Building microorganism biological self-repairing heat-preservation mortar and preparation method thereof

Abstract

The invention discloses building microorganism biological self-repairing heat-preservation mortar and a preparation method thereof. The mortar comprises the following raw materials: 100 parts of a mineralized microorganism bacterial liquid, 100 parts of a microorganism nutrient liquid, 50-100 parts of expanded perlite, 50-100 parts of pearlife, 50-100 parts of superfine expanded perlite of 80-120meshes, 1-2 parts of a polypropylene fiber, 1-4 parts of HPMC (hydroxy propyl methyl cellulose), 10-40 parts of redispersibile latex powder, 1-4 parts of polyphenyl granules and 5-10 parts of potassium magnesium phosphate cement. The building microorganism biological self-repairing heat-preservation mortar disclosed by the invention has the characteristics of being low in heat conduction coefficient, high in strength, good in cracking resistance, good in durability, and the like, meanwhile is free of conventional cement, and has the characteristics of being green and environmentally-friendly.The microorganism heat-preservation mortar is applicable to heat-preservation plastering engineering such as heat-preservation transformation of various existing old buildings and reinforced concreteof new buildings.

Description

technical field [0001] The invention relates to the field of construction engineering materials, in particular to a microbial self-repairing thermal insulation mortar for construction. Background technique [0002] Cement is an important building material in modern society and one of the main raw materials for concrete and mortar. However, during the cement production process, a large amount of dust and carbon dioxide will be generated, which will put a lot of pressure on the environment, which is not in line with the concept of low-carbon environmental protection. At present, including organic thermal insulation mortar such as polystyrene particle thermal insulation mortar, and inorganic thermal insulation mortar with inorganic materials such as expanded perlite, expanded vermiculite, vitrified microspheres as thermal insulation aggregate, cement is mostly used as cementitious material, which not only makes Thermal insulation mortar has poor thermal insulation performance,...

AI Technical Summary

Problems solved by technology

However, in the process of cement production, a large amount of dust and carbon dioxide will be generated, which will cause great pressure on the environment, which is not in line with the concept of low-carbon environmental protection

At present, including organic thermal insulation mortar such as polystyrene particle thermal insulation mortar, and inorganic thermal insulation mortar with inorganic materials such as expanded perlite, expanded vermiculite, vitrified microspheres as thermal insulation aggregate, cement is mostly used as cementitious material, which not only makes Thermal insulation mortar has poor thermal insulation performance, and at the same time, due to the large consumption of cement, the environmental protection performance of thermal insulation mortar deteriorates