Magnesium phosphate-based foam concrete thermal insulation material

Abstract

The invention provides a magnesium phosphate-based foam concrete thermal insulation material. The magnesium phosphate-based foam concrete thermal insulation material is prepared from the following raw materials in parts by weight: 60-90 parts of magnesium compound, 1-8 parts of active foaming agent, 0.1-0.3 part of dense air entraining agent, 20-35 parts of mineral admixture, 0.5-1 part of high-efficiency water reducing agent, 5-15 parts of composite retarder, 20-30 parts of phosphate, 75-125 parts of quartz sand, 0.5-2 parts of water-resistant agent and 5-8 parts of pH stabilizer. The invention also provides a preparation method of the magnesium phosphate-based foam concrete thermal insulation material. The magnesium phosphate-based foam concrete thermal insulation material has the characteristics of high early strength, good fluidity, uniform pores, excellent thermal resistance, easy construction, low toxicity, non-flammability, environmental protection and energy saving.

Description

Technical field [0001] The present invention relates to the field of thermal insulation materials, and more particularly to a phosphate-based foam concrete thermally insulating material. Background technique [0002] Energy shortage is the problem of universal attention at home and abroad. With the proposal of my country's green development concept, building energy saving has become the most effective in various energy-saving methods. However, with the rapid development of my country's construction industry, the concept of "high quality and high requirements" also came into being, the difficulty of construction is also increasing, and the existing insulation insulation materials are difficult to meet increasingly stringent engineering needs. The traditional thermal insulation material has a high thermal conductivity, low early strength, poor refractive performance, poor bonding resistance, large density, long maintenance period, complex construction process, so it is urgent to de...

AI Technical Summary

Problems solved by technology

[0012] To sum up, the current inorganic thermal insulation materials generally use traditional inorganic materials as raw materials, and adopt the "inorganic material + additive + lightweight aggregate" bonding method, most of which have uneven pores, poor fluidity, low early strength, and condensation. Disadvantages such as long time, poor environmental protection, and limited use conditions

Organic thermal insulation materials generally have disadvantages such as poor fire resistance and high toxicity

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