Burning-free and steaming-free brick microcrystalline assistant and preparation method thereof

Abstract

The invention discloses a burning-free and steaming-free brick microcrystalline assistant and a preparation method thereof, and belongs to the technical field of building materials. The burning-free and steaming-free brick microcrystalline assistant is prepared from the following raw materials in percentage by weight: 18-30% of saturated fatty acid, 5-12% of organic tertiary amine, 0.25-0.35% of chloride, 0.15-0.75% of inorganic alkali, and the balance of inorganic acid salt. According to the burning-free and steaming-free brick microcrystalline assistant and the preparation method thereof, the quality of burning-free and steaming-free bricks prepared by using the burning-free and steaming-free brick microcrystalline assistant can be significantly improved, and thus the burning-free and steaming-free bricks have the characteristics of the low admixture amount, high-efficiency activity excitation, the good process performance, the good machine shaping performance, the good plasticity, the high early strength, the low water absorption and excellent freeze-thaw resistance; and a more effective solidification technology for large-scale comprehensive utilization of industrial waste residue and sand is provided, broad market prospects are achieved in manufacturing of the building materials, and the very important significance for saving arable land, reducing environmental pollution,turning waste into treasure and recycling resources is achieved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a double brick-free microcrystalline additive and a preparation method thereof. Background technique [0002] With the progress of society and large-scale industrialization, natural resources are less and less, and industrial waste residues are increasing. It is urgent to save natural resources and develop high-tech comprehensive utilization of industrial waste residues. [0003] Fly ash, coal gangue, red mud, dredging sediment, industrial gypsum (such as desulfurization gypsum, phosphogypsum, titanium gypsum, fluorine gypsum, carbide slag, smelting waste residue, tailings slag, etc.) There are more and more industrial waste residues. Stockpiling not only takes up a lot of land, but also causes serious harm to the environment. The desert not only has a large stock, but also causes serious air pollution with the wind, and it is constantly encroaching on the surrounding...

AI Technical Summary

Problems solved by technology

[0004] With the expansion of urbanization, the demand for building materials is also increasing, and industrial waste and sand contain a large amount of SiO needed for building materials. 2 、Al 2 o 3 , Ca ions and other substances, but these substances in waste slag and sand are not active under normal conditions, and it is difficult to form the cementitious material required for manufacturing building materials. To prepare double-free bricks (steam-free and non-sintered bricks), they must be sintered and steam-cured. , Chemical activity can be excited to form, but the first two methods consume a lot of energy, but also cause different degrees of pollution to the environment

Chemical activity excitation, as a new technology, has been paid more and more attention by people, but the current domestic and foreign existing technologies have the problems of poor activity excitation effect, long molding time, slow strength growth, high water absorption rate, and poor freeze-thaw resistance.