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BRAUN <br /> INTERTEC <br /> Compressive Strength of Concrete Cylinder Report Date: 8/6/10 <br /> Test Method: ASTM C39,4x8 Cylinder <br /> LIMS WO#: 1005798 <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: 4 Mix Design: 4056P <br /> Date Cast: 07/06/10 Supplier: Cemstone <br /> Time Cast: 1:14 pm Specified Air(%): Not Required <br /> Date Received: 07/07/10 Specified Strength(psi): 4,000 <br /> Measured Slump(in.):(ASTM C143) 5 Truck Number: 762 <br /> Measured Air(%): (ASTM C231) 5.2 Ticket Number: Not Given <br /> Concrete Temp.(°F): (ASTM C 1064) 81 Cylinders per Set: 5 <br /> Air Temp. (°F): 90 Cylinders Cast By: Petersen,Brian G. <br /> Liquid Added On Site: None <br /> Placement Location: Building Exterior,Grade Beam,Loading Dock at Door E6 <br /> Sample Location/Notes: North End <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 /> 4-1 7/13/10 1 6 7 34,370 4.01 12.63 2,720 5 N B2 <br /> 4-2 8/3/10 1 27 28 55,800 4.01 12.63 4,420 4 N El <br /> 4-3 8/3/10 1 27 28 56,480 4.01 12.63 4,470 3 N E1 <br /> 44 8/3/10 1 27 28 56,330 4.01 12.63 4,460 4 N E1 <br /> * Concrete sampled in accordance with ASTM C172 <br /> **Capping Method:N=ASTM C1231, Unbonded Caps S=ASTM C617,Sul,fur 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 /> EI The average 28 day test result meets or exceeds the specified strength. <br /> Types of Fracture <br /> X M 9 E 11 r] -/t16�b <br /> TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Van Abel,Josh <br /> I approve the document Aug 06 2010 <br /> ver 1.3c Page 1 of 1 <br />