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논문 기본 정보

자료유형
학술저널
저자정보
이필우 (서울대학교 농과대학)
저널정보
한국산림과학회(구 한국임학회) 한국산림과학회지 한국산림과학회지 제3권 제1호
발행연도
1963.1
수록면
5 - 9 (5page)

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초록· 키워드

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1. Creosote in treated wood that exposed in open areas of outdoor is gradually lost by elapse of some period of time. This is the interst and important problem relating to decide the effect on the life extension of creosoted wood. As a general preservative losses occurring in wood treated by oil born preservative such as creosote oil are taken place boy the evaporating and washing activities of the exposed surfaces of wood due to the climatic conditions. Accordingly author intend to inspect differences in retention among species showing after creosoted blocks had been treated by evaporating and washing alternately for a definite time in the laboratory. 2. In this study rail road tie woods of Quercus aliena Blume, Fagus crenata Blume and Fraxinus mandchurica Ruprecht which entered into area for treatment at the plant, locating in Suwon, Korea, were selected to the test species. $2{\times}2{\times}2$ centimeter forty small wood blocks for each species were cut, treated by the mixed solution of equal 50% creosote and heavy oil (hot and cold method), and inspected absorption percents. After evaporation and washing treatments alternately to the intervals of definite time had been accomplished, the losses of creosote were inspected. 3. According to the results Quercus Fagus and Fraxinus are showing the values of 37.9, 87.3 and 59.3% in absorption, and these values were reduced into 28.7, 63.8 and 44.4% respectively by evaporating and washing treatments for a definite time. These indicate that losses of ease absorbing species are greater than difficult one and on the contrary difficult are lesser. However above reduced values are calculated to the 24.3, 26.9 and 25.1% when the absorption percents of each species were assumed as 100% retention respectively. Therefore actual differences of losses among species are lesser than those of absorption percents.

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