THE INFLUENCE OF AGGREGATE WOODEN PARTICLES SIZE ON THERMAL CONDUCTIVITY OF WOOD COMPOSITE WITH CEMENT BINDER
The goal of this work was to fix correlation between the size of the wood particles making the fines used as a filler and thermal conductivity of a wood composite with cement binder. As a result of research it has been established that the material consisting of fines, water and additives meets the standards on thermal conductivity shown to concrete on organic fillers and it can be applied to production of construction materials. The specified materials can be used effectively in low housing construction for a subarctic zone of the Russian Federation. The size of particles of the fines applied as filler exerts impact on coefficient of thermal conductivity of the block of wood composite with cement binder. The increase in the size of wood particles of filler leads to thermal conductivity of the construction block increase and reduce thereby cold-resisting property functions of material. The best result among investigated has shown a wood composite with cement binder at which production as filler wood particles with the largest size smaller than 2 mm and bigger than 1 mm were used. It can be effect of fuller and uniform filling of volume of the block with wood particles and a reduce of cement binder layers thickness between them. This result in decrease of thermal conductivity of a wood composite with cement binder.