Fabricated thermal insulation wallboard material containing straw-based wood ceramic lightweight aggregate and preparation method thereof

Abstract

The invention relates to a fabricated thermal insulation wallboard material containing straw-based wood ceramic lightweight aggregate and a preparation method thereof. The fabricated thermal insulation wallboard material comprises, by mass, 13.1 to 33.4% of a straw-based wood ceramic lightweight aggregate, 25.1 to 42.6% of light calcined magnesia, 7.2 to 13.3% of magnesium chloride, 13.4 to 24.1%of coal cinder, 4.0 to 8.5% of silica fume, 14.2 to 25.6% of fly ash, 10.5 to 28.8% of water, 0.5 to 1.0% of polypropylene fibers, 0.1 to 0.5% of a naphthalene type superplasticizer, 0.1 to 0.5% of athickener, 0.1 to 0.4% of an air entraining agent and 0.5 to 1.0% of EPS foam particles. The light aggregate is prepared from straw which is a biomass renewable material and the non-reproducibility and large environmental load of the traditional thermal insulation lightweight aggregate raw material are changed. The fabricated thermal insulation wallboard material has the characteristics of light weight, high strength, thermal insulation, good thermal isolation and environmental friendliness and is suitable for the inner and outer wall panels of modern fabricated industrial buildings.

Description

technical field [0001] The invention relates to an assembled thermal insulation wallboard material containing straw-based wooden ceramic light aggregate and a preparation method thereof, belonging to the field of building materials. It specifically relates to a solution to the problem that the aggregate of traditional thermal insulation wallboards cannot be recycled, and is mainly used for the preparation of thermal insulation wallboards for prefabricated buildings. Background technique [0002] Construction industrialization, housing industrialization, and urbanization require active promotion of prefabricated construction. For the building envelope, the key indicator for assessing the level of industrialization of the building is the degree of assembly of the wall. The promotion and application of prefabricated lightweight thermal insulation concrete exterior wall panels is in line with the national industrial policy of green building and building energy conservation, and...

AI Technical Summary

Problems solved by technology

Especially in major grain producing areas and coastal economically developed areas, illegal burning has been repeatedly banned. Straw burning not only wastes resources and pollutes the environment, but also seriously threatens transportation safety. How to dispose of a large amount of remaining straw has become a major problem that needs to be solved urgently

In addition, the current prefabricated thermal insulation wall panels are generally made of ordinary Portland cement, which has the disadvantages of slow setting and hardening, long demoulding time, and low production efficiency.

In order to speed up production efficiency, many enterprises adopt steam curing method to shorten the demoulding time, but this requires complex steam curing equipment, and the enterprise needs to invest a huge amount of money; in addition, a large amount of energy is consumed during the maintenance process, which significantly increases the production cost of the enterprise

[0005] The above reasons have greatly limited the popularization and application of existing prefabricated thermal insulation wall panels in building industrialization, and there is an urgent need for a prefabricated thermal insulation wall panel material that contains recyclable biomass new aggregates and can be quickly demoulded. Preparation

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