Ultra-light heat-preservation aerated concrete for fabricated prefabricated part and preparation method of ultra-light heat-preservation aerated concrete

Abstract

The invention relates to ultra-light thermal insulation aerated concrete for a fabricated prefabricated part, the ultra-light thermal insulation aerated concrete comprises the following components inparts by weight: 90-150 parts of cement, 40-60 parts of fly ash, 0.4-0.65 part of polypropylene fiber, 1.3-2.0 parts of a thickener, 2.6-4.1 parts of a foam stabilizing accelerator, 8.0-14.0 parts ofan air entraining agent. 5.0 parts of a catalyst, 70-120 parts of water and 2.5-4.5 parts of a water glass spray. Compared with the prior art, the lightweight high-strength aerated concrete product prepared by the invention is uniform in distribution, good in thermal insulation property, ultra-light and relatively high in strength, solves the problems of low strength and high volume weight of aerated concrete, improves the strength of the aerated concrete, maintains relatively low density, and is suitable for large-scale popularization and application. The aerated concrete can meet the high requirement of the current building field for the bearing capacity of the aerated concrete, meets the requirement of green and environment-friendly buildings, and can be widely popularized and used.

Description

technical field [0001] The invention relates to an aerated concrete, in particular to an ultra-light heat-preserving aerated concrete for an assembled prefabricated component and a preparation method thereof. Background technique [0002] Air-entrained concrete is a new type of low energy consumption and environmentally friendly building material. It has the advantages of light weight, good thermal insulation performance, high strength, good seismic performance, good processing performance, high temperature resistance, and good sound insulation performance. Under high pressure curing conditions, a dry density of 500kg / m3 was prepared. 3 For air-entrained concrete with a compressive value above 0.7Mpa, the raw material uses more cementitious materials such as high-grade cement or special cement, and the air-entraining agent used is fine-grained aluminum powder, which results in the prepared aerated concrete The cost of air-entrained concrete is high, and there is a risk of l...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of low strength and large volume of existing aerated concrete, which cannot meet the high requirements of the load-bearing capacity of aerated concrete in the construction field today, the present invention provides an ultra-light heat-preserving aerated concrete for prefabricated components and its preparation method to realize light-weight high-strength aerated concrete products with good thermal insulation performance, ultra-light, and high strength, which solves the problems of low strength and large capacity of aerated concrete, not only improves its strength but also maintains a small density, which can meet the requirements of Today's construction field has high requirements for the load-bearing capacity of air-entrained concrete, and at the same time meets the requirements of green and environmentally friendly buildings, which can be widely promoted and used.