Mechanical Durability of Several Wood-based Panels Evaluated by Outdoor Exposure Tests and Accelerated Aging Treatments

摘要

Towards the establishment of testing method to evaluate mechanical durability of wood-based panels for construction use, the Research Working Group of Wood-based Panels in the Japan Wood Research Society initiated a durability evaluation project in 2004. This research project consists of 10-year indoor exposure tests, 10-year outdoor exposure tests, and a variety of laboratory accelerated aging tests. Several panel products from veneer-based to fiber-based for construction uses are being tested for mechanical properties such as bending properties, internal bond strengths and nail-joint performances. To obtain appropriate testing methods for the mechanical durability, correlations between outdoor exposure and laboratory aging treatments are investigated. This paper shows part of the results obtained from 3-year outdoor exposure tests and laboratory accelerated aging tests.