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BRAUN <br /> I NTERTEC <br /> Compressive Strength of Concrete Cylinder Report Date: 7/29/10 <br /> Test Method; ASTM C39,4x8 Cylinder <br /> LIMS WO#: 1005305 <br /> Client: Chad Rettke Project: BL-08-02099E <br /> Kraus-Anderson Construction Company Orono IS/ES 2010 Phase 2 Additions <br /> PO Box 158 685-765 Old Crystal Bay Road N <br /> 8625 Rendova St NE,Midwest Division Orono,MN 55356 <br /> Circle Pines,MN 55014-0158 Client Project: 90271 <br /> Field Test Conditions and Results ASTM C31 <br /> Set Number: I Mix Design: 3067P <br /> Date Cast: 06/25/10 Supplier: Cemstone <br /> Time Cast: 11:49 am Specified Air(%): Not Required <br /> Date Received: 06/28/10 Specified Strength(psi): 3,000 <br /> Measured Slump(in.):(ASTM C143) 4 Truck Number: 528 <br /> Measured Air(%): (ASTM C231) 2.4 Ticket Number: 2466747 <br /> Concrete Temp.(°F):(ASTM C 1064) 74 Cylinders per Set: 5 <br /> Air Temp. (°F): 73 Cylinders Cast By: Scott,Andrew P <br /> Liquid Added On Site: None <br /> Placement Location: ES,Building Exterior,Footing,Loading Dock Strip Footings <br /> Sample Location/Notes: west side of school <br /> Compression Test Results <br /> Field Lab Test Max. Cylinder Cylinder <br /> Break Cure Cure Age Load Diameter Area Strength Fracture Capping Remarks <br /> Sample No. Date (days) (days) (days) (pounds) (in.) (sq.in.) (psi) Type Method** Code(s) <br /> 1-01 7/2/10 3 4 7 31,360 4.00 12.57 2,500 1 N B2 <br /> 1-02 7/23/10 3 25 28 51,380 4.00 12.57 4,090 2 N E1 <br /> 1-03 7/23/10 3 25 28 54,650 4.00 12.57 4,350 2 N E1 <br /> 1-04 7/23/10 3 25 28 51,690 4.00 12.57 4,110 2 N El <br /> * Concrete sampled in accordance with ASTM C172 <br /> **Capping Method:N=ASTM C1231, Unbonded Caps S=ASTM C617,Sulfur Caps <br /> Break Remarks: <br /> B2 The 7 day test result projects that the specified strength will likely be met at 28 days according to a typical <br /> age-strength relationship. <br /> El The average 28 day test result meets or exceeds the specified strength. <br /> Types of Fracture <br /> E 0 9 E 1111 <br /> TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 6 TYPE 6 Van Abel,Josh <br /> I approve the document Jul 29 2010 <br /> ver 1.3c Page 1 of 1 <br />