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http://dx.doi.org/10.5658/WOOD.2017.45.3.243

Evaluation of Shear Strength by Direction of Wood Grain for Korean Pine Using PRF Adhesive  

Park, Sun-Hyang (Department of Forest Products, National Institute of Forest Science)
Kim, Kwang-Mo (Department of Forest Products, National Institute of Forest Science)
Pang, Sung-Jun (Department of Forest Products, National Institute of Forest Science)
Kong, Jin Hyuk (Department of Forest Products, National Institute of Forest Science)
Lee, Sang-Joon (Department of Forest Products, National Institute of Forest Science)
Publication Information
Journal of the Korean Wood Science and Technology / v.45, no.3, 2017 , pp. 243-249 More about this Journal
Abstract
This study was performed to find out the optimum adhesive conditions on manufacturing a cross-laminated timber (hereinafter CLT) with using domestic Korean Pine (Pinus koraiensis). The adhesive conditions including a applied amount of the glue and a Pressure are the one of the most important key factors on establishing CLT production process. The shear strength was examined with differing the adhesive conditions while using Phenol Resorcinol Formaldehyde Resin Adhesive (PRF resin). The optimum adhesive conditions was confirmed to be: glue spread of $250g/m^2$ and Pressure of 0.8 MPa respectively. The grain directions of glued specimens were also considered, perpendicularly bonded and parallelly bonded groups. Shear strength of the former group showed lower values than the latter group which is considered to be the effect of a rolling shear. Meanwhile the shear strength of both group satisfied the Korean Standard (KS F 3021) and the European Standard (EN 14080 and EN 16351). The results derived from this study can be used as the basic data for manufacturing the CLT with domestic Korean Pine. And additional researches for the other species including domestic Korean Larch and Pitch Pine is also now being performed.
Keywords
Korean pine; glue spread; pressure; shear strength;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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