Loading...
Gateway BP(3.1)-LR071205 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303501 Project No.: 0712786 Date of Service: 10/30/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 1.0.: 23601524 Placement Date: 10/30/2007 Weather Conditions: Clear Time Sampled: 02:15am Temperature - Air: 600F Truck No: 1038 Air Content: 5.0% Overall Placement Location: Paving for fire lane on west side of building 2 Measured Slump (inches) 5.0 Batch time: 01 :27am Concrete: 650F Ticket No: 13600474 Unit Weight (pet): NA Sample Location: 75' northwest from southwest building corner at building 2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 1 1 11/06/2007 7 6.00 28.27 107,400 3,800 Shear 2 11/27/2007 28 6.00 28.27 150,010 5,310 Cone/Split 3 11/27/2007 28 6.00 28.27 150,090 5,310 Cone/Split Average 5,310 1 4 12/25/2007 56 Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CHfKW) Page 1 of 6 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303501 Project No.: 0712786 Date of Service: 10/30/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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.: 23601524 Placement Date: 10/30/2007 Weather Conditions: Clear Time Sampled: 04:30am Temperature - Air: 650F Truck No: 1034 Air Content: 5.0% Overall Placement Location: Paving for fire lane on west side of building 2 Measured Slump (inches) 5.0 Batch time: 03:45am Concrete: 710F Ticket No: 13600489 Unit Weight (pet): NA Sample Location: 60' northwest from southwest building corner at building 2 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 11/06/2007 7 6.00 28.27 78,290 2,770 Shear 2 2 11/27/2007 28 6.00 28.27 105,250 3,720 Cone/Split 2 3 11/27/2007 28 6.00 28.27 105,330 3,730 Shear Average 3,720 2 4 12/25/2007 56 Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, ltd. (CH/KW) Page 2 of 6 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303501 Project No.: 0712786 Date of Service: 10/30/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Req uirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 1.0.: 23601524 Placement Date: 10/30/2007 Weather Conditions: Clear Time Sampled: 06:00am Temperature - Air: 650F Truck No: 1034 Air Content: 6.0% Overall Placement Location: Paving for fire lane on west side of building 2 Measured Slump (inches) 6.0 Batch time: Concrete: 710F Ticket No: 13600499 Unit Weight (pet): NA Sample Location: 120' northwest from southwest corner of building 2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 3 1 11/06/2007 7 6.00 28.27 66,220 2,340 Shear 3 2 11/27/2007 28 6.00 28.27 100,810 3,570 Shear 3 3 11/27/2007 28 6.00 28.27 112,790 3,990 Shear Average 3,780 3 4 12/25/2007 56 LIMIT A nONS: 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 3 of 6 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 8908 Ambassador Row, Dallas, TX 75247 7701 W Little York, 8te 600, Houston, TX 77040 4421 Freidrich, 8te 195, Austin, TX 78744 Corporate Phone: (214) 630-9745 Report of Concrete Compressive Strength Test Report No.: 303501 Project No.: 0712786 Date of Service: 10/30/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 1.0.: 23601524 Placement Date: 10/30/2007 Weather Conditions: Clear Time Sampled: 07:00am Temperature - Air: 650F Truck No: 1364 Air Content: 5.0% Overall Placement Location: Paving for fire lane on west side of building 2 Measured Slump (inches) 6.0 Batch time: Concrete: 710F Ticket No: 13600519 Unit Weight (pet): NA Sample Location: 25' northwest from southwest corner of building 2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 4 1 11/06/2007 7 6.00 28.27 116,320 4,110 Cone/Split 4 2 11/27/2007 28 6.00 28.27 143,260 5,070 Cone/Split 4 3 11/27/2007 28 6.00 28.27 141,410 5,000 Cone/Split Average 5,030 4 4 12/25/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CHfKW) Page 4 of 6 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303501 Project No.: 0712786 Date of Service: 10/30/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 136 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" 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 1.0.: 23601524 Placement Date: 10/30/2007 Weather Conditions: Clear Time Sampled: 09:00am Temperature - Air: 650F Truck No: 1039 Air Content: 6.0% Overall Placement Location: Paving for fire lane on west side of building 2 Measured Slump (inches) 6.0 Batch time: 08:49am Concrete: 710F Ticket No: 13600547 Unit Weight (pet): NA Sample Location: 50' northwest from southwest corner of building 2 REPORT OF TESTS Concrete Compressive Cylinder 6" x 12" Cylinder Maximum Compressive Marked Date Age Diameter Area Load Strength Fracture Set No. Tested (days) (in) (in') (Ibs) (psi) Type 5 1 11/06/2007 7 6.00 28.27 78,540 2,780 Cone/Split 5 2 11/27/2007 28 6.00 28.27 111,290 3,940 Cone/Split 5 3 11/27/2007 28 6.00 28.27 112,480 3,980 Cone/Split Average 3,960 5 4 12/25/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusiye 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 6 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" Air (0/0): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 03:30am Temperature - Air: 600F Truck No: 1206 Air Content: 7.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 03:05am Concrete: 600F Ticket No: 88055806 Unit Weight (pet): NA Measured Slump (inches) 6.0 Sample Location: Building 1, entry, pour 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 1 1 11/03/2007 7 6.00 28.27 79,770 2,820 Shear 1 2 11/24/2007 28 6.00 28.27 119,620 4,230 Cone/Split 1 3 11/24/2007 28 6.00 28.27 108,410 3,830 Cone/Split Average 4,030 1 4 12/22/2007 56 Remarks: Water added at site: 20 gallons LIMITATIONS: The test results presented herein were prepared based upon the specifiC samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, ltd. (CH/ED) Page 1 of 8 Rone En~== Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 05:00am Temperature - Air: 600F Truck No: 1198 Air Content: 7.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 04:01am Concrete: 600F Ticket No: 88055812 Unit Weight (pct): NA Measured Slump (inches) 7.5 Sample Location: Building 1, pour 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) (inZ) (Ibs) (psi) Type 2 1 11/03/2007 7 6.00 28.27 73,660 2,610 Cone/Shear 2 2 11/24/2007 28 6.00 28.27 110,800 3,920 Cone/Split 2 3 11/24/2007 28 6.00 28.27 121,440 4,300 Cone/Split Average 4,110 2 4 12/22/2007 56 LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/ED) Page 2 of 8 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 06:30am Temperature - Air: 600F Truck No: 1277 Air Content: 7.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 05:27am Concrete: 600F Ticket No: 88055824 Unit Weight (pet): NA Measured Slump (inches) 7.5 Sample Location: Building 1, entry - pour 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) (in2) (Ibs) (psi) Type 3 1 11/03/2007 7 6.00 28.27 98,740 3,490 Shear 3 2 11/24/2007 28 6.00 28.27 129,810 4,590 Cone/Split 3 3 11/24/2007 28 6.00 28.27 133,390 4,720 Cone/Split Average 4,650 3 4 12/22/2007 56 Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/ED) Page 3 of 8 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 08:30am Temperature - Air: 600F Truck No: 1309 Air Content: 7.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 07:02am Concrete: 600F Ticket No: 88055836 Unit Weight (pet): NA Measured Slump (inches) 9.0 Sample Location: Building 2, entry - pour 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 4 1 11/03/2007 7 6.00 28.27 69,100 2,440 Cone/Split 4 2 11/24/2007 28 6.00 28.27 100,640 3,560 Shear 4 3 11/24/2007 28 6.00 28.27 102,420 3,620 Cone/Split Average 3,590 * 4 4 12/22/2007 56 * Does not comply with specified strength Remarks: Water added at site: 20 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/ED) Page 4 of 8 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 10:30am Temperature - Air: 660F Truck No: 1090 Air Content: 5.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 08:32am Concrete: 600F Ticket No: 88055850 Unit Weight (pct): NA Measured Slump (inches) 10.0 Sample Location: Building 2, entry - pour 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) (in2) (Ibs) (psi) Type 5 1 11/03/2007 7 6.00 28.27 76,500 2,710 Cone/Split 5 2 11/24/2007 28 6.00 28.27 100,610 3,560 Cone/Split 5 3 11/24/2007 28 6.00 28.27 102,000 3,610 Cone/Split Average 3,580 * 5 4 12/22/2007 56 * Does not comply with specified strength Remarks: Water added at site: 15 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in Quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services. Ltd. (CH/ED) Page 5 of 8 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 11 :30am Temperature - Air: 650F Truck No: 1219 Air Content: 5.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 10: 15am Concrete: 650F Ticket No: 88055863 Unit Weight (pet): NA Measured Slump (inches) 10.0 Sample Location: Building 2, entry - pour 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) (in2) (Ibs) (psi) Type 6 1 11/03/2007 7 6.00 28.27 60,300 2,130 Shear 6 2 11/24/2007 28 6.00 28.27 83,510 2,950 Shear 6 3 11/24/2007 28 6.00 28.27 98,450 3,480 Cone/Split Average 3,220 * 6 4 12/22/2007 56 * Does not comply with specified strength Remarks: Water added at site: 15 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CHIED) Page 6 of 8 Rone Engineering . Client: Transwestern Commercial Services 5001 Spring Valley Dallas, TX 75244 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.: 303257 Project No.: 0712786 Date of Service: 10/27/2007 Report Date: 12/05/2007 Project: Gateway Business Center 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: Constructors & Associates Concrete Supplier: Redi Mix Plant: 88 Specification Requirements Strength: 3,600 psi @ 28 days Slump (in.): 3" - 5" Air (%): 4% - 8% 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.: 23601524 Placement Date: 10/27/2007 Weather Conditions: Clear Time Sampled: 01 :30pm Temperature - Air: 650F Truck No: 1219 Air Content: 5.0% Overall Placement Location: Paving: building 2, entry - pour 5 Batch time: 11 :57am Concrete: 650F Ticket No: 88055883 Unit Weight (pet): NA Measured Slump (inches) 10.0 Sample Location: Building 2, entry - pour 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) (in2) (Ibs) (psi) Type 7 1 11/03/2007 7 6.00 28.27 87,090 3,080 Shear 7 2 11/24/2007 28 6.00 28.27 117,620 4,160 Cone/Split 7 3 11/24/2007 28 6.00 28.27 118,620 4,200 Cone/Split Average 4,180 7 4 12/22/2007 56 Remarks: Water added at site: 10 gallons LIMITATIONS: The test results presented herein were prepared based upon the specific samples provided for testing. We assume no responsibility for variation in quality (composition, appearance, etc.) or any other feature of similar subject matter provided by persons or conditions over which we have no control. Our letters and reports are for the exclusive use of the clients to whom they are addressed and shall not be reproduced except in full without the written approval of Rone Engineering Services, Ltd. (CH/ED) Page 7 of 8