The Influence of Flame Retardant Treated Timber Density on Combustibility Antipireniniais tirpalais impregnuotos medienos u siliepsnojimo priklausomyb nuo medienos tankio

Timber is widely used as a construction material in the majority of countries. In most cases, timber is the main structural material. Timber and timber fabrics used in building structure elements have to fulfill the requirements of fire safety. This article presents factors affecting the combustibility of timber, mainly the influence of flame retardants on the combustion phase, timber density and moisture. The influence of flame retardant treated timber density on combustibility is analyzed in this paper. Research was performed according to the requirements of the standard LST ISO 5657:1999 “Reaction to fire tests – ignitibility of building products using a radiant heat source”. The influence of flame retardant treated timber density on combustibility is assessed according to duration up to the combustion of the specimen. Article in Lithuanian Daugelyje ali mediena yra pla iai naudojama statybai, o kai kada ji yra pagrindinis statybini konstrukcij elementas. Pastato konstrukciniams elementams, apdailai naudojama mediena ir jos produktai privalo atitikti prie gaisrin s saugos reikalavimus. Straipsnyje aptariami veiksniai, kurie turi tak medienos u siliepsnojimui: antipirenini tirpal taka degimo fazei, medienos tankis ir dr gnumas. Taip pat nagrin jama antipireniniais tirpalais impregnuotos medienos u siliepsnojimo priklausomyb nuo medienos tankio. Tyrimai atlikti pagal LST ISO 5657:1999 standarto ,,Reagavimo ugn bandymai – statybini gamini u sidegimas veikiant juos ilumine spinduliuote“ reikalavimus. Impregnuotos medienos u siliepsnojimo priklausomyb nuo medienos tankio vertinama pagal laik iki bandinio u siliepsnojimo. Straipsnis lietuvi kalba