Development Of Energy-efficient And Insulated Wall And Floor Materials With Lightweight

The energy situation of China is severe, and the increment speed of energy production fall behind the one of GDP for a long time, therefore, saving energy has become the basic state policy of China and objective need of national economy’s development. Saving energy of palisade structure and heating system are the two aspects of building energy efficiency, among them, the palisade structure is vital to building energy consumption and living comfortable level, and the thermal performance of the material directly determines whether the heat energy which supplied building will be used effectively in internal building and energy-saving thermal insulation effect of buildings, so heat preservation material is the key to realize the building energy efficiency.This paper develops the light materials of wall and floor about palisade structure, for getting the wall and floor concrete materials with light density and high strength, the author designs three kinds of experimental programs, and gets the28days’ compressive strength and dry apparent density of concrete test pieces of three schemes through the orthogonal experimental design method. Through contrasting and analysising the experimental results and so on, the first program is selected for the wall material, the second program is selected for the floor material, and optimal proportion of basic concrete is determined.In a certain range, concrete with bigger dry apparent density has bigger degree thermal conductivity. The dry apparent dencity of the first program basic concrete is too large, so foam agent, which could reduces the dry apparent density, is mixed to achieve good insulation performance; In order to meet the required strength, glass fiber is mixed basing on the optimum content of foam agent. The experimental results show that, with the increase of the foam agent’s ratio, the compressive strength and dry apparent density of the first program concrete are apparent gradually decrescent and eventually the optimum content of foam agent is determined for1.0kg/m3; On the basis of mixing with1.0kg/m3foam agent, the compressive strength of concrete first increases, then decreases with the increase of the glass fiber content, and the optimum content of glass fiber is determined for1.0kg/m3. For the second program basic concrete, when mixed with glass fiber, the compressive strength of the shale ceramsite concrete not only increases, but emerge a trend of gradual decrease with the increase of the glass fiber content, the results show that mixing glass fiber in the shale ceramsite lightweight aggregate concrete to improve the compressive strength is infeasible. Eventually, the article gets each component quantity of the lightweight aggregate concrete, that is treated as the optimal proportion, and the mixture under the optimal proportion for the new light weight aggregate concrete, which is tested other each performance afterwards.Figure [39] table [34] reference [56]...