Wear-resisting anti-crack cement-based self-leveling mortar and its production method

A self-leveling mortar and cement-based technology, which is applied in the field of building materials, can solve the problems affecting the construction process and the time when the project is put into use, endangering the quality of the self-leveling mortar, and insufficient flatness of the mortar surface, etc., to achieve good anti-foaming effect, The effect of small void ratio and rapid construction

Inactive Publication Date: 2017-12-01
张聪聪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The early strength is low. Since the cement-based self-leveling mortar generally uses ordinary Portland cement as the main cementing material, ultra-fine sand and high water-cement ratio are used, the early strength of the mortar is seriously insufficient, which directly affects the construction process. and the time when the project was put into use
[0005] (2) The flatness of the mortar surface is not enough. Due to the imperfect mortar formula, it is easy to produce surface sanding, peeling, hollowing, etc., which not only affects the appearance, but also directly endangers the quality of

Method used

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  • Wear-resisting anti-crack cement-based self-leveling mortar and its production method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Raw materials (by weight):

[0030] 20 parts of Portland cement, 10 parts of aluminate cement, 40 parts of aggregate, 10 parts of filler, 5 parts of mineral admixture, 0.5 part of redispersible latex powder, 0.5 part of superplasticizer, 0.5 part of expansion agent, 0.05 parts of shrinkage reducing agent, 0.05 parts of retarder, 0.1 part of water retaining agent (hydroxypropyl methyl cellulose ether), 0.05 parts of superplasticizer (sulfonated melamine formaldehyde condensate), 0.05 parts of defoamer.

[0031] Preparation:

[0032] Under the condition that the speed of the mixer is 100-200rpm, add Portland cement, aluminate cement, aggregate, filler and mineral admixture to the mixer in sequence according to the formula ratio, then increase the speed to 300-400rpm, and stir for 5-10min , and then add redispersible latex powder, high-efficiency water reducer, expansion agent, shrinkage reducer, retarder, water retention agent, superplasticizer and defoamer into the mixe...

Embodiment 2

[0034] 28 parts of Portland cement, 12 parts of aluminate cement, 44 parts of aggregate, 12 parts of filler, 6 parts of mineral admixture, 1 part of redispersible latex powder, 0.8 part of superplasticizer, 1 part of expansion agent, Shrinkage reducing agent 0.1 part, retarder 0.1 part, water retaining agent (cellulose ether or) 0.2 part, superplasticizer (sulfonated naphthalene formaldehyde condensate) 0.06 part, defoamer 0.15 part.

[0035] The preparation method of the above wear-resistant and crack-resistant cement-based self-leveling mortar is the same as in Example 1.

Embodiment 3

[0037] 32 parts of Portland cement, 14 parts of aluminate cement, 48 parts of aggregate, 14 parts of filler, 8 parts of mineral admixture, 1.5 parts of redispersible latex powder, 1.2 parts of superplasticizer, 1.5 parts of expansion agent, 0.15 parts of shrinkage reducing agent, 0.15 parts of setting retarder, 0.25 parts of water retaining agent (hydroxypropyl methylcellulose ether), 0.08 parts of superplasticizer (sulfonated melamine formaldehyde condensate and sulfonated naphthalene formaldehyde condensate), defoaming 0.2 parts of the agent.

[0038] The preparation method of the above wear-resistant and crack-resistant cement-based self-leveling mortar is the same as in Example 1.

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Abstract

The invention relates to a wear-resisting anti-crack cement-based self-leveling mortar and its production method. The wear-resisting anti-crack cement-based self-leveling mortar is characterized by being prepared from, by weight, 20-35 parts of Portland cement, 10-15 parts of aluminate cement, 40-50 parts of aggregate, 10-15 parts of filler, 5-10 parts of mineral admixtures, 0.5-2 parts of redispersible powder, 0.5-1.5 parts of high-efficient reducing agent, 0.5-2 parts of expanding agent, 0.05-0.2 part of shrinkage reducing agent, 0.05-0.2 part of retarder, 0.1-0.3 part of water-retaining agent, 0.05-0.1 part of super plasticizer, 0.05-0.2 part of antifoaming agents. The wear-resisting anti-crack cement-based self-leveling mortar is simple, convenient and fast in construction, and featured by high intensity, good mobility, wear-resistance, good crack resistance, high bonding strength, and excellent construction performance; the wear-resisting anti-crack cement-based self-leveling mortar can automatically and accurately level the ground, and meet the construction purpose of rapid construction and fast use.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a wear-resistant and crack-resistant cement-based self-leveling mortar for building indoor floors and a production method thereof. Background technique [0002] Cement-based self-leveling mortar refers to a powdery material composed of cement-based cementitious materials, fine aggregates, fillers and additives. After mixing with water or emulsion, it has a certain fluidity for leveling the ground. Cement-based self-leveling mortar has the characteristics of very good fluidity, self-leveling ability, low shrinkage rate, high compressive strength, etc., which can reduce construction time and speed up construction progress, and is widely used in residences, workshops, hospitals, shopping malls, supermarkets, etc. Public building indoor ground and industrial ground leveling projects. [0003] With the development of my country's economy and the improvement of ...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B18/02
CPCC04B28/06C04B18/023C04B2201/50C04B7/02C04B14/06C04B14/28C04B14/062C04B18/0427C04B22/0093C04B16/0633C04B22/147C04B18/08C04B24/10C04B22/066C04B24/2605C04B24/18C04B22/006C04B24/38C04B24/383C04B24/223C04B2103/50C04B24/226C04B18/0409C04B18/12C04B14/022
Inventor 张聪聪
Owner 张聪聪
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