APA Report T2016P-22 Glue Bond Qualification Tests on V2 Grade Cross Laminated Timber Using Douglas Fir as Top and Bottom Layers for Structurlam Products LP, Penticton, BC, Canada 2016 APA - The Engineered Wood Association by Jessie Y. Chen, Ph.D., EIT Technical Services Division May 5, 2016 TL-215 REPRESENTING THE ENGINEERED WOOD INDUSTRY 7011 South 19th Street Tacoma, Washington 98466-5333 Phone: (253) 565-6600 Fax: (253) 565-7265 www.apawood.org
TL-215 LABORATORY ACCREDITATIONS HELD BY APA APA - The Engineered Wood Association is committed to providing its clients with high-quality service and information through documented test procedures and thorough, accurate collection of data. As a part of that commitment, a Quality Program has been established by APA based on the international document ISO/IEC 17025: General Requirements for the Competence of Testing and Calibration Laboratories. APA is accredited as a testing laboratory for specific scopes by the following agencies (other accreditations also shown where applicable): International Accreditation Service (IAS), as an accredited Testing Laboratory (TL-215) under ISO/IEC 17025 International Accreditation Service (IAS), as an accredited Inspection Agency (AA-649) under ISO/IEC 17020 Standards Council of Canada (SCC), as an accredited Certification Body under ISO/IEC 17065 Japanese Ministry of Agriculture, Forestry, and Fisheries (MAFF), as a Registered Overseas Certification Body (ROCB) since June 21, 2006 California Office of the State Fire Marshal as Inspection Agency for products listed for the wildland and urban interface (WUI) areas (SFM Standard 12-7A-1) City of Los Angeles, as a Compliance Assurance and Testing Agency (No. 22192) The Florida Department of Business and Professional Regulation, as a Product Certification Agency (CER2512) The Florida Department of Business and Professional Regulation, as a Product Testing Laboratory (TST2513) The Florida Department of Business and Professional Regulation, as a Product Quality Assurance Entity (QUA2521) The Florida Department of Business and Professional Regulation, as a Product Validation Entity (VAL3120) This report contains data generated through testing of engineered wood products according to various test methods accredited by organizations listed above. A list of accredited test methods is available upon request. Any test data that are derived from the standard test method(s) or accepted procedure(s) are noted in this report. Accreditation does not constitute endorsement of this report by the accreditation agency or government. The precision and bias of the test methods given in this report are being established. APA Report No. T2016P-22 May 5, 2016 Page 2 of 25 2016 APA - The Engineered Wood Association
TABLE OF CONTENTS 1. OVERVIEW... 4 1.1 Introduction... 4 1.2 Qualification Tests... 4 2. MATERIAL DESCRIPTION... 4 3. TEST METHODS AND DATA ANALYSIS... 5 3.1 Block Shear... 5 3.1.1 Basis... 5 3.1.2 Testing facility and condition... 5 3.1.3 Test Methods... 5 3.1.4 Results... 6 3.2 Delamination... 6 3.2.1 ANSI Method... 6 3.2.1.1 Basis... 6 3.2.1.2 Testing facility and condition... 6 3.2.1.3 Test Methods... 6 3.2.1.4 Results... 6 3.2.2 CSA Method... 7 3.2.2.1 Basis... 7 3.2.2.2 Testing facility and condition... 7 3.2.2.3 Test Methods... 7 3.2.2.4 Results... 7 4. CONCLUSIONS... 7 5. REFERENCES... 8 6. APPENDICES... 9 APA Report No. T2016P-22 May 5, 2016 Page 3 of 25 2016 APA - The Engineered Wood Association
1. OVERVIEW 1.1 Introduction This report provides glue bond test results of 3-layer and 7-layer cross laminated timber (CLT) manufactured by Structurlam Products LP, Penticton, BC, Canada. The products are V2 grade using Douglas fir as top and bottom layers. The qualification tests were conducted at the APA Research Center in Tacoma, WA. The test data generated in this project will be used for glue bond qualification of CLT products (V2 grade using Douglas fir as top and bottom layers) manufactured by Structurlam Products LP, Penticton, BC, Canada. 1.2 Qualification Tests The CLT was evaluated for the following glue bond properties: Delamination: Glue bond delamination properties were evaluated in accordance with both ANSI A190.1-2007 and CSA O177-06. Block Shear: Block shear tests were conducted in accordance with both ANSI A190.1-2007 and CSA O177-06. 2. MATERIAL DESCRIPTION Six CLT billets (three 3-layer and three 7-layer) were manufactured at Structurlam Products LP, Penticton, BC, Canada in September 2015. The production details are described in the report, as shown in Appendix A. The CLT billets were shipped to the APA Research Center in Tacoma, Washington after manufacture for moisture conditioning and testing in October 2015. Figure 1 is an illustration of the three orthogonal axes of the CLT billet. h L w Figure 1. Orientations of CLT. APA Report No. T2016P-22 May 5, 2016 Page 4 of 25 2016 APA - The Engineered Wood Association
3. TEST METHODS AND DATA ANALYSIS All tests, listed in Table 1, were conducted at the APA Research Center in Tacoma, Washington in October 2015. Table 1. Test matrix. CLT Layout 3-layer 7-layer 3.1 Block Shear 3.1.1 Basis Specimen Dimension Test L (inch) w (inch) Number of Specimens Delamination 3 3 6 (ANSI) and 6 (CSA) Block shear See Fig. 2 See Fig. 2 6 Delamination 3 3 6 (ANSI) and 6 (CSA) Block shear See Fig. 2 See Fig. 2 6 Section 4.5.4.1 of ANSI A190.1-2007 (AITC T107) Section 9.2 of CSA O177-06 3.1.2 Testing facility and condition After manufacturing, CLT billets were shipped to the APA Research Center, Tacoma, WA for block shear testing. The specimens were tested in the as-received moisture conditions. 3.1.3 Test Methods Tested at a loading rate of 0.024 inch/min, with a permissible variation of ±25%. Schematic specimen dimensions are shown in Figure 2. 1/2'' 1/4'' 2'' Figure 2. Schematic specimen dimensions of block shear test (for illustration only). 2'' APA Report No. T2016P-22 May 5, 2016 Page 5 of 25 2016 APA - The Engineered Wood Association
3.1.4 Results Individual test results are given in Appendix B. The average wood failure for 3-layer CLT was 89% which met the 80% requirement in Section 4.5.4.1 of ANSI A190.1-2007 and Section 9.2.5 of CSA O177-06. The average wood failure of 7-layer CLT was 83% which met the 80% requirement in Section 4.5.4.1 of ANSI A190.1-2007 and 88% which met the 80% requirement in Section 9.2.5 of CSA O177-06. 3.2 Delamination 3.2.1 ANSI Method 3.2.1.1 Basis Section 4.5.4.3 of ANSI A190.1-2007 (AITC T110) 3.2.1.2 Testing facility and condition After manufacturing, CLT billets were shipped to the APA Research Center, Tacoma, WA for delamination testing. The specimens were tested after moisture cycling. 3.2.1.3 Test Methods Moisture cycling followed AITC T110. Schematic specimen dimensions are shown in Figure 3. h L w Figure 3. Schematic specimen dimensions of delamination test (for illustration only). 3.2.1.4 Results Individual test results are given in Appendix C. The delamination for both 3-layer and 7-layer CLT was 0%, which met the requirement of 5% average in Section 4.5.4.3 of ANSI A190.1-2007. APA Report No. T2016P-22 May 5, 2016 Page 6 of 25 2016 APA - The Engineered Wood Association
3.2.2 CSA Method 3.2.2.1 Basis Section 9.3.1.4 of CSA O177-06 Section 9.3.1.5 of CSA O177-06 3.2.2.2 Testing facility and condition After manufacturing, CLT billets were shipped to the APA Research Center, Tacoma, WA for delamination testing. The specimens were tested after moisture cycling. 3.2.2.3 Test Methods Moisture cycling followed Section 9.3.1.4 of CSA O177-06. Schematic specimen dimensions are shown in Figure 3. 3.2.2.4 Results Individual test results are given in Appendix D. The delamination for both 3-layer and 7-layer CLT was 0%, which met the requirement of 10% for a single bond line in Section 9.3.1.5 of CSA O177-06. 4. CONCLUSIONS The glue bond evaluation test data shows that the 3-layer and 7-layer CLT (V2 grade using Douglas fir as top and bottom layers) manufactured at Structurlam Products LP, Penticton, BC, Canada, met both ANSI A190.1-2007 and CSA O177-06 requirements in accordance with ANSI/APA PRG 320. APA Report No. T2016P-22 May 5, 2016 Page 7 of 25 2016 APA - The Engineered Wood Association
5. REFERENCES ANSI. 2007. Standard for Wood Products - Structural Glued Laminated Timber. ANSI A190.1-2007. AITC, Centennial, CO. ANSI/APA. 2012. Standard for Performance-Rated Cross-Laminated Timber. ANSI /APA PRG 320-2012. APA, Tacoma, WA. ASTM. 2015. Standard Practice for Estimating the Percentage of Wood Failure in Adhesive Bonded Joints. ASTM D5266-13. West Conshohocken, PA: American Society for Testing and Materials. CSA. 2006. Qualification Code for Manufacturers of Structural Glued-Laminated Timber. CSA O177-06. CSA International, Mississauga, Ontario, Canada. APA Report No. T2016P-22 May 5, 2016 Page 8 of 25 2016 APA - The Engineered Wood Association
6. APPENDICES List of Appendices Appendix A: Production Details... 1 page Appendix B: Block Shear Tests... 3 pages Appendix C: Delamination Tests (ANSI)... 4 pages Appendix D: Delamination Tests (CSA)... 4 pages APA Report No. T2016P-22 May 5, 2016 Page 9 of 25 2016 APA - The Engineered Wood Association