Self-leveling recycled lightweight aggregate concrete for building mold net and preparation method thereof

Abstract

The invention discloses a self-leveling recycled lightweight aggregate concrete for a building mould net and a preparation method thereof. The concrete is prepared from, by weight, 25-55% of cementitious material, 15-40% of recycled lightweight aggregate, 1-4% of vermiculite powder, 0.2-1.2% of thixotropic lubricant, 0.05-0.5% of the ecological fiber, 0.2-2% of physical foaming agent, 0.05-0.2% offoam stabilizer, 0.2-1.5% of water reducing agent, 0.03-0.3% of anti-separation agent and 10-35% of water. The self-leveling recycled lightweight aggregate foam concrete has the advantages of light weight, high strength and good fireproofing, heat preservation and sound insulation effects, has self-leveling performance, does not separate, reduces construction amount, and shortens construction period, a raw material contains the recycled lightweight aggregate made by recycling construction waste, costs are reduced, and the adverse effects of the construction waste on the environment are greatly reduced.

Description

Technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a self-leveling regenerated lightweight aggregate concrete of building formwork and a preparation method thereof. Background technique [0002] With the development of the construction industry, a large amount of urban construction waste is generated throughout the country every year, and the degree of separate collection of construction waste is not high, mostly mixed collection, and the treatment and resource utilization of construction waste is poor. The building formwork wall is a new type of building wall structure. The steel plate mesh used in the building formwork wall is produced in the factory directly according to the wall height requirements. It can be assembled on site and poured concrete. It is widely used in multi-storey and small high-rise buildings. After the concrete is poured on the wall, the expanded metal mesh does not need to be dismantled a...

AI Technical Summary

Problems solved by technology

At present, the concrete poured in the building formwork is conventional self-leveling commercial concrete, which is easy to segregate, and the on-site civilized construction is poor. The price of sand, gravel and cement in the market has increased greatly, and the cost is high, which is not conducive to the promotion of building formwork structures. The effect of heat preservation and sound insulation not ideal

Chinese patent 1624269A discloses a building formwork wall component, which includes two formwork walls arranged face to face, and the hinge joint connects the two formwork walls at a certain distance and stacked together. It is characterized in that: the one The template wall is expanded metal, and the other template wall is a lightweight composite board. The lightweight composite board is one of calcium silicate board, fiber cement board, lightweight lime board, and fireproof board. Fireproof, thermal insulation, and sound insulation performance of the wall; however, the construction volume of a layer of lightweight composite board outside the wall is large, and the overall performance of the wall is poor