الفهرس 
Extruded Polystyrene (XPS)Only 14 pages are availabe for public view
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Abstract
Looking to the rice straw as an environmentally friendly and renewable material, rice straw thermal insulation boards are of considerable interest for energy saving purposes when it is used as building thermal insulation material for walls or ceilings. Development and performance evaluation of new thermal insulation boards manufactured mainly from locally available rice straw and cement mortar is the main aim of this work. This study consists of developing a treatment method of rice straw aiming to enhance its bond with the surrounding mortar, manufacturing of thermal insulation boards from rice straw and investigating the physical and mechanical properties of the produced boards. The bonding efficiency between rice straw and mortar was analyzed through testing the compressive strength and flexural strength of boards with different rice straw contents and different types of additives to the mixtures used to enhance the boards properties. Thermal insulation properties and fire resistance of the produced boards have been investigated as well. The results indicated that the optimum physical and mechanical properties of boards are obtained with rice straw content of 20% and 30%.it was found that the thermal insulation boards had fairly low thermal conductivity, ranging from 0.21 to 0.25 W/ (m.K). The fire resistance of rice straw boards was found to be much better than the conventional industrial and commercial types of the thermal insulation boards.