Sulfur and phosphate cement insulation mortar or insulation board

Abstract

The invention relates to a sulfur and a phosphate cement insulation mortar or an insulation board, the insulation mortar and the insulation board are prepared by uniformly mixing the following raw materials by weight: 9-36 parts of heavy roasted magnesium oxide, 9-32 parts of dihydric phosphate, 0.5-7 parts of thickening time control agent, 6-25 parts of light roasted magnesium oxide, 0.5-7 parts of sulfur-containing component, 1-25 parts of industrial waste residue powder, 0-25 parts of reinforced thickening agent, 1-20 parts of diatomite, 5-35 parts of expansion aggregate, 0-5 parts of polystyrene foam particles, 1-15 parts of dispersible latex powder and 0-0.2 parts of chopped fiber. The insulation board can be a solid board material or a hollow board material. The sulfur and phosphate cement insulation mortar or the insulation board enables simple technology, and is especially suitable for constructing in low temperature season, no hollowing crack phenomena can be generated after constructing, and the sulfur and phosphate cement insulation mortar or the insulation board is especially suitable for insulation heat insulation material of building walls.

Description

technical field [0001] The invention relates to a mortar and a plate in the technical field of construction engineering, in particular to a sulfur-phosphate cement thermal insulation mortar or thermal insulation board. Background technique [0002] In new energy-saving buildings and energy-saving renovation of existing buildings, the method of hanging polystyrene foam insulation board + glass fiber mesh cloth + plastering mortar on the external wall is usually adopted, but because the fire performance of polystyrene foam insulation board is very low Poor, there have been hundreds of fire accidents in many cities in China, and this construction method will soon be eliminated by the country. It is a good method for fire accidents, and the construction is simple. In the energy-saving renovation of existing buildings, the advantages are more obvious. Therefore, the method that building exterior wall adopts whitewashing thermal insulation mortar and pasting thermal insulation bo...

AI Technical Summary

Problems solved by technology

[0004] In the patent documents of the above-mentioned thermal insulation mortar, the thermal insulation mortar made of ordinary Portland cement in Chinese invention patent application 200710086658.9 has relatively low strength and limited bonding ability with the base material; the Chinese invention patent application 200810047668.6 is made of sulphoaluminate cement Insulation mortar has large dry shrinkage, easy cracking, and poor frost resistance; Chinese invention patent application 200710097802.9 The insulation mortar made of magnesium oxychloride cement has a serious defect of "soft core" during winter construction, which affects the strength of the mortar and the quality of the project ; Chinese invention patent application 200910049875.X uses magnesium phosphate cement to make thermal insulation mortar. Due to the large amount of dihydrogen phosphate consumed, the cost of mortar is high, and its thermal insulation performance is completely dependent on polystyrene foam particles, which reduces the fire performance. Therefore, it is difficult to popularize. If the consumption of dihydrogen phosphate can be reduced and the economy of thermal insulation mortar can be improved, the thermal insulation mortar with magnesium phosphate cement as the main cementitious material will have a larger market, and the prospect of popularization and application is broad.