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BRAUN <br /> INTERTEC <br /> Compressive Strength of Concrete Cylinder Report Date: 9/30/10 <br /> Test Method: ASTM C39,4x8 Cylinder <br /> LIMS WO#: 1009590 <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: 8 Mix Design: 4556p <br /> Date Cast: 08/30/10 Supplier: Cemstone <br /> Time Cast: 1:53 pm Specified Air(%): 6.0+/-1.0 <br /> Date Received: 08/31/10 Specified Strength(psi): 4,000 <br /> Measured Slump(in.):(ASTM C143) 61/4 Truck Number: 812 <br /> Measured Air(%): (ASTM C231) 5.6 Ticket Number: 2511495 <br /> Concrete Temp.(°F): (ASTM C 1064) 83 Cylinders per Set: 5 <br /> Air Temp. (°F): 86 Cylinders Cast By: Hall,Courtney A. <br /> Liquid Added On Site: None <br /> Placement Location: Paving,Sidewalk,East side Entrance of Elem School,Building#765 <br /> Sample Location/Notes: YEAST OF DOOR <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 /> 8-1 9/6/10 1 6 7 40,020 4.01 12.63 3,170 2 N B2 <br /> 8-2 9/27/10 1 27 28 61,970 4.01 12.63 4,910 2 N E1 <br /> 8-3 9/27/10 1 27 28 64,660 4.01 12.63 5,120 4 N EI <br /> 84 9/27/10 1 27 28 62,770 4.01 12.63 4,970 4 N E1 <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 /> E1 The average 28 day test result meets or exceeds the specified strength. <br /> Types of Fracture <br /> X E 0 E [I [1 4 ve�&b <br /> TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Van Abel,Josh <br /> I approve the document Sep 30 2010 <br /> ver 1.3c Page 1 of 1 <br />