Process of preparing infusorial earth modified cement and light high strength concrete

Abstract

The invention relates to a diatomite modified cement and light high-strength concrete preparing method, including components in weight percent: ordinary Portland cement 47-89.5%, surface modified diatomite 10-50%, and additive 0.5-3%, feeding the prepared materials in a rough mixing machine and a fine mixing machine, so as to obtain the diatomite modified cement, then mixing and stirring the diatomite modified cement with sand, stone and water to obtain the light high-strength concrete. This concrete has lightness, high strength, good heat-insulating and -preserving effect, ability to resist UV radiation, wide use, ability to act as light wall material, light cement prefabricated part, bearing material, etc, able to be widely applied to high-rise architectures, storey architectures, industries in need of preserving heat, insulating heat and insulating sound and civil architectures.

Description

Technical field [0001] The invention relates to a preparation process of diatomite modified cement and lightweight high-strength concrete. Background technique [0002] There are two ways to prepare lightweight concrete. One method is to use light aggregates. There are two types of light aggregates. Gangue; the other type is artificial light aggregate, which is obtained from clay, shale, perlite, etc. after high temperature swelling or sintering into a porous structure, such as fly ash ceramsite, coal gangue ceramsite, clay ceramsite, page Rock ceramsite and expanded perlite, expanded slag beads, cinder, etc. The strength of lightweight concrete made of light aggregate depends on the strength of the aggregate. Since the strength of light aggregate is low, the strength of the resulting concrete is not high, and the water absorption of light aggregate is large, so it is difficult to mix concrete. When high strength is required When lightweight concrete, the bulk density is h...

AI Technical Summary

Problems solved by technology

Another method is porous concrete, which is made of air-entraining agent and foaming agent. Its strength is very low, and it is difficult to meet the load-bearing requirements, and the steel bars in porous concrete are easy to rust, especially in high humidity or dry conditions. It is more serious in the environment of alternating humidity