SUBJECT: Performance Testing of MCOR 5511; KTA-Tator, Inc. Project No

Transcription

1 June 1, 2017 Via Mr. Steven Shaffer Chemist / Product & Production Manager MCOR 3000 N 29 CT Hollywood, FL SUBJECT: Performance Testing of MCOR 5511; KTA-Tator, Inc. Project No Dear Mr. Shaffer: In accordance with KTA-Tator, Inc. (KTA) Proposal Number PN and the subsequent signed Authorization to Proceed dated January 10, 2017, KTA has completed the laboratory testing of MCOR This report contains descriptions of the testing procedures employed and the results of the testing. SAMPLES The A and B components of MCOR 5511 listed in Table 1, Samples were received from MCOR on February 10, KTA ID KTA-1 KTA-2 Table 1 Samples Description 1 gallon MCOR 5511 Component A 1 quart MCOR 5511 Component B LABORATORY INVESTIGATION The laboratory testing consisted of wet and dry tensile adhesion on concrete and slant shear (bond) strength. The test descriptions and the results of the testing are provided below. KTA-Tator, Inc. 115 Technology Drive Pittsburgh, PA

2 Tensile Adhesion Strength Tensile adhesion (pull-off strength) was measured in accordance with ASTM D , Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers. The grout was spread on concrete paving panels using gloved hands. After curing, the grout was scored at a diameter equal to the diameter of the test stub and the surface cleaned. Loading fixtures with an abraded test surface were attached to the coating using a two-component epoxy adhesive (Araldite 2011), which was allowed to cure for 24 hours at ambient laboratory conditions (73.5 ± 3.5 F and 50 ± 5% relative humidity). Some of the panels were then place in a tray of water such that half the panel thickness was immersed. The loading fixtures were then detached using a self-aligning pneumatic adhesion tester (PATTI- Pneumatic Adhesion Tensile Testing Instrument) employing the F-20 piston and a 2-inch stub (range: psi). The force (in psi) required to remove each loading fixture was recorded along with the location of break and approximate percentage of each. The location of break is defined as follows: Adhesive Failure: A split between layers or a split between the substrate and the first layer. Cohesive Failure: A split within a single layer. Glue Failure: Coating strength exceeds glue strength. A photograph of the wet samples after testing is shown in Figure 1. The results of the testing are provided in Table 2, Results of Tensile Adhesion Testing. The temperature and relative humidity recorded during the time of test were 73 F and 50%, respectively. Results were calculated as follows: POTS = [(BP * Ag) - C]/area of pull stub, where: POTS = pull-off tensile strength BP = burst pressure (dial reading) Ag = contact area of gasket with reaction plate = square inches C = piston constant = pounds area of pull stub = sq. inches MCOR 2 of 6 June 1, 2017 Testing of MCOR 5511

3 Figure 1 Photograph of Wet Tensile Adhesion Samples and Stubs MCOR 3 of 6 June 1, 2017 Testing of MCOR 5511

4 Condition Sample Dry Wet Table 2 - Results of Tensile Adhesion Testing Location of Break Burst Pressure (psi) AA 100% within concrete 395 AB 100% within concrete 299 AC 100% within concrete 337 AD 100% within concrete 293 AE 100% within concrete 369 AF 100% within concrete 490 AG Exceeded piston capacity >509 AH Exceeded piston capacity >509 AI Exceeded piston capacity >509 AJ Exceeded piston capacity >509 Average Burst Pressure of Test Condition (psi) 364 >509 Slant Shear (Bond) Strength Slant Shear (Bond) Strength Testing was measured in accordance with ASTM C882/C882M-13a Standard Test Method for Bond Strength of Epoxy-Resin Systems Used with Concrete by Slant Shear. Six concrete cylinders (3 inches in diameter and 6 inches long) were cast by Avelli Corporation in Ambridge, PA. After wet curing for 28 days and dry curing for 7 days, three of the samples were saw cut at a 30 angle to create two halves of equal size and shape. The remaining three cylinders were retained for control samples. The surfaces to be bonded were grit blasted using Black Beauty abrasive to remove all surface material. The samples were soaked in water for 24 hours and allowed to dry on an absorbent material for 10 minutes. A 0.25 inch to inch layer of the grout was applied to the bonding surface of one sample half. This is a modification of ASTM C882 which specifies a bond thickness of 0.02 inches. The grout had a pliability similar to putty and could not be applied any thinner without pulling from the concrete surface. A PVC pipe with an interior diameter of 3 inches was cut lengthwise and used to keep the sample halves aligned while curing. Sulfur capping and compression testing were conducted by PSI-Intertek in Pittsburgh, PA. The compressive strength of the control samples was calculated by dividing the ultimate load by the cylinder cross-sectional area (7.07 inches 2 ). The bond strength of the test samples was calculated by dividing the ultimate load by the area of the elliptical boding surface (14.13 inches 2 ). No voiding was observed during inspection after testing. The compressive strength of the control cylinders averaged 4740 psi which complied with the minimum of 4500 psi required by ASTM C882. A photograph of the samples after compression testing is shown in Figure 1. The results of the testing are provided in Table 3 Results of Slant Shear (Bond) Strength. The compression testing report from PSI is included in Appendix 2. MCOR 4 of 6 June 1, 2017 Testing of MCOR 5511

5 Figure 2 Photograph of Slant Shear (Bond) Strength Samples after Testing Sample Table 3 - Results of Slant Shear (Bond) Strength Fracture Type Ultimate Load (lbf) Compressive Control 1 vert crack/cone opp end Control 2 vert crack/cone opp end Control 3 vert crack/no cone Sample Break Location Ultimate Load (psi) Bond Sample 1 within bond Sample 2 within bond Sample 3 within bond Average Compressive 4740 Average Bond 774 MCOR 5 of 6 June 1, 2017 Testing of MCOR 5511

6 If you have any questions concerning the testing or this report, please contact me by telephone at extension 176, or by at Sincerely, KTA-TATOR, INC. Appendix 1 Summary of Results Appendix 2 Slant Shear (Bond) Strength RBL/NRN:tbr ( MCOR.doc) Robert B. Leggat Laboratory Services Manager NOTICE: This report represents the opinion of KTA-TATOR, INC. This report is issued in conformance with generally accepted industry practices. While customary precautions were taken to verify the information gathered and presented is accurate, complete and technically correct, this report is based on the information, data, time, materials, and/or samples afforded. This report should not be reproduced except in full. MCOR 6 of 6 June 1, 2017 Testing of MCOR 5511

7 APPENDIX 1

8 Summary of Testing Property Test Method Average Result Bond Strength (Dry Concrete) Bond Strength (wet concrete) Slant Shear (Bond) Strength ASTM D7234 ASTM D7234 ASTM C882 >509 psi 364 psi (substrate failure) 774 psi MCOR 1 of 1 June 1, 2017 Appendix 1 Summary of Results

9 APPENDIX 2

10 Concrete Test Report Client: KTA TATOR 115 TECHNOLOGY DRIVE PITTSBURGH, PA Professional Service Industries, Inc. 850 Poplar Street Pittsburgh, PA Phone: (412) Fax: (412) CC: ROBERT LEGGAT Report No: CTR: C1 Issue No: 1 These test results apply only to the specific locations and materials noted and may not represent any other locations or elevations. This report may not be reproduced, except in full, without written permission by Professional Service Industries, Inc. If a non-compliance appears on this report, to the extent that the reported non-compliance impacts the project, the resolution is outside the PSI scope of engagement. Project: SLANT SHEAR TESTING Mix Data Supplier: Plant: Mix Identification: Specified Design : Sample Details Date Sampled: 03/23/17 Date Received: 03/24/17 General Location: Sample Location: Curing Method: Field Sample No.: Contractor: Ticket no.: Epoxy Testing Bond Strength testing One day Field/Laboratory Cure Field Cure Temp ( F) High: Truck No.: Sampled By: Client Submitted By: Client Weather: Est. Wind (mph): Est. Rh (%): Low: Specification: Slump (in): ASTM C 143 N/A Slump w/ plasticizer (in): N/A Air Temp ( F): N/A Concrete Temp ( F): ASTM C 1064 N/A Air Content (%) ASTM C 231 Unit Weight (pcf): ASTM C 138 N/A Volume of Density Measure (ft³): N/A Batch Size (yd³): Yd³ Placed: Water Added (gal) Before: Approved Signatory: Craig Addison (Laboratory Supervisor) Date of Issue: 3/29/2017 After: Time Batched: Time Sampled: Time Placed: Measured Specified Time in Truck (mins): Compressive Strength of Concrete Cylinders ASTM C 39 Specimen ID Date Tested Age (Days) Diameter (in) Length (in) Area (in²) Type of Cap Ultimate Load (lbf) Fracture Type / Remarks Compressive Slant Sear \1A 03/27/ B Slant Sear \1B 03/27/ B Slant Sear \1C 03/27/ B Average 28 Day Compressive Required Notes 1. Sampling to ASTM C Specimen(s) prepared to ASTM C Capping B=Bonded ASTM C 617, U=Unbonded ASTM C 1231, C = Combined, G = Ground Remarks Fracture Type: - = Not Defined All samples failed at bond point. No voids >3mm were observed in bonded area. Form No: 18947, Report No: CTR: C QESTLab by SpectraQEST.com Page 1 of 1

11 Concrete Test Report Client: KTA TATOR 115 TECHNOLOGY DRIVE PITTSBURGH, PA Professional Service Industries, Inc. 850 Poplar Street Pittsburgh, PA Phone: (412) Fax: (412) CC: ROBERT LEGGAT Report No: CTR: C2 Issue No: 1 These test results apply only to the specific locations and materials noted and may not represent any other locations or elevations. This report may not be reproduced, except in full, without written permission by Professional Service Industries, Inc. If a non-compliance appears on this report, to the extent that the reported non-compliance impacts the project, the resolution is outside the PSI scope of engagement. Project: SLANT SHEAR TESTING Mix Data Supplier: Plant: Mix Identification: Specified Design : Sample Details Date Sampled: 03/23/17 Date Received: 03/24/17 General Location: Sample Location: Curing Method: Field Sample No.: Contractor: Ticket no.: Epoxy Testing Bond Strength testing One day Field/Laboratory Cure Field Cure Temp ( F) High: Truck No.: Sampled By: Client Submitted By: Client Weather: Est. Wind (mph): Est. Rh (%): Low: Specification: Slump (in): ASTM C 143 N/A Slump w/ plasticizer (in): N/A Air Temp ( F): N/A Concrete Temp ( F): ASTM C 1064 N/A Air Content (%) ASTM C 231 Unit Weight (pcf): ASTM C 138 N/A Volume of Density Measure (ft³): N/A Batch Size (yd³): Yd³ Placed: Water Added (gal) Before: Approved Signatory: Craig Addison (Laboratory Supervisor) Date of Issue: 3/29/2017 After: Time Batched: Time Sampled: Time Placed: Measured Specified Time in Truck (mins): Compressive Strength of Concrete Cylinders ASTM C 39 Specimen ID Date Tested Age (Days) Diameter (in) Length (in) Area (in²) Type of Cap Ultimate Load (lbf) Fracture Type / Remarks Compressive Control\1 03/27/ B Control\2 03/27/ B Control\3 03/27/ B Average 28 Day Compressive Required Notes 1. Sampling to ASTM C Specimen(s) prepared to ASTM C Capping B=Bonded ASTM C 617, U=Unbonded ASTM C 1231, C = Combined, G = Ground Remarks Fracture Type: 2 = C39: Vert crack/ cone opposite end; C1314: Cone & Shear, 3 = C39: Vert cracking/no cones; C1314: Cone & Split Form No: 18947, Report No: CTR: C QESTLab by SpectraQEST.com Page 1 of 1