Light cement foam insulation plate and production method thereof

Abstract

The invention discloses a light cement foam insulation plate which comprises the following raw materials in parts by weight: 70-80 parts of 52.5 general silicate cement, 40-50 parts of coal ash, 30-40 parts of silicon powder, 15-20 parts of river sand, 10-15 parts of fluorite slag, 5-10 parts of argil, 15-20 parts of plant straw powder, 18-25 parts of water glass, 20-30 parts of vermiculite, 8-12 parts of foaming agent, 1-2 parts of foam stabilizing agent, 1-2 parts of hydroxyethyl cellulose, 3-5 parts of modified tree ash, 1-2 parts of polycarboxylate high-performance water-reducing agent and 300-360 parts of water. The cement foam plate produced with the method has the advantages of excellent insulation and construction performances, good bonding effect, no empty drum cracking phenomenon, strong negative air pressure resistance, high strength, light weight, pressure resistance, good weather resistance, environmental protection, energy saving, non-toxicity, harmlessness and the like, and has very wide market space and development prospect in the field of building energy-saving applications in our country.

Description

technical field [0001] The invention relates to a lightweight cement foam insulation board and a preparation method thereof, belonging to the field of building materials. Background technique [0002] With the popularization of building energy saving and the continuous improvement of people's demand for the comfort of living environment, thermal insulation materials have been paid more and more attention by people. The previously used organic and flammable insulation materials quickly withdraw from the market, such as polyurethane and polystyrene board. Inorganic non-combustible insulation materials have become the mainstream of building energy-saving insulation, such as rock wool boards, vitrified microbeads, and foamed cement insulation boards. However, the output of inorganic rock wool board and vitrified microbeads is low, which cannot meet the needs of the society. At the same time, the production of rock wool board consumes a lot of energy and pollutes the environment...

AI Technical Summary

Problems solved by technology

However, most of the cement foam boards currently on the market use sulphoaluminate cement as the main raw material, which makes the product have relatively high early strength, large strength attenuation in the later stage, and relatively high capacity (mostly 250kg / m 3 -300kg / m 3 ), relatively poor thermal insulation performance, relatively high water absorption, high brittleness, relatively poor durability, etc.