Desulfurization alpha semi-hydrated gypsum self-leveling mortar

Abstract

The invention belongs to a construction mortar material, and particularly relates to desulfurization alpha semi-hydrated gypsum self-leveling mortar. The conventional cement-based self-leveling motor has the defects of low construction efficiency, low strength, massive cement consumption in mortar and disadvantage to energy conservation and environmental protection. The desulfurization alpha semi-hydrated gypsum self-leveling mortar is prepared by uniformly mixing and stirring the following materials in parts by weight: 40 to 60 parts of desulfurization alpha gypsum, 4 to 6 parts of cement, 20-30 parts of quartz sands of between 40 and 80 meshes, 20 to 30 parts of quartz sands of between 80 and 120 meshes, 0.06 to 0.10 part of retarder, 0.06 to 0.08 part of a water reducing agent, 0.08 to 0.10 part of a water-retaining agent, 0.05 to 0.08 part of a defoaming agent, 2 to 3 parts of re-dispersible gelatin powder, and 22 to 24 parts of water. The desulfurization alpha semi-hydrated gypsum self-leveling mortar has the advantages of high early-stage strength, strong adhesive force with a substrate, no radiation, low emission of CO2, high construction efficiency, and resource utilization of desulfurization gypsum.

Description

technical field [0001] The invention belongs to building mortar materials, in particular to a self-leveling mortar based on desulfurization alpha hemihydrate gypsum. Background technique [0002] In construction engineering, mortar is an important common material, especially mortar for the ground, and it is a material that must be used in every building, every house, and every ground. In order to save manpower and improve construction speed, people have invented self-leveling mortar that can automatically level. The prior art cement-based self-leveling mortar is composed of cement as a basic raw material, sand as an auxiliary material, and a retarder, a water reducer, a water retaining agent, and the like. The disadvantages of the prior art are: 1. The cement-based self-leveling mortar has slow leveling speed and low construction efficiency. 2. The strength of cement-based mortar is low, and there are often phenomena such as dusting on the cement floor, uneven ground, crac...

AI Technical Summary

Problems solved by technology

The disadvantages of the prior art are: 1. The cement-based self-leveling mortar has slow leveling speed and low construction efficiency

2. The strength of cement-based mortar is low, and there are often phenomena such as dusting on the cement floor, uneven ground, cracking, etc., so that people have to lay a protective layer on the ground, which increases the construction and use costs of buildings.

3. Cement-based mortar consumes a lot of cement, and the cement production process consumes a lot of energy and pollutes the environment, which is not conducive to energy saving and environmental protection

In my country, due to immature technology for desulfurized gypsum products, lack of relevant technical standards, high processing costs, and high energy consumption, desulfurized gypsum cannot be utilized as a resource in my country's building materials industry. A large amount of desulfurized gypsum has accumulated, causing pollution and destroy

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