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Home My WebLink About32 BRAUN INTERTEC Letter of Transmittal 32 The Science You Build On. Client: Stillwater Area Public Schools Project No: 81602671 Project: Stillwater High School Renovations and Additions Date: October 21, 2016 Braun Intertec Corporation 11001 Hampshire Ave. S. Bloomington, MN 55438 To: Kristen Hoheisel Phone: 651-351-3840 Stillwater Area Public Schools Email: hoheiselk@stillwaterschools.org Independent School District#834 1875 Greeley St S Stillwater, MN 55082 Re: Stillwater BLVD N, Oak Park Heights, MN (Documents Sent Comments Concrete Tests Sets 81-83,91 'Copy List Jared Olson,BKBM Engineers Jack Bronczyk,Kraus-Anderson Construction Company Daniel Martin,Braun Intertec Corporation Jeff Moore,Kraus-Anderson Construction Company Steven Martin,Braun Intertec Corporation Kristy Casper,Kraus-Anderson Construction Company Aaron Fields,BWBR Architects, Inc. Randy LaFaive,Market&Johnson Michael Smunty, BWBR Architects, Inc. Julie Hultman,City of Oak Park Heights Dustin Phillips,Kraus-Anderson Construction Company Contact Information: Sent By: Laurie Dudero Email: Idudero@braunintertec.com Phone: (651)487-7003 Rev:05/05/2014 Providing engineering and environmental solutions since 1957 BRAUN Compressive Strength of Concrete Report Date:10/21/2016 Sample:121519 INTERTEC Test Method:ASTM C39 Client: Project: 1826 Buerkle Road B1602671 Saint Paul,MN 55110 Stillwater Area Public Schools Phone:651-487-3245 Independent School District#8341875 Greeley St S Stillwater High School Renovations and Additions Stillwater,MN 55082 Stillwater BLVD N Oak Park Heights,MN Sample Details Set#: 81 Technician: Singer,Zach Batched: Specimen Size: 4"X 8" Cast By: Singer,Zach Sampled: 07:10 CDT Specimens In Set: 5 Date Cast: 09/21/16 Cast: 07:25 CDT Truck/Ticket#: 784/3882837 Sampled From: Chute Truck Empty: Contractor: Market and Johnson Placement Method: Buggy Placement Time: Location Placement Location: Building Interior-Slab on Grade Location Details: Zone 10 slab on grade Sample Location/Notes: SW corner of zone 10 Batch Log Specifications Supplier: Gemstone Mix Design: SHS5065 Strength: 4000(psi) Plant: 3 Lakeland,MN Air: Not Required- (%) On-Site Admixtures: 0.50 Gal HRWRA-High Range Water Reducing Admixture(10.5 yd3) Field Measurements Weather: Partly cloudy Slump(in): 5-1/2(ASTM C143) Plastic Unit Weight: Air Temperature(F): 61 Concrete Temp(F): 74(ASTM C1064) Air Content: 3.3(ASTM C231) Load Volume: 10.5(yd3) Lab Test Results Testing Lab:Bloomington,11001 Hampshire Ave S,Bloomington,MN,55438 Specimen Test Test Field/Lab Average Cylinder Cylinder Max Load Strength Fracture Break Capping Number Age Days Date Cure Days Diameter(in) Area(int) (lbs) (psi) Type Remark Method 81-1 7 09/28/16 1/6 4.01 12.63 67,840 5,370 4 1A N 81-2 28 10/19/16 1/27 4.00 12.57 85,240 6,780 4 1B N 81-3 28 10/19/16 1/27 4.00 12.57 80,660 6,420 4 1B N 81-4 28 10/19/16 1/27 4.00 12.57 82,140 6,540 4 1B N 81-5 35 H 10/26/16 1/34 Test Age Average Strengths(psi):7 Day-5370,28 Day-6580 Break Remarks Capping Methods 1A:The test result is for informational purposes. N:ASTM C1231,Unbonded Caps 1 B:The result meets or exceeds the specified compressive strength. x \ r n TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Steve Martin 10/21/2016 Page 1 of 1 BRAUN Compressive Strength of Concrete Report Date:10/21/2016 Sample:121538 INTERTEC Test Method:ASTM C39 TAM&ImiesY Build On. Client: Project: 1826 Buerkle Road Saint Paul,MN 55110 Stillwater Area Public Schools B1602671 Phone:651-487-3245 Independent School District#8341875 Greeley St S Stillwater High School Renovations and Additions Stillwater,MN 55082 Stillwater BLVD N Oak Park Heights,MN Sample Details Set#: 82 Technician: Singer,Zach Batched: Specimen Size: 4"X 8" Cast By: Singer,Zach Sampled: 09:15 CDT Specimens In Set: 5 Date Cast: 09/21/16 Cast: 09:30 CDT Truck!Ticket#: 874/3883050 Sampled From: Chute Truck Empty: Contractor: Market and Johnson Placement Method: Buggy Placement Time: Location Placement Location: Building Interior-Slab on Grade Location Details: Zone 10 slab on grade ' Sample Location!Notes: Midsection of sog Batch Log Specifications Supplier: Gemstone Mix Design: SHS5065 Strength: 4000(psi) Plant: 3 Lakeland,MN Air: Not Required- (%) On-Site Admixtures: 0.50 Gal MRWRA-Mid Range Water Reducing Admixture(10.5 yd3) Field Measurements Weather: Cloudy Slump(in): 8-1/4(ASTM C143) Plastic Unit Weight: Air Temperature(F): 63 Concrete Temp(F): 75(ASTM C1064) Air Content: 3.1 (ASTM C231) Load Volume: 10.5(yd3) Lab Test Results Testing Lab:Bloomington,11001 Hampshire Ave S,Bloomington,MN,55438 Specimen Test Test Field/Lab Average Cylinder Cylinder Max Load Strength Fracture Break Capping Number Age Days Date Cure Days Diameter(in) Area(in2) (lbs) (psi) Type Remark Method 82-1 7 09/28/16 1/6 4.01 12.63 69,610 5,510 4 1A N 82-2 28 10/19/16 1/27 4.00 12.57 89,480 7,120 4 1B N 82-3 28 10/19/16 1/27 4.00 12.57 85,230 6,780 4 1B N 82-4 28 10/19/16 1/27 4.00 12.57 90,350 7,190 5 1B N 82-5 35 H 10/26/16 1/34 Test Age Average Strengths(psi):7 Day-5510,28 Day-7030 Break Remarks Capping Methods 1A:The test result is for informational purposes. N:ASTM C1231,Unbonded Caps 1 B:The result meets or exceeds the specified compressive strength. xc \ r n TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 /Z�, .,:g'ii Steve Martin 10/21/2016 Page 1 of 1 BRAUN Compressive Strength of Concrete Report Date:10/21/2016 Sample:121570 INTERTEC Test Method:ASTM C39 Client: Project: 1826 Buerkle Road Saint Paul,MN 55110 Stillwater Area Public Schools B1602671 Phone:651-487-3245 Independent School District#8341875 Greeley St S Stillwater High School Renovations and Additions Stillwater,MN 55082 Stillwater BLVD N Oak Park Heights,MN Sample Details Set#: 83 Technician: Singer,Zach Batched: Specimen Size: 4"X 8" Cast By: Singer,Zach Sampled: 11:00 CDT Specimens In Set: 5 Date Cast: 09/21/16 Cast: 11:15 CDT Truck/Ticket#: 744/3883310 Sampled From: Chute Truck Empty: Contractor: Market and Johnson Placement Method: Buggy Placement Time: Location Placement Location: Building Interior-Slab on Grade Location Details: Zone 10 slab on grade Sample Location/Notes: 2/3 of the way across zone 10 sog Batch Log Specifications Supplier: Gemstone Mix Design: SHS5065 Strength: 4000(psi) Plant: 3 Lakeland,MN Air: Not Required- (%) On-Site Admixtures: None Field Measurements Weather: Cloudy Slump(in): 4-1/4(ASTM C143) Plastic Unit Weight: Air Temperature(F): 63 Concrete Temp(F): 73(ASTM C1064) Air Content: 4.0(ASTM C231) Load Volume: 10(yd3) Lab Test Results Testing Lab:Bloomington,11001 Hampshire Ave S,Bloomington,MN,55438 Specimen Test Test Field/Lab Average Cylinder Cylinder Max Load Strength Fracture Break Capping Number Age Days Date Cure Days Diameter(in) Area(in2) (lbs) (psi) Type Remark Method 83-1 7 09/28/16 1/6 4.01 12.63 64,460 5,100 4 1A N 83-2 28 10/19/16 1/27 4.00 12.57 83,570 6,650 3 1B N 83-3 28 10/19/16 1/27 4.00 12.57 82,510 6,560 3 1B N 83-4 28 10/19/16 1/27 4.00 12.57 85,440 6,800 3 1B N 83-5 35 H 10/26/16 1/34 Test Age Average Strengths(psi):7 Day-5100,28 Day-6670 Break Remarks Capping Methods 1A:The test result is for informational purposes. N:ASTM C1231,Unbonded Caps 1 B:The result meets or exceeds the specified compressive strength. x \ r/\ ANA\\ \ rn TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Steve Martin 10/21/2016 Page 1 of 1 BRAUN Compressive Strength of Concrete Report Date:10/21/2016 Sample:124767 INTERTEC Test Method:ASTM C39 Client: Project: 1826 Buerkle Road Saint Paul,MN 55110 Stillwater Area Public Schools B1602671 Phone:651-487-3245 Independent School District#8341875 Greeley St S Stillwater High School Renovations and Additions Stillwater,MN 55082 Stillwater BLVD N Oak Park Heights,MN Sample Details Set#: 91 Technician: Matheson,Kyle Batched: Specimen Size: 4"X 8" Cast By: Matheson,Kyle Sampled: 13:45 CDT Specimens In Set: 5 Date Cast: 10/11/16 Cast: 13:55 CDT Truck/Ticket#: 806/3906184 Sampled From: Chute Truck Empty: Contractor: Market and Johnson Placement Method: Chute Placement Time: Location Placement Location: Building Exterior-Wall Location Details: Top 3'at grids JJ-26 to KK-26,JJ.5-25 to KK-25 Sample Location/Notes: Same Batch Log Specifications Supplier: Gemstone Mix Design: 4666P Strength: 4500(psi) Plant: 3 Lakeland,MN Air: 4.5-7.5(%) On-Site Admixtures: None Field Measurements Weather: Clear Slump(in): 5-1/2(ASTM C143) Plastic Unit Weight: Air Temperature(F): 70 Concrete Temp(F): 72(ASTM C1064) Air Content: 6.9(ASTM C231) Load Volume: 2.5(yd3) Lab Test Results Testing Lab:Bloomington,11001 Hampshire Ave S,Bloomington,MN,55438 Specimen Test Test Field/Lab Average Cylinder Cylinder Max Load Strength Fracture Break Capping Number Age Days Date Cure Days Diameter(in) Area(In2) (lbs) (psi) Type Remark Method 91-1 7 10/18/16 1/6 4.00 12.57 50,910 4,050 5 1A N 91-2 28 11/08/16 1/27 91-3 28 11/08/16 1/27 91-4 28 11/08/16 1/27 91-5 35 H 11/15/16 1/34 Test Age Average Strengths(psi):7 Day-4050 Break Remarks Capping Methods 1A:The test result is for information\A \ \ ral purposes. N:ASTM C1231,Unbonded Caps x1 \ \ r l 1 TYPE 1 TYPE 2 TYPE 3 TYPE 4 TYPE 5 TYPE 6 Steve Martin 10/21/2016 Page 1 of 1 II 3 � Julie Hultman From: Martin, Steve <SMartin@braunintertec.com> Sent: Wednesday, October 26, 2016 4:05 PM To: Dudero, Laurie; 'Bustin.phillips@krausanderson.com'; 'Jeff.moore@krausanderson.com'; kristy.casper@krausanderson.com; jack.bronczyk@krausanderson.com'; rlafaive@market johnson.com; hoheiselk@stillwaterschools.org; m el • • bwbr.com; Julie Hultman; afields@bwbr.com;jolson@bkbm.com Cc: Martin, Dan Subject: RE: Stillwater Area School Renovations and Addi .•ns -Transmittal #32 Attachments: Compressive Strength of Concrete_Set-00085 ample-122424.pdf Attached is the 28 day break result for Set#85 which had an average strength of 4,150 psi. The specified strength is 4,500 psi. We will plan on breaking a 56 day cylinder. However, per ACI 318 this set would be considered acceptable as there are 3 consecutive sets of this mix that met or exceeded the design strength. BRAUNSteven Martin, PE(MN,WI, MI) Associate Principal/Senior Engineer I TE T C 1826 Buerkle Road I Saint Paul,MN 55110 651.487.7026 direct 612.221.2504 mobile 'i 8d You Build Om smartin@braunintertec.com braunintertec,com.,. Twhter: Braun Iniertec.. Lini<edln:QraunInlertec 1 te BRAUN Compressive Strength of Concrete Report Da Sammple:ple:26/2016 122424 INTERTEC Test Method:ASTM C39 The Science Y Build On. Client: Project: 1826 Buerkle Road Saint Paul,MN 55110 Stillwater Area Public Schools B1602671 Phone:651-487-3245 Independent School District#8341875 Greeley St S Stillwater High School Renovations and Additions Stillwater,MN 55082 Stillwater BLVD N Oak Park Heights,MN Set#: 85 Technician: Thomas,Nathaniel Batched: Specimen Size: 4"X 8" Cast By: Thomas,Nathaniel Sampled: 13:10 CDT Specimens In Set: 5 Date Cast: 09/27/16 Cast: 13:20 CDT Truck/Ticket#: 861 /3889156 Sampled From: Chute Truck Empty: Contractor: Market and Johnson Placement Method: Bucket Placement Time: Placement Location: Building Exterior-Column Location Details: 4 columns at grids JJ-27,JJ-28,JJ-29,and JJ-30.Column at grid JJ-27 not poured all the way and is to be finished on 9/28. Sample Location/Notes: Sampled from column at grid JJ 30. �`, ;�, '. �to Supplier: Gemstone Mix Design: 4666P Strength: 4500(psi) Plant: 3 Lakeland,MN Air: 4.5 7.5(%) On-Site Admixtures: None , .... r. ;. . Weather: Cloudy Slump(in): 7-1/2(ASTM C143) Plastic Unit ... Weight: Air Temperature(F): 52 Concrete Temp(F): 68(ASTM C1064) Air Content: 7.4(ASTM C231) Load Volume: 2(yd3) Testing Lab:Bloomington,11001 Hampshire Ave S,Bloomington,MN,55438 Specimen Test Test Field/Lab Average Cylinder Cylinder Max Load Strength Fracture Break Capping Number Age Days Date Cure Days Diameter(in) Area(in2) (lbs) (psi) Type Remark Method 85-1 7 10/04/16 1/6 4.01 12.63 36,790 2,910 5 1A N 85-2 28 10/25/16 1/27 4.00 12.57 53,250 4,240 1 10 N 85-3 28 10/25/16 1 /27 4.00 12.57 51,680 4,110 1 10 N 85-4 28 10/25/16 1/27 4.00 12.57 51,430 4,090 1 10 N 85-5 35 H 11/01/16 1 /34 Test Age Average Strengths(psi):7 Day-2910,28 Day 4150 o. 1A:The test result is for informational purposes. N:ASTM C1231,Unbonded Caps 1 D:The test result fails to meet the specified compressive strength. X ,/)N. I \I\ \ TYPE 1 I Yt•E 2 TYPE 3 TYPE 4 TYPE 3 TYPE 6 Steve Martin 10/26/2016 Page 1 of 1