Low-density high-strength foamed gypsum

Abstract

The invention relates to low-density high-strength foamed gypsum which is mainly composed of gypsum powder, rubber polymer latex, starch, a surfactant, a foaming agent, and the like. The low-density high-strength foamed gypsum has the characteristics of small volume density, high strength, light weight, good thermal insulation performance, and the like.

Description

technical field [0001] The invention relates to a low-density and high-strength foamed gypsum, 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 pro...

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.