Abstract
Mass timber panels (MTPs) have a great potential in the construction of mid- and high-rise buildings. Evaluation of the face-bond strength of MTPs is of great practical interest for this kind of products. This study aimed at developing an appropriate test procedure for evaluating the adhesive bond strength of cross-laminated laminated strand lumber (CL-LSL). Three-point short-span bending tests were conducted on two-layer asymmetric CL-LSL specimens (2LasymCL-LSL), which were adhesively bonded by two-component resins of the type polyurethane (PUR) or polyvinyl acetate (PVAc). For comparison, block shear specimens were tested as well. It was found that the 2LasymCL-LSL assembly was better suitable under the short-span bending for differentiating between good and poor bond quality of MTPs.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This study was financially supported by the Natural Sciences and Engineering Research Council of Canada (NSERC) under its Discovery Grant Program (RGPIN-2017-03821) and New Brunswick Innovation Research Chair Program. The in-kind contributions were made by Ainsworth Engineered Canada LP and Purbond AG in terms of materials and technical advice.
Employment or leadership: None declared.
Honorarium: None declared.
Conflict of interest: All authors confirmed that there is no conflict of interests regarding the research study addressed in this manuscript.
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