Effects of Impregnation Solutions on Weight Loss during Combustion of Laminated Veneer Lumber

Authors : Hakan KESKİN

Pages : 235-243

View : 16 | Download : 8

Publication Date : 2010-03-26

Article Type : Other Papers

Abstract :The aim of this study is to investigate the effects of impregnation chemicals on the weight loss during combustion of Laminated Veneer Lumber insert ignore into journalissuearticles values(LVL); obtained from combination of Oriental beech + Lombardy poplar and European oak + Lombardy poplar woods, impregnated with Borax insert ignore into journalissuearticles values(Bx);, Boric acid insert ignore into journalissuearticles values(Ba);, Bx+Ba insert ignore into journalissuearticles values(wt:wt 50:50%);, Imersol-aqua and Timbercare-aqua according to ASTM D 1413. The LVL samples were prepared in the form of five layers, 3 mm thickness from the beech, oak and poplar veneers bonded with Desmodur-VTKA and Polyinsert ignore into journalissuearticles values(vinyl acetate); adhesives, according to TS EN 386. The weight loss during combustion of the LVL test samples was determined according to ASTM E 160. Consequently, the weight loss percentage was the highest in beech-poplar combination processed with Imersol-aqua and DVTKA and the lowest in oak-poplar combination, Ba+Bx and PVAc adhesive. In the interaction of the wood materials, impregnation chemicals and adhesive types, it was the highest in beech-poplar combination + Timbarecare-aqua + DVTKA and the lowest in beech-poplar combination + insert ignore into journalissuearticles values(Ba+Bx); + PVAc. As a result, it can be said that the type of impregnation material has a first degree efficacy and wood material have second degree efficacy on the weight loss. Thus, the weight loss was high in beech-poplar combination impregnated with Ta but low in the same wood material impregnated with Ba+Bx. Accordingly, for places which has fire risk, usage of LVL wood material impregnated with boron compounds would be advantageous.   Key Words : Combustion, Impregnation Solutions, Weight Loss, Laminated Veneer.  
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