INSULATING COMPOSITES BASED ON A MIXTURE OF RICE HUSK AND STRAW
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Abstract
The present study is aimed at obtaining environmentally friendly thermal insulation slabs containing rice husk as the main structure-forming material. The second component of the structure-forming composition is wheat straw. The experimental data on the physical properties of thermal insulation slabs, included the measurement of density, thermal conductivity, sorption moisture and compressive strength. The use of straw in an amount of up to 50% of the total mass of the composition allows to reduce the coefficient of thermal conductivity of insulation slabs to 0,054 – 0,055 W/(m·K). The indicators of the thermal conductivity coefficient of insulation slabs are due to the microstructure of husk and wheat straw, which is confirmed by the results of electron microscopy obtained in the course of research. Liquid glass ensures the formation of a rigid and durable structure of environmentally friendly thermal insulation boards and prevents damage to the insulation by rodents.
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References
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