Novel gypsum surface layer self-leveling material

Abstract

The invention discloses a novel gypsum surface layer self-leveling material which is prepared from the following raw materials in parts: early strength ordinary Portland cement, quartz sand, anhydrite, low-viscosity hydroxypropyl methyl cellulose, a defoaming agent, water, high-alumina cement, ground calcium carbonate, redispersible latex powder, a water reducing agent and tartaric acid, wherein the proportion of the early strength ordinary Portland cement is 25%-40%, the proportion of the quartz sand is 5%-10%, and the proportion of the anhydrite is 4%-9%. According to the novel gypsum surface layer self-leveling material disclosed by the invention, the slurry can have ideal fluidity at a relatively low water cement ratio, and can be automatically unfolded and leveled only by virtue of the gravity of the slurry without external force, so that a flat mirror-like surface is obtained. By using the novel gypsum surface layer self-leveling material manufactured according to proportion, it is guaranteed that hollowing and cracking phenomena caused by different materials are avoided between different working procedures in the using process, and the construction technology is simple.

Description

technical field [0001] The invention relates to the field of self-leveling materials, in particular to a novel self-leveling material for a gypsum surface layer. Background technique [0002] The conventional construction process of the room floor of the decoration project is to use fine stone concrete backfill, cement mortar leveling, and then construct resin self-leveling or cement composite mortar self-leveling ground. Self-leveling refers to the use of self-leveling or slightly The material with auxiliary leveling function is the surface layer formed by paving after on-site mixing. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of self-leveling materials. [0003] Existing self-leveling materials have certain disadvantages when used, and there are many construction procedures, and different processes may produce hollowing and cracking due to different materials, and self-leveling materia...

AI Technical Summary

Problems solved by technology

[0003] Existing self-leveling materials have certain disadvantages when used, and there are many construction procedures, and different processes may produce hollowing and cracking due to different materials, and self-leveling materials produce harmful gases such as formaldehyde, benzene, ammonia, etc. It is beneficial to people's use and brings certain adverse effects to people's use process. Therefore, we propose a new type of self-leveling material for gypsum surface