期刊
BUILDINGS
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/buildings13020527
关键词
cement fibre board; timber structure; fire resistance; structural part; thermal degradation; fire exposure
This study explores methods for increasing the resistance of timber against fire and slowing down thermal degradation by using non-combustible cement fibre boards as protection. The experimental testing of timber structures protected by these boards reveals their effectiveness in preventing combustion. The fire reaction class (A1) of cement fibre boards makes them suitable for dry construction systems.
The combustibility of natural wood presents a negative impact for using this material in buildings. Timber elements can be cladded with boards made of non-combustible materials. This study represents a group of options for increasing the resistance of timber against the effects of fire and the possibility of slowing down the effect of thermal degradation of wood. The aim of this study is focused on an experimental testing of structures with timber elements protected by cement fibre boards as a non-combustible fire retardant. Cement fibre boards are fibre-reinforced composite materials used for systems of dry constructions. These boards present the highest degree of fire reaction class (A1). The behaviour of the structure, loaded by the effects of fire, was monitored during the experiment. The specimen was tested with reduced dimensions. The temperature loading corresponded to the procedure according to the standards. The final fire resistant (FR) results were evaluated in accordance with the requirements for the selected limit states of FR. This was assessed based on the measured temperatures and the whole condition of the tested specimen. The specimen fulfilled the fire-separating function of the structure for the classification times.
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