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RC Townhomes-LR050512 MACTEC Engineering and Consulting 2200 Gravel Drive Fort Worth, Texas 76118-7123 Tel: 817-284-775~, Fax: 817-589-1420 REPORT OF CONCRETE COMPRESSIVE STRENGTH CLIENT: J.R. ROSE DEVELOPMENT 410 SPIATNAKER DR. ALLEN, TX 75013 PROJECT: RIVERCHASE TOWNHOMES ADDITIONS COPPELL PAGE 1 OF 2 PROJECTNO.: 9023912 REPORTNO.: 502406 DATEOFSERVICE: 4/14/2005 AUTHORIZATION: REPORTDATE: 5/12/2005 SERVICES: Sample concrete as location of placement, perform required field tests, prepare and test concrete compressive strength specimens. CONTRACTOR: UNDERGROUND UTILITIES CONCRETE SUPPLIER: SOUTHERN STAR PLANT: 27 SPECIFICATION REQUIREMENTS STRENGTH: 36©0psi ® 28 DAYS SLUMP: 5" METHOD OF TEST SAMPLING: MOLDING & CURING: SLUMP: TEMPERATURE: AIR CONTENT: UNIT WEIGHT: CAPPING/PADS: TESTING: AIR: 3.5-6.5% ASTM C172 ASTM C31 ASTM C143 ASTM C1064 ASTM C231 ASTM C138 ASTM C1231 ASTM C39 CYLINDER MARKED SET NO. 1 2 3 4 PROJECT DATA CLASS OF CONCRETE: 7724 DATE OF PLACEMENT: 4/14/2005 TIME SAMPLED: 08:10AM BY: Steve Campbell TEMPERATURE (DegF) - AIR: 53 CONCRETE; 71 TRUCKNO: 1020 TICKETNO: 777207 MEASURED SLUMP (in.): 5.5 0 AIR CONTENT(%): 5 , 3 % UNIT WEIGHT(pcf): NA REPORT OF TESTS CONCRETE COMPRESSIVE STRENGTH - 6 X 12 CYLINDERS MAXIMUM COMPRESSIVE DATE AGE DIAMETER AREA LOAD STRENGTH TESTED (days) (in.) (sq.in.) (lbs. force) ~psi) FRACTURE TYPE 4/21/2005 7 6.00 28.27 105940 3750 CONE 4/21/2005 7 6.00 28.27 96710 3420 CONE 5/12/2005 28 6.00 28.27 136080 10 TYPE 5/12/2005 28 6.00 28.27 134100 ~ 4740 TYPE 1 REMARKS Technician: Steve Campbell Started: 06:00AM Stopped: ll:30AM Report Of Tests Continued On Page 2 . '/MACTEC J.R. ROSE DEVELOPMENT PROJECT NO. 9023912 DATE OFSERVICE: 4/14/2005 REPORT NO. 502406 PAGE 2 OF 2 SET NO. 2 REPORT OF CONCRETE COMPRESSIVE STRENGTH (Cont ~nued) CONTRACTOR: UNDERGROUND UTILITIES CONCRETE SUPPLIER: SOUTHERN STAIR PLANT: 27 SPECIFICATION REQUIREMENTS STRENGTH: 3600psi @ 28 DAYS SLUMP: 5" AIR: 3.5-6.5% METHOD OF TEST SAMPLING: MOLDING & CURING: SLUMP: TEMPERATURE: AIR CONTENT: UNIT WEIGHT: CAPPING/PADS: TESTING: ASTM C172 ASTM C31 ASTM C143 ASTM C1064 ASTM C231 ASTM C138 ASTM C1231 ASTM C39 CYLINDER MARKED DATE SET NO. TESTED PROJECT DATA CLASS OF CONCRETE: 7724 DATE OF PLACEMENT: 4/14/2005 TIME SAMPLED: 10: 05A-M BY: Steve Campbell TEMPERATURE{DegF)-AIR:60 CONCRETE: 69 TRUCKNO: 931 TICKETNO: 777217 MEASURED SLUMP (in.): 5.00 AIR CONTENT(%): 5% UNIT WEIGHT(pcf): NA LOCATION OF PLACEMENT: PAVING CULDESAC 5'W OF LOT 23, REPORT OF TESTS CONCRETE COMPRESSIVE STRENGTH - 6 X 12 CYLINDERS MAXIMUM COMPRESSIVE AGE DIAMETER AREA LOAD STRENGTH {days) (in.) (sq.in.) (lbs. force} (psi) FRACTURE TYPE REMARKS 2 1 4/21/2005 7 6.00 2 2 4/21/2005 7 6.00 2 3 5/12/2005 28 6.00 2 4 5/12/2005 28 6.00 28.27 93610 3310 CONE 28.27 97430 3450 CONE 28.27 132290 TYPE 1 28.27 130010 4600 TYPE 1 Technician: Steve Campbell Report Distribution: 1 JR ROSE DEVELOPMENT 1 CITY OF COPPELL ENGINEERING DP 1I MARGARET GOFF/TOWN HOM ES ALLEN Started: 06:00AJ~ Stopped: ll:30AJ~ Tim Begole, CET.