Low-cost gypsum-based self-leveling material

Abstract

The invention discloses a low-cost gypsum-based self-leveling material . The low-cost gypsum-based self-leveling material is prepared by mixing the following raw materials: desulfurized gypsum alpha gypsum powder, fly ash, an exciting agent, a water reducing agent, a defoaming agent, a suspension stabilizer, a water-retaining agent, rubber powder, a water repellent and a retarder. According to the present invention, the power plant desulfurization by-product desulfurization gypsum and the solid waste fly ash are adopted as the main raw materials, such that the resource utilization of the solid waste is achieved, the machine-made sand or the river sand is not required, the quartz sand ore or the natural river sand is not required, the energy is saved, the carbon emission is reduced, and the environmental resource pressure is relieved; and the obtained low-cost gypsum-based self-leveling material product is low in cost, good in fluidity and high in flexural and compressive strength, and all indexes are higher than the requirements specified by the existing industrial standard JC / T1023-2021 Gypsum-based self-leveling Mortar.

Description

technical field [0001] The invention relates to a gypsum-based self-leveling material, in particular to a low-cost gypsum-based self-leveling material. Background technique [0002] Ground leveling is an important part of construction in the construction industry. At present, the main method of ground leveling is to use ground self-leveling materials for leveling. Ground self-leveling materials are mainly inorganic self-leveling materials, which are further divided into cement-based self-leveling materials and gypsum-based self-leveling materials. Among them, gypsum-based self-leveling materials have the incomparable advantages of traditional cement-based self-leveling materials, such as high leveling accuracy, no cracking and no hollowing, controllable thickness, mechanized construction, high efficiency, short construction period, energy saving, and good thermal insulation performance. [0003] However, since most of the gypsum-based self-leveling materials currently on t...

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Problems solved by technology

The self-leveling material α-type high-strength gypsum powder is the cementitious material, but it uses fine river sand as the aggregate and supplemented with cement. The cost is high and it is not conducive to environmental protection. In addition, fine river sand or quartz sand also faces high costs , environmental pollution, mining difficulties, and the self-leveling material has low flexural strength and compressive strength

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