High belite sulphoaluminate cement based self-leveling mortar

Abstract

The invention discloses high belite sulphoaluminate cement based self-leveling mortar. The mortar comprises the following powder raw materials in parts by weight: 30-40 parts of high belite sulphoaluminate cement, 5-7 parts of anhydrite, 12-15 parts of heavy calcium powder, 40.5-45 parts of river sand, 2-2.5 parts of emulsion powder, 0.35-0.45 part of water reducing agent, 0.35-0.45 part of defoaming agent, 0.1-0.2 part of cellulose ether, 0.1-0.2 part of tartaric acid, and 0.05-0.1 part of lithium carbonate. According to the high belite sulphoaluminate cement based self-leveling mortar, the high belite sulphoaluminate cement is used as the only cement-based gel material, so that the performances are outstanding, and various additives can be specifically selected, and as a result, the adaptability of the gel material and the various additives can be obviously improved; the preparation technology processes of the self-leveling mortar can be greatly simplified, and moreover, the product performance stability can be greatly improved; meanwhile, the cost can be decreased.

Description

technical field [0001] The invention relates to cement-based self-leveling mortar in the field of building materials, in particular to a high belite sulfoaluminate cement-based self-leveling mortar. Background technique [0002] Cement-based self-leveling mortar is composed of cement-based cementitious materials, fine aggregates, fillers and various additives. It is a ground material that can be flowed and leveled after mixing with water and a little auxiliary paving. It has good fluidity, stability, wear resistance and adhesiveness, which can reduce construction time and speed up construction progress. It is mainly used for large-area warehouses, production workshops, houses, corridors, underground garages, etc. It can also be used for ground leveling and other ground decoration projects. It is a new type of ground material with broad application prospects. [0003] Cement-based self-leveling mortar technology has been quite mature in Europe, America and Japan, and its con...

AI Technical Summary

Problems solved by technology

[0009] The multi-component cementitious material system makes the preparation process of self-leveling mortar particularly complicated, because there are certain adaptability problems between the cements of these different systems, which makes the performance control of self-leveling mortar more difficult, and the management cost is greatly increased. Moreover, the price of high alumina cement, sulfoaluminate cement and expansion agent itself is high, which makes the preparation cost of self-leveling mortar high, which affects the application and promotion.

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