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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#: 1005556 <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: 3 Mix Design: 4556P <br /> Date Cast: 06/30/10 Supplier: Cemstone <br /> Time Cast: 11:39 am Specified Air(%): 6.0+/-1.0 <br /> Date Received: 07/01/10 Specified Strength(psi): 4,000 <br /> Measured Slump(in.):(ASTM C143) 5 1/4 Truck Number: 817 <br /> Measured Air(%): (ASTM C231) 5.2 Ticket Number: 2469446 <br /> Concrete Temp.(°F): (ASTM C 1064) 75 Cylinders per Set: 5 <br /> Air Temp. (°F): 78 Cylinders Cast By: Rodman,Scott W <br /> Liquid Added On Site: None <br /> Placement Location: Building Exterior,Foundation Wall,Loading dock walls,West side of building <br /> Sample Location/Notes: NE comer of loading dock <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 /> 3-01 7/7/10 1 6 7 50,300 4.01 12.63 3,980 4 N B2 <br /> 3-02 7/28/10 1 27 28 75,660 4.01 12.63 5,990 5 N E1 <br /> 3-03 7/28/10 1 27 28 74,310 4.01 12.63 5,880 3 N El <br /> 3-04 7/28/10 1 27 28 75,980 4.01 12.63 6,020 4 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 /> E1 The average 28 day test result meets or exceeds the specified strength. <br /> Types of Fracture <br /> .el <br /> TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Van Abel,Josh <br /> I approve the document Jul 29 2010 <br /> ver 1.3c Page 1 of 1 <br />