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물리적 처리에 따른 낙엽송 방부원주목의 표면할렬 방지효과
방성준 ( Sung-jun Pang ),오정권 ( Jung-kwon Oh ),이상준 ( Sang-joon Lee ),박준호 ( Jun-ho Park ),장성일 ( Sung-il Jang ),이전제 ( Jun-jae Lee ) 한국목재공학회 2017 목재공학 Vol.45 No.1
In this study, the surface check reduction effect of preservative-treated Korean larch round-wood was investigated by applying three physical treatments, such as incising, kerfing, and kiln-drying. Moreover, the possibility of long- term service life was also checked by comparing the depth of surface check and the penetration depth of preservative. A rapid gradient of wood moisture content between surface and center causes a surface check. Thus, the effect of reducing surface check was carried out at the lowest equilibrium moisture content (EMC) condition, temperature (2℃), humidity (44.6%), in outdoor locations in Korea until the test specimens reach to the 8.6% EMC. As a result, the preservative- treated specimens without incising, kerfing, kiln-drying (Type C) could not ensure the long-term service life due to a large surface check. Because the surface check depth of all specimens was deeper than the penetration depth of preservative. In case of the incising treated specimens (Type I), 80% of them, the depth of surface check was not deeper than the penetration depth of preservative. However, when a kerfing was additionally treated (Type B), a possibility of happening deeper surface check than penetration depth of preservative was increased rather than Type I.