Fiber-reinforced cement-based polyphenyl granule thermal-insulation composite material

Abstract

The invention discloses a fiber-reinforced cement-based polyphenyl granule thermal-insulation composite material. The composite material comprises, by weight, 6%-10% of water, 25%-35% of Portland cement, 5%-15% of slag micro-powder, 45%-55% of quartz sand, 2%-6% of steel fibers, 2%-5% of silica fume, 1%-1.4% of polystyrene thermal-insulation particles, 2%-4% of an expansion agent and 0.3%-0.6% of additives. The additives comprise, by weight, 0.2%-0.4% of a water reducer and 0.04%-0.12% of a defoamer. The water reducer is polycarboxylic acid and the defoamer is a polyether. The fiber-reinforced cement-based polyphenyl granule thermal-insulation composite material has compressive strength the same to that of common concrete and density 1 / 2 of the density of concrete, effectively reduces the weight of an assembled building exterior wall and labor intensity of molding maintenance, saves a transportation cost, has excellent thermal insulation performances, is free of an outer thermal insulation system of the exterior wall after use in the exterior wall, greatly shortens a construction period and saves a construction cost.

Description

technical field [0001] The invention belongs to the technical field of cement production, and in particular relates to a fiber-reinforced cement-based polystyrene particle thermal insulation composite material. Background technique [0002] In the past few decades, my country's construction industry has flourished, which has greatly promoted the development of the national economy. With the increase of land transfer fees in our country, rising labor prices, people's requirements for energy conservation and environmental protection are gradually increasing, and the pressure on the construction industry is increasing. In order to improve competitiveness, a new industrial model - prefabricated buildings came into being. With the development of prefabricated buildings, higher and higher requirements are put forward for prefabricated components, especially prefabricated wall materials. The traditional concrete wall has the disadvantages of heavy weight, poor thermal insulation ...

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Problems solved by technology

[0005] The present invention provides a fiber-reinforced cement for the technical deficiencies of existing concrete walls, such as heavy weight, high labor intensity during forming and maintenance, high transportation costs, poor thermal insulation and sound insulation performance, and the need for paving and external thermal insulation systems for external walls. Polyphenylene particle insulation composite material

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