Low-density and aerated foaming gypsum block

Abstract

The invention relates to a low-density and aerated foaming gypsum block. The low-density aerated foaming gypsum block mainly comprises gypsum powder, coal ash, cement, limestone, gas forming agent, calcium carbide, retarders and the like. The low-density aerated foaming gypsum block has the characteristics of low volume density, high strength, light weight, good anti-seismic property, thermal insulation, damp proofing and sound insulation, good workability, fire proofing and flame retardance and the like.

Description

technical field [0001] The invention relates to a low-density aerated foamed gypsum block, which belongs to the field of building materials. Background technique [0002] As one of the main building cementing materials, gypsum has an irreplaceable role, and its building gypsum products are one of them, which have been produced and applied in my country for many years. However, the bulk density of the product is generally higher than that of similar foreign products, resulting in large holes, pores, and capillary structures on the inner surface of the gypsum product, and the internal structure is loose, thereby affecting its strength and waterproof performance. [0003] At present, foreign developed countries usually add some foaming agents with better performance when producing building gypsum products, which can effectively reduce the volume density of gypsum products. At present, some enterprises in China also use air-entraining foaming agents when producing gypsum product...

AI Technical Summary

Problems solved by technology

However, the bulk density of the product is generally larger than that of similar foreign products, resulting in large holes, pores, and capillary structures on the inner surface of the gypsum product, and the internal structure is loose, thus affecting its strength and waterproof performance.

[0003] At present, foreign developed countries usually add some foaming agents with better performance when producing building gypsum products, which can effectively reduce the volume density of gypsum products. At present, some enterprises in China also use air-entraining foaming agents when producing gypsum products. However, there is still a certain gap between the size, quantity and stability of the bubbles of the foaming agent and foreign air-entraining foaming agents, and because the diameter of the bubbles is too large, it has a great influence on the strength of the hardened gypsum product.