Early strength high wear-resisting self-leveling mortar used for ground repairing and preparation method thereof

Abstract

The invention discloses an early strength high wear-resisting self-leveling mortar used for ground repairing and a preparation method thereof, and the early strength high wear-resisting self-leveling mortar comprises the following components by weight: 35%-40% of P.052.5 ordinary portland cement; 15%-20% of a mineral admixture; 40%-55% of quartz sand or carborundum; 4%-6% of a special anti cracking agent; 0.5%-1% of an imported organic binder; 0.3%-0.5% of an inorganic salt strength enhancer; 0.1%-0.2% of an organic defoaming agent; 0.2%-0.4% of a high performance water reducing agent; 0.2%-0.4% of stabilizer cellulose; and 0.2%-0.5% of an erosion resistant additive. The early strength high wear-resisting self-leveling mortar is applied to construction by self leveling technology, can reduce the human, financial and material resources, is remarkable in economic benefit, is added with the high proportion of mineral admixture, is environmentally-friendly, utilizes industrial waste, is significant in social benefits and good in wear resistance, can be used for high wear resistance requirement ground, is good in corrosion resistance, and can be used for the ground in heavy chloride sulfate corrosion environment.

Description

technical field [0001] The invention relates to a dry powder mortar and a preparation method thereof, in particular to an early-strength and high wear-resistant self-leveling mortar for ground repair and a preparation method thereof. Background technique [0002] Since the 1970s, developed countries such as Japan, Europe and the United States have successively researched, developed and produced self-leveling floor materials, and have been widely used. In 1972-1973, the Japanese Housing Corporation first conducted basic research on gypsum-based self-leveling materials. In 1976, a construction test was carried out on gypsum-based self-leveling materials using α-hemihydrate gypsum as the base material. In 1977, gypsum-based self-leveling materials were used. Based on self-leveling materials for sale. Subsequently, Pai Ai Luo Company in West Germany used Type II anhydrite to produce a self-leveling material with a strength of 20-30MPa and a thickness of 10mm. The American Gyps...

AI Technical Summary

Problems solved by technology

[0004] At the same time, in order to achieve its early strength, the existing mortar often needs to be mixed with various cements, which makes the finished product difficult to control

Poor wear resistance, poor corrosion resistance

[0005] At present, the cement-based self-leveling mortar products on the market generally have low early strength, and the surface is prone to pulverization, sanding, cracking, etc.

Most of the raw materials are made of special cement as the base material, and the cost is relatively high

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