Environment protection and energy-saving novel heat insulation building material and preparation method thereof

Abstract

The invention discloses an environment protection and energy-saving novel heat insulation building material, which is prepared from, by weight, 80-90 parts of Portland cement, 8-10 parts of sulphate aluminium cement, 14-18 parts of fly ash, 8-10 parts of silicon ash, 2-4 parts of anti-crack enhancer, 1-2 parts of curing agent, 2-4 parts of fiber, 1-3 parts of calcium stearate, 0.1 part of foam stabilizer, 62-65 parts of water, 8-10 parts of hydrogen peroxide. The building material is green and environment-friendly, fireproof and high temperature resistant; the fireproof temperature is up to over 1000 DEG C; the combustion performance is grade A; through the test verification, the heat conductivity is about 0.05 W / (m.K), and the material is light in weight and low in density and water absorption rate; the density is 130-150 kg / m3; the waterproof property is good; the building material can be widely applied to a building wall slab, and especially applicable to the wall slab of an air control heat insulation warehouse. Meanwhile, the building material is simple in technique and high in production efficiency; the cost can be reduced to about 130 Yuan / m3; thus the building material is good for popularization and use on a large scale.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to an environmentally friendly and energy-saving new thermal insulation building material and a preparation method thereof. Background technique [0002] Foamed cement is to fully foam the required formula raw materials mechanically through chemical principles, and mix the foam and cement slurry evenly, and then carry out cast-in-place construction or mold molding through the chemical reaction between raw materials, and is formed by natural curing. A new type of lightweight insulation material containing a large number of closed pores. It belongs to the bubble-like thermal insulation material, and its outstanding feature is that it forms closed foam pores inside the concrete, which makes the concrete lightweight and thermally insulated. [0003] This year, with the extensive implementation of the national energy-saving policy, the industrial development of fo...

AI Technical Summary

Problems solved by technology

However, the existing foamed cement is mainly based on strength, the thermal conductivity is above 0.1 W / (m K), and the smallest density reaches 250 kg / m³, and the water resistance is not good, which is not conducive to being used in building wallboards. It is especially not suitable for wall panels of controlled atmosphere insulation warehouses

Not only that, the cost of the existing foamed cement is about 220 yuan / m³, which will also restrict its further promotion and use