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BRAUN <br /> INTERTEC <br /> Compressive Strength of Concrete Cylinder Report Date: 7/29/10 <br /> Test Method: ASTM C39,4x8 Cylinder LIMS WO#: 1005463 <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: 2 Mix Design: 3140S2172 <br /> Date Cast: 06/29/10 Supplier: Knife River <br /> Time Cast: 1:50 pm Specified Air(%): Not Required <br /> Date Received: 06/30/10 Specified Strength(psi): 4,000 <br /> Measured Slump(in.):(ASTM C143) 3 Truck Number: 1494 <br /> Measured Air(%): (ASTM C231) 1.9 Ticket Number: 1541094 <br /> Concrete Temp.(°F): (ASTM C 1064) 76 Cylinders per Set: 5 <br /> Air Temp. (°F): 70 Cylinders Cast By: Kollmann,Kaleb J <br /> Liquid Added On Site: 5 LB Fiber Reinforcing(per 5.00 cu.yds.) <br /> Placement Location: Building Interior,Slab on Grade,Bldg#5,Conference Room North of Cafeteria <br /> Sample Location/Notes: 5'SE of NW Corner <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 /> 2-1 7/6/10 1 6 7 44,940 4.00 12.57 3,580 3 N B2 <br /> 2-2 7/27/10 1 27 28 62,670 4.00 12.57 4,990 4 N El <br /> 2-3 7/27/10 1 27 28 61,660 4.00 12.57 4,910 3 N El <br /> 24 7/27/10 1 27 28 63,260 4.00 12.57 5,030 4 N El <br /> * Concrete sampled in accordance with ASTM C172 <br /> "Capping Method:N=ASTM C1231, Unbonded Caps S=ASTM C617,Suter 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 /> E1 The average 28 day test result meets or exceeds the specified strength. <br /> Types of Fracture <br /> E 0 9 S 1111 �/1/GtX <br /> TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Van Abel,Josh <br /> 1 approve the document Jul 29 2010 <br /> ver 1.3c Page 1 of 1 <br />