Method for producing air entrapping building block by utilizing ardealite

Abstract

The invention provides a method for producing an air entrapping building block by utilizing ardealite, comprising the following processing steps: mixing materials according to the following mass ratio: 50-70 percent of ardealite, 10-15 percent of cement, 15-25 percent of yellow phosphorus slag and 5-10 percent of lime, then adding water according to 85-100 percent of the mass of the mixture, adding aluminium powder according to 0.04-0.06 percent of the mass of the mixture and adding an auxiliary agent according to 0.5-0.8 percent of the mass of the mixture, and then mixing to prepare a sizingagent; and finally obtaining the air entrapping building block through foaming, standing and steam curing. The air entrapping building block has the advantages of stable physical properties, light weight, good heat-insulation property, high waste use ratio, simple process, low cost, environmental protection, natural resource saving and the like, and can be used as non-load bearing partitions of urban high-rise buildings and as heat-insulation building blocks of low-temperature warehouses, heat-insulation warehouses and cold storage warehouses of industrial equipment.

Description

technical field [0001] The invention relates to a method for producing an aerated block, in particular to a method for producing an aerated block by using phosphogypsum, which belongs to the technical field of building materials. Background technique [0002] Phosphogypsum is a solid waste produced during the production of high-concentration phosphate fertilizers. According to incomplete statistics, the domestic stockpile of phosphogypsum has reached more than 100 million tons, and 30 million tons of phosphogypsum will be newly produced every year. Except for about 10% of phosphogypsum, the rest is still mainly piled up. As the output of high-concentration phosphate fertilizer increases and the grade of phosphate rock raw materials decreases, the amount of phosphogypsum will increase. It is estimated that by 2010, the amount of phosphogypsum in the country will reach 50 million tons. Such a large amount of phosphogypsum will restrict the sustainable development of phosphate...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of with phosphogypsum as main raw material, cement, yellow phosphorus slag, lime are reinforcing material and activator, the method for producing the aerated block whose physical and chemical index meets the quality requirement of national non-load-bearing wall block, with Alleviate environmental pollution caused by phosphogypsum stockpiling, and at the same time provide more alternative products for the smooth implementation of "no sticking" work