Self-heat-preservation building block foam concrete material for fabricated steel structure building and preparation method thereof

Abstract

The invention discloses a self-heat-preservation building block foam concrete material for a fabricated steel structure building and a preparation method thereof. The foam concrete material is prepared from, by weight, 100 parts of cement, 2-15 parts of rapid-hardening sulphoaluminate cement, 5-20 parts of active micro silicon powder, 2-10 parts of rubber powder, 2-8 parts of latex powder, 0-2 parts of polypropylene fibers, 0.2-1.5 parts of water repellent, 0.01-0.2 part of alkylbenzene sulfonate air-entraining agent, 0.1-2 parts of water reducing agent, 1.5-3 parts of foaming agent and 24-50 parts of water. The foam concrete material is specially designed according to needed characteristics of a self-heat-preservation building block core material or interlayer and has the advantages of being high in bonding strength, low in compressive strength-flexural strength ratio, low in heat conductivity coefficient and water absorption rate, good in durability, simple in production process, good in heat preservation and heat insulation performance, resistant to fire and the like, the shear deformation resistance of the foam concrete core material or interlayer is effectively enhanced, and the problems of shrinkage cracking, low bonding capacity, water seepage, inflammability and the like are relieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a self-insulating block foam concrete material used for prefabricated steel structure buildings and a preparation method thereof. Background technique [0002] Faced with the increasingly tense energy situation, some areas in my country, such as Beijing and Tianjin, have begun to implement the third step of energy-saving design standards, that is, the energy-saving rate reaches 65%. Traditional ordinary concrete small hollow blocks have poor thermal insulation performance. In order to meet the requirements of building energy-saving design, wall self-insulation blocks should be born. The wall self-insulation block is a functional block that improves the thermal insulation performance of the block through some effective measures on the basis of ordinary concrete blocks, that is, a single wall system built with this block ( Self-insulating wall) can not only play the rol...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a self-insulation block foam concrete material for prefabricated steel structure buildings and its preparation method. The foam concrete material is a material specially used for prefabricated steel structure buildings, which can replace flammable, Aged lightweight polystyrene board with high bonding strength, low folding ratio, low thermal conductivity and water absorption, and the same lifespan as blocks, simple production process, good thermal insulation performance and flame retardant It effectively enhances the shear deformation resistance of ordinary low-density foam concrete core materials or interlayers, and improves the problems of easy shrinkage cracking, weak bonding ability, and easy water seepage.