Lightweight concrete, lightweight concrete prefabricated parts, preparation method thereof and construction material

Abstract

The invention provides lightweight concrete, a lightweight concrete prefabricated part, a preparation method thereof and building materials, and relates to the technical field of lightweight concrete. The lightweight concrete is mainly made of cement, ceramic particles passing through +8 mesh sieve, ceramic particles passing through -8 to +16 mesh sieve, ceramic particles passing through -16 mesh sieve and optional additives, wherein the ceramic particles Mainly made from waste of foamed ceramics. This lightweight concrete combines good mechanical and thermal insulation properties. The lightweight concrete prefabricated parts and building materials are mainly made of the above-mentioned lightweight concrete and therefore also have good mechanical properties and thermal insulation properties. The preparation method of the concrete prefabricated part has the advantages of simple process and convenient operation.

Description

technical field [0001] The invention relates to the technical field of lightweight concrete, in particular to a lightweight concrete, a lightweight concrete prefabricated part, a preparation method thereof, and a building material. Background technique [0002] Lightweight concrete is also called foamed concrete. Existing lightweight concrete usually introduces air or nitrogen, carbon dioxide, oxygen and other gases into the concrete slurry to form a large number of small closed pores to reduce the quality of the concrete. When making traditional lightweight concrete, it is easy to appear that the density of cement and other cementitious materials is high, and the density of foam is very small. The density of the two is very different. The foam will float on the aqueous solution of cementitious materials, and the two are not easy to mix together. question. Moreover, in actual production, the foam will be destroyed by the stirring action during the mixing process with the co...

AI Technical Summary

Problems solved by technology

When making traditional lightweight concrete, it is easy to appear that the density of cement and other cementitious materials is high, and the density of foam is very small. The density of the two is very different. The foam will float on the aqueous solution of cementitious materials, and the two are not easy to mix together. question

Moreover, in the actual production, the foam will be destroyed by the stirring action during the mixing process with the concrete slurry

If the mixing time is short, the mixing of foam and mud will not be sufficient, if the mixing time is long, the loss of foam will be large, the concrete will collapse seriously, and the density of concrete products cannot be guaranteed.