Quick-hardening anti-cracking cement-based self-leveling mortar powder, slurry, mortar and preparation method thereof

A self-leveling mortar and cement-based technology, which is applied in the field of mortar and preparation, rapid hardening and anti-cracking cement-based self-leveling mortar powder, and slurry, can solve the problems of unstable quality of self-leveling mortar, low tensile bonding strength, volume Poor stability and other problems, to achieve the effect of improving tool turnover efficiency, improving mechanical properties, quality and performance fluctuations

Pending Publication Date: 2019-06-04
TANGSHAN POLAR BEAR BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The first object of the present invention is to provide a rapid hardening and anti-cracking cement-based self-leveling mortar powder, using fast setting rapid hardening high belite sulfoaluminate cement as a unitary system of the only cementitious material, to solve the problem caused by the prior art The cementitious material system in the compound has complex components and poor volume stability, resulting in unstable quality of self-leveling mortar, easy cracking, and low tensile bonding strength.

Method used

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  • Quick-hardening anti-cracking cement-based self-leveling mortar powder, slurry, mortar and preparation method thereof
  • Quick-hardening anti-cracking cement-based self-leveling mortar powder, slurry, mortar and preparation method thereof
  • Quick-hardening anti-cracking cement-based self-leveling mortar powder, slurry, mortar and preparation method thereof

Examples

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preparation example Construction

[0060] In a second aspect, the present invention provides a method for preparing rapid-hardening and anti-cracking cement-based self-leveling mortar powder, comprising the following steps: mixing fast-setting rapid-hardening high-Belite sulphoaluminate cement and / or white fast-setting fast Hard high belite sulfoaluminate cement is mixed with fine aggregate, water reducer, defoamer, latex powder, retarder and coagulant to obtain the described rapid hardening and anti-cracking cement-based self-leveling mortar powder .

[0061] In a third aspect, the present invention provides a rapid-hardening and anti-cracking cement-based self-leveling mortar, including water and the rapid-hardening and anti-cracking cement-based self-leveling mortar powder of the present invention, wherein the weight ratio of water to powder is 0.14~ 0.28.

[0062] In the present invention, the fast-setting rapid-hardening high-Belite sulfoaluminate cement is the only cementitious material. The cement has e...

Embodiment 1～9

[0069] Examples 1 to 9 are respectively a kind of rapid-hardening and anti-cracking cement-based self-leveling mortar, wherein the raw material ratio of the mortar powder in terms of weight percentage is shown in Table 1. The preparation method of the rapid-hardening anti-cracking cement-based self-leveling mortar in Examples 1 to 9 is as follows: the fast-setting rapid-hardening high-Belite sulfoaluminate cement or white fast-setting rapid-hardening high-Belite sulfoaluminate cement , mineral admixture, fine aggregate, water reducer, defoamer, latex powder, retarder, coagulant and water are mixed together to obtain the rapid hardening and anti-cracking cement-based self-leveling mortar.

[0070] Table 1 Raw material ratio of the rapid hardening and anti-cracking cement-based self-leveling mortar powder in Examples 1 to 9

[0071]

[0072]

[0073] The fine aggregate, water reducer, thickener, defoamer, latex powder, retarder and coagulant used in Examples 1-9 are all th...

Embodiment 10

[0078] Compared with Example 9, the difference is that the fine aggregate used in the rapid hardening and anti-cracking cement-based self-leveling mortar in this example is 80-120 mesh white quartz sand. Other raw material types and components are all the same as in Example 9.

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Abstract

The invention provides quick-hardening anti-cracking cement-based self-leveling mortar powder, slurry, mortar and a preparation method, and relates to the field of building materials. The mortar powder comprises the following raw materials in percentage by weight: 30%-50% of quick-cementing and -hardening high-belite sulphoaluminate cement, 46.19%-51.97% of a fine aggregate, 0.15%-0.3% of a waterreducing agent, 0%-0.04% of a thickening agent, 0.05%-0.2% of a defoaming agent, 0.5%-3.5% of latex powder, 0.075%-0.25% of a retarder and 0.15%-0.3% of a coagulation accelerator. The self-leveling mortar has the excellent properties of acid corrosion resistance, small shrinkage, high tensile bonding strength, high setting and hardening speed and the like, and is suitable for self-leveling floors,industrial floors, civil floors, artistic floors and the like in an acid salt environment.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a rapid-hardening and anti-cracking cement-based self-leveling mortar powder, slurry, mortar and a preparation method. Background technique [0002] Cement-based self-leveling mortar for ground is made by mixing cement-based cementitious materials, fine aggregates, fillers, and powder additives. Before use, it needs to add an appropriate amount of water and stir evenly. It has excellent fluidity and can be automatically leveled. ground materials. The material is suitable for floor decoration of industrial plants and homes. Cement-based self-leveling mortar for ground has the advantages of high early strength, good fluidity, easy laying, fast construction speed, short construction period, etc., and has dual functions of bearing and decoration. [0003] Since the 1980s, the United States, France, Germany and other countries have successively developed cement-based self...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
Inventor 葛仲熙刘成健陈智丰张振秋张淑艳王国兴翟朝阳戚爱荣
Owner TANGSHAN POLAR BEAR BUILDING MATERIAL
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