F Ticket No: 18765 Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: 692' west from northeast corner of building 6, sample taken from pump Fracture Type Type2 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. (CH/KW) Page 7 of 9 Rone Engineering .; . ~-( - Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 8903 Ambassador Row, Dallas, TX 75247 7701 W Little York, Ste 600, Houstor!, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 311316 Project No.: 0713408 Date of Service: 01/21/2008 Report Date: 03/18/2008 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perfonm 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 I.D.: 7753 Placement Date: 01/21/2008 Weather Conditions: Cloudy Time Sampled: 09: 1 Oam Temperature - Air: 410F Truck No: 135 Air Content: 4.2% Overall Placement Location: Paving parking lot north side of building 6 Batch time: 08:45am Concrete: 500F Ticket No: 18771 Unit Weight (pcf): NA Measured Slump (inches) 5.0 Sample Location: 647' west from northeast corner of building 6, sample taken from pump 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 01/28/2008 7 6.00 28.27 103,340 3,650 TypeS 7 2 02/18/2008 28 6.00 28.27 160,680 5,680 Type2 7 3 02/18/2008 28 6.00 28.27 164,050 5,800 Type2 Average 5,740 7 4 03/17/2008 56 6.00 28.27 191,130 6,760 TypeS ~E3 ~UJ.J ~__.l.~ rnJ ~ DO D '-. LX!.. 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 B of 9