Fire Reterdant Chemicals Affecting Combustion Resistance of Wood

Authors : Yalçın ÖRS, Abdullah SÖNMEZ

Pages : 389-394

View : 25 | Download : 10

Publication Date : 1999-05-01

Article Type : Research Paper

Abstract :Wood is an important material used in construction elements. However since it can be affected by biotic and abiotic deteriorating agents, it should be treated with chemical impregnating materials prior to use. In this study, the effects of water-soluble impregnating chemicals on the combustion resistance of wood was investigated. For this purpose, panels were prepared with oriental beech wood insert ignore into journalissuearticles values(Fagus orientalis L.); and pine wood insert ignore into journalissuearticles values(Pinus silvestris L.);, which are widely used in industry. These panels were impregnated with potassium nitrate insert ignore into journalissuearticles values(KNO3);, zinc sulfate insert ignore into journalissuearticles values(Zn SO4);, sodium tetra borate insert ignore into journalissuearticles values(Na2 B4 O7);, sodium sulfate insert ignore into journalissuearticles values(Na2 SO4); and copper sulfate insert ignore into journalissuearticles values(Cu2SO4);. Two different methods were used for impregnation of the wood samples: extended dipping without pressure, and and full cell with either 60 minutes vacuum-60 minutes pressure, or 30 minutes vacuum-30 minutes pressure. The amount of weight lost during flame- and non-flame burning showed that impregnation with Cu2SO4, Zn SO4 and Na2 SO4 increased the fire resistant of pine and oriental beech wood. For this reason, the full-cell method is more effective in impregnation.
Keywords : Turk J Agric For, 23, 1999, 389 394 Turk J Agric For, vol 23, iss EK2