A core material for energy-saving and lightweight composite sandwich wall panels

Abstract

The invention discloses a core veneer material for a energy-saving light composite sandwich wallboard, which is prepared from shock-resisting polystyrene granules, cement, modified coal ash, sand, water, a water reducing agent and hydroxypropyl methyl cellulose ester according to the weight ratio of (8-12):(350-400):(70-80):(220-260):(200-240):(6-8):(0.3-0.5). According to the invention, the modified coal ash can be partially used to replace cement, so that the amount of cement is reduced, the cost is reduced, the flowing property of slurry can be improved, and the comprehensive strength, the shock resistance and heat insulation property of the wallboard material can be improved. The core veneer material has the characteristics of energy conservation and environmental protection, light weight, economy, high strength, heat insulation, sound absorption and insulation, water resistance, dampness resistance, fire resistance, freezing resistance, shock resistance, usable area increasing and long service life, can ensure that the strength of the wallboard meets the code requirements, and has the advantages of simplicity and high convenience in construction, excellent processing property and the like.

Description

technical field [0001] The invention relates to a core board material, in particular to a core board material for an energy-saving lightweight composite sandwich wall board. Background technique [0002] At present, my country's wall material industry has begun to embark on the road of multi-variety development, and initially formed a wall material system based on block panels, such as concrete hollow blocks, paper-faced gypsum boards, and fiber cement sandwich panels. The proportion of light-weight composite sandwich wall panels at the modern level of wall materials is still very small, less than 1% of the total wall materials. Compared with industrially developed countries, it is 40-50 years behind, and its main performance In terms of core board materials, the existing core board materials on the market have the disadvantages of low strength, poor thermal insulation and sound insulation performance, and cracks caused by drying shrinkage. Therefore, accelerating technologic...

AI Technical Summary

Problems solved by technology

[0002] At present, my country's wall material industry has begun to embark on the road of multi-variety development, and initially formed a wall material system based on block panels, such as concrete hollow blocks, paper-faced gypsum boards, and fiber cement sandwich panels. The proportion of light-weight composite sandwich wall panels at the modern level of wall materials is still very small, less than 1% of the total wall materials. Compared with industrially developed countries, it is 40-50 years behind, and its main performance In the core board material, the core board materials on the existing market have the disadvantages of low strength, poor thermal insulation and sound insulation performance, cracks caused by drying shrinkage, and poor performance.