Anti-compression type autoclaved aerated concrete block

Abstract

The invention discloses an anti-compression type autoclaved aerated concrete block, and belongs to the technical field of building materials. The concrete block is prepared in the steps that, 5-20 parts of Portland cement, 6-12 parts of silica fume, 8-12 parts of quicklime, 12-18 parts of coal ash, 35-45 parts of river sand, 2-4 parts of gypsum, 5-8 parts of gas forming agent, 1-2 parts of foam stabilizer, 12-18 parts of modified additive and 20-25 parts of water are sequentially weighed by weight; the river sand and the coal ash are mixed, ground, sieved and dried to obtain mortar, the mortaris mixed with the Portland cement, and the water, the silica fume, the quicklime, the gypsum, the gas foaming agent and the modified additive are added, stirred and mixed to obtain a mixture; the mixture is mixed with the foam stabilizer, after casting molding, standing, gas forming and autoclaved curing are conducted, and the anti-compression type autoclaved aerated concrete block is obtained. The obtained anti-compression type autoclaved aerated concrete block has excellent compressive strength.

Description

technical field [0001] The invention discloses a pressure-resistant autoclaved aerated concrete block, which belongs to the technical field of building materials. Background technique [0002] Air-entrained concrete block is a new type of building material that is lightweight, porous, thermal insulation, good fire resistance, nailable, sawable, planable, and has certain earthquake resistance. As early as the early 1930s, China began to produce this product and it was widely used. It is an excellent new building material and has the advantages of environmental protection. [0003] Autoclaved aerated concrete block is a new type of lightweight wall filling material. Compared with clay bricks and ordinary concrete bricks, it has good properties such as fire resistance, compression resistance, sound insulation, and heat preservation, so it is widely used. However, in recent years, with the implementation of mandatory requirements for the thermal insulation performance of build...

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the invention is: aiming at the problem of poor compressive