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Duke Lesley 1A-LR071106 Rone En~~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 , 8908 Ambassador Row, Dallas, TX 75247 7701 Iw 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.: 303259 Project Neb.: 0713408 Date of S$rvice: 10/27/2007 Report Date: 11/06/2007 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 S!)ecification 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 03:30am Temperature - Air: 450F Truck No: 144 Air Content: 1.8% Overall Placement Location: Building slab - I to K, 2 to 12 Ba~h time: Concrete: 670F Tic~et No: NA Unit Weight (pcf): NA Measured Slump (inches) 6.0 Sample Location: Grid line J.8-2.2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Co,,"pressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 11/03/2007 7 6.00 28.27 119,350 4,220 Shear 1 2 11/24/2007 28 1 3 11/24/2007 28 1 4 12/22/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assuml! 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 ha~e 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 apprqval of Rone Engineering Services, Ltd. (CH/JB) Page 1 of 9 Rone Engineering . Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 i 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 NQ.: 303259 Project N().: 0713408 Date of Service: 10/27/2007 Report D..te: 11/06/2007 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 (%): 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.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 04:44am Temperature - Air: 400F Truck No: 134 Air Content: 1.5% Overall Placement Location: Building slab - I to K, 2 to 12 Ba~h time: Concrete: 650F Ticl<et No: NA Un.t Weight (pet): NA Measured Slump (inches) 6.0 Sample Location: Grid line 1.8-3.2 REPORT OF TESTS Cylinder Marked Date Set No. Tested 2 1 11/03/2007 2 2 11/24/2007 2 3 11/24/2007 2 4 12/22/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Remarks: Notified on site crew leader of test results Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 125,370 Cojnpressive $trength (psi) 4,430 Fracture Type Cone/Split Area (in") 28.27 LIMIT A nONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum~ 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 ha~e 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 apPrQval of Rone Engineering Services, Ltd. (CHlJB) Page 2 of 9 Rone En~== Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 1 8908 Ambassador Row, Dallas, TX 75247 77011 W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Complressive Strength Test Report N<I>>.: 303259 Project N4>.: 0713408 Date of S,rvice: 10/27/2007 Report Date: 11/06/2007 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 (%): 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.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 06:25am Temperature - Air: 490F Truck No: 119 Air Content: 1.1% Overall Placement Location: Building slab - I to K, 2 to 12 Ba.ch time: Concrete: 680F Ticket No: NA Unit Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: Grid line J.1-4.2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Co~pressive Marked Date Age Diameter Area Load $trength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 11/03/2007 7 6.00 28.27 131,450 4,650 Shear 3 2 11/24/2007 28 3 3 11/24/2007 28 3 4 12/22/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum~ no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we ha~e no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written appr~val of Rone Engineering Services, Ltd. (CHIJB) Page 3 of 9 Rone En2~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 i 8908 Ambassador Row, Dallas, TX 75247 7701iw Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 303259 Project NO.: 0713408 Date of S,rvice: 10/27/2007 Report Date: 11/06/2007 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compre$ive 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 (%): 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 I.D.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 08:07am Temperature - Air: 450F Truck No: 129 Air Content: 1.2% Overall Placement Location: Building slab - I to K, 2 to 12 Ba~h time: Co~crete: 690F Ticket No: NA Unlt Weight (pcf): NA Measured Slump (inches) 5.75 Sample Location: Grid line 1.2-7.3 REPORT OF TESTS Cylinder Marked Date Set No. Tested 4 1 11/03/2007 4 2 11/24/2007 4 3 11/24/2007 4 4 12/22/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 120,240 Compressive $trength (psi) 4,250 Fracture Type Cone/Split Area (in') 28.27 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum~ 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 ha~e 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 apprdval of Rone Engineering Services, Ltd. (CH/JB) Page 4 of 9 Rone En2== Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 i i 8908 Ambassador Row, Dallas, TX 75247 77011 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 Nc>.: 303259 Project Np.: 0713408 Date of S~rvice: 10/27/2007 Report D,te: 11/06/2007 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 (%): 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 I.D.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 09:45am Temperature - Air: 550F Truck No: 102 Air Content: 1.2% Overall Placement Location: Building slab - I to K, 2 to 12 Ba.ch time: Co~crete: 700F Ticl<et No: NA Unit Weight (pcf): NA Measured Slump (inches) 4.5 Sample Location: Grid line J.7-6.5 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Co~pressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 5 1 11/03/2007 7 6.00 28.27 100,380 3,550 Cone/Split 5 2 11/24/2007 28 5 3 11/24/2007 28 5 4 12/22/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assurrje 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 appr~val of Rone Engineering Services, Ltd. (CH/JB) Page 5 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.: 303259 Project N~.: 0713408 Date of S,rvice: 10/27/2007 Report Date: 11/06/2007 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 P~nt Ons~ 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 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 11 :45am Temperature - Air: 650F Truck No: 144 Air Content: 1.3% Overall Placement Location: Building slab - I to K, 2 to 12 BatCh time: Coli1crete: 750F Ticl<et No: NA Un. Weight (pct): NA Measured Slump (inches) 5.0 Sample Location: Grid line J.5-8.1 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Cop,pressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 6 1 11/03/2007 7 6.00 28.27 117,820 4,170 Shear 6 2 11/24/2007 28 6 3 11/24/2007 28 6 4 12/22/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum$ 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 hav~ 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/JB) Page 6 of 9 Rone En~== Client: Project: uke Construction, LP . Potter Concrete Plant: On site 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 ! 8908 Ambassador Row, Dallas, TX 75247 77011 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.: 303259 Project Np.: 0713408 Date of Service: 10/27/2007 Report D~lte: 11/06/2007 PROJECT DATA Mix Design 1.0.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 01 :OOpm Temperature - Air: 650F Truck No: 135 Air Content: 1.3% Overall Placement Location: Building slab - I to K, 2 to 12 Batch time: COflcrete: 780F Tiqket No: NA UnIt Weight (pet): NA Measured Slump (inches) 5.0 Sample Location: Grid line 1.3-9.3 REPORT OF TESTS Cylinder Marked Date Set No. Tested 7 1 11/03/2007 7 2 11/24/2007 7 3 11/24/2007 7 4 12/22/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Remarks: Water added at site: 10 gallons Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 110,570 CoImpressive Strength (psi) 3,910 Fracture Type Shear Area (in") 28.27 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assurT1e 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 hate 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 apprqval of Rone Engineering Services, Ltd. (CH/JB) Page 7 of 9 Rone Engineering .- Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 :1 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 Complressive Strength Test I Report Nell.: 303259 Project No.: 0713408 Date of Service: 10/27/2007 Report Date: 11/06/2007 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 (%): 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.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 03:00pm Temperature - Air: 670F Truck No: 102 Air Content: 1.1% Overall Placement Location: Building slab - I to K, 2 to 12 Ba~h time: Co~crete: 700F Tic~et No: NA Un~ Weight (pcf): NA Measured Slump (inches) 7.0 Sample Location: Grid line 10.5-1.9 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum COl;T1pressive Marked Date Age Diameter Area Load $trength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 8 1 11/03/2007 7 6.00 28.27 104,880 3,710 Cone/Split 8 2 11/24/2007 28 8 3 11/24/2007 28 8 4 12/22/2007 56 Remarks: Water added at site: 5 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assum~ no responsibility for variation in quality (composition. appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we hav~ no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/JB) Page 8 of I Rone En~~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 I 8908 Ambassador Row, Dallas, TX 75247 7701i W Little York, Ste 600, Houston, TX 77040 4421 Freidrich, Ste 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 303259 Project NO.: 0713408 Date of Service: 10/27/2007 Report D$te: 11/06/2007 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 (%): 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 I.D.: 9349 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 04:00pm Temperature - Air: 680F Truck No: 144 Air Content: 1.3% Overall Placement Location: Building slab - I to K, 2 to 12 Sateh time: Cor)crete: 750F Tic~et No: NA Unit Weight (pet): NA Measured Slump (inches) 6.0 Sample Location: Grid line 1.9-11.5 REPORT OF TESTS Cylinder Marked Date Set No. Tested 9 1 11/03/2007 9 2 11/24/2007 9 3 11/24/2007 9 4 12/22/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 143,330 COJ1lpressive ~trength (psi) 5,070 Fracture Type Cone/Split Area (in.) 28.27 Technician: Javier Martinez Started: 02:15am Finished: Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Emmit Coots (1-ec copy) 1-cc Potter Concrete Attn: Mr. Ryan Skelly 1-cc Pacheco Koch Consulting Engineers Attn: Mr. Jack Evans 1-cc City of Coppell Attn: Mr. Larry Davis 1-cc City of Coppell Attn: Mr. Lee Stone M4~;;; K. Scott Watson, AET Project Manager ~ LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assumeino responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we hav~ 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 approvl;ll of Rone Engineering Services, Ltd. (CH/JB) Page 9 01.9 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 I Report No.: 303428 Project NCl>.: 0713408 Date of S$rvice: 10/29/2007 Report Date: 11/06/2007 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compres$;ive 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: 259 Specification Requirements Strength: 3,000 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 Bat~h time: 12:05pm Coricrete: 760F Ticket No: 59016290 Unit Weight (pet): NA Measured Slump (inches) 5.0 Mix Design 1.0.: 830J15D1 Placement Date: 10/29/2007 Weather Conditions: Sunny Time Sampled: 02:30pm Temperature - Air: 720F Truck No: 1314 Air Content: NA Overall Placement Location: Pier E/13 sample, overall G/22 , G21, G/20, G/13, F/13, E/13, D/13, C/13, 8/13, F/14, F/15 Sample Location: Pier E/13 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Maximum Load (Ibs) 66,250 Cylinder Marked Date Set No. Tested 1 1 11/05/2007 2 11/26/2007 3 11/26/2007 1 4 12/24/2007 Age (days) 7 Diameter (in) 6.00 28 28 56 Remarks: Water added at site: 15 gallons Area (in') 28.27 COrfJpressive Strength (psi) 2,340 Fracture Type Shear Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Emmit Coots (1-ec copy) 1-cc Potter Concrete Attn: Mr. Ryan Skelly 1-cc Pacheco Koch Consulting Engineers Attn: Mr. Jack Evans 1-cc City of Coppell Attn: Mr. Larry Davis 1-cc City of Coppell Attn: Mr. Lee Stone Rone ~ngineering s.. Report 303427 f", te"',;o;ao tim.~ K. Scott Watson, AET Proj~ Manager Technician: Denny Harris ~ LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume ~o 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 "0 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 approv<ll of Rone Engineering Services, Ltd. (CH/JB) Page 1 of 1 Rone En~~ Client: Duke Construction, LP 14241 Dallas Pkwy, Ste 1000 Dallas, TX 75254-2936 I 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.: 303269 Project N~.: 0713408 Date of Service: 10/27/2007 Report DcJte: 11/06/2007 Project: Point West VI Coppell, Texas Services: Obtain samples of fresh concrete at the placement locations, perform required testing, cast compresl;ive 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: 3,000 psi @ 28 days Slump (in.): 5" - 7" 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 I.D.: 9341 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 09:20am Temperature - Air: 620F Truck No: 134 Air Content: NA Overall Placement Location: See Pier Inspection for 10/27/07 Bat~h time: 09:07am Concrete: 850F Tic~et No: 8325 Unit Weight (pet): NA Measured Slump (inches) 6.0 Sample Location: Piers 0/16, 0/17 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum co~pressive Marked Date Age Diameter Area Load rength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 11/03/2007 7 6.00 28.27 85,920 3,040 Cone/Split 1 2 11/24/2007 28 1 3 11/24/2007 28 1 4 12/22/2007 56 Report Distribution: Orig: Duke Construction, LP (Dallas, TX) Attn: Mr. Emmit Coots (1-ec copy) 1-cc Potter Concrete Attn: Mr. Ryan Skelly 1-cc Pacheco Koch Consulting Engineers Attn: Mr. Jack Evans 1-cc City of Coppell Attn: Mr. Larry Davis 1-cc City of Coppell Attn: Mr. Lee Stone Rone l:ngineering s.. Report 303268 'o,'ed,""," ';me p~ K. ScottlWatson, AET Project Manager Technician: Jimmy Hall ~ 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 havelno 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 approv$1 of Rone Engineering Services, Ltd. (CH/JB) Page 1 of 1