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Mortar anti-cracking agent and preparation method thereof

A technology of anti-cracking agent and mortar, applied in the field of mortar anti-cracking agent and its preparation, can solve the problems of low production cost, high cost, poor crack resistance of mortar, etc. The effect of ensuring quality stability

Active Publication Date: 2017-08-18
JIAHUA SPECIAL CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention aims to solve the problems of poor crack resistance and high cost of mortar in the prior art, and provides a new mortar crack resistance agent, which can not only improve the ready-mix The mortar is workable, and it can effectively prevent the mortar from cracking, and the production cost is low, which is more suitable for industrial production

Method used

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  • Mortar anti-cracking agent and preparation method thereof

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Effect test

Embodiment 1

[0030] An anti-cracking agent for mortar is composed of the following raw materials by weight percentage: attapulgite 45%, polyvinyl alcohol 15%, sodium lauryl sulfate 20%, fly ash 20%.

[0031] In the above formula, the attapulgite is passed through a 200-mesh sieve before use.

[0032] The preparation method of the mortar anti-cracking agent of the present embodiment is as follows:

[0033] A. Add polyvinyl alcohol and water into the mixing pot, the mass ratio of polyvinyl alcohol and water is 8:1, and heat up to 60°C;

[0034] B. Add the attapulgite clay weighed according to the formula into the mixing pot, heat and stir for 20 minutes;

[0035] C. by the sodium lauryl sulfate and sodium gluconate that take by prescription, naturally cool after stirring 5min, obtain organic-inorganic composite material;

[0036] D. Add the fly ash weighed according to the formula to the composite material obtained in step C, and grind to obtain the mortar anti-cracking agent.

[0037] Th...

Embodiment 2

[0041] An anti-cracking agent for mortar is composed of the following raw materials by weight percentage: 60% attapulgite, 10% polyvinyl alcohol, 10% sodium lauryl sulfate, 2% sodium gluconate, and 18% fly ash.

[0042] In the above formula, the attapulgite is passed through a 200-mesh sieve before use.

[0043] The preparation method of the mortar anti-cracking agent of the present embodiment is as follows:

[0044] A. Add polyvinyl alcohol and water into the mixing pot, the mass ratio of polyvinyl alcohol and water is 10:1, and heat up to 60°C;

[0045] B. Add the attapulgite clay weighed according to the formula into the mixing pot, heat and stir for 30 minutes;

[0046] C. by the sodium lauryl sulfate and sodium gluconate that take by prescription, naturally cool after stirring 5min, obtain organic-inorganic composite material;

[0047] D. Add the fly ash weighed according to the formula to the composite material obtained in step C, and grind to obtain the mortar anti-cr...

Embodiment 3

[0052] An anti-cracking agent for mortar is composed of the following raw materials by weight percentage: attapulgite 60%, polyvinyl alcohol 15%, sodium lauryl sulfate 13%, sodium gluconate 2%, and fly ash 10%.

[0053] In the above formula, the attapulgite is passed through a 200-mesh sieve before use.

[0054] The preparation method of the mortar anti-cracking agent of the present embodiment is as follows:

[0055] A. Add polyvinyl alcohol and water into the mixing pot, the mass ratio of polyvinyl alcohol and water is 12:1, and heat up to 60°C;

[0056] B. Add the attapulgite clay weighed according to the formula into the mixing pot, heat and stir for 40 minutes;

[0057] C. by the sodium lauryl sulfate and sodium gluconate that take by prescription, naturally cool after stirring 5min, obtain organic-inorganic composite material;

[0058] D. Add the fly ash weighed according to the formula to the composite material obtained in step C, and grind to obtain the mortar anti-cr...

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Abstract

The invention discloses a mortar anti-cracking agent and a preparation method thereof, which belongs to the technical field of building materials. The anti-cracking agent is prepared from the following raw materials by weight percent: 45 to 60 percent of attapulgite, 10 to 15 percent of polyvinyl alcohol, 10 to 20 percent of lauryl sodium sulfate, 0 to 2 percent of sodium gluconate, and 10 to 20 percent of coal ash. The anti-cracking agent disclosed by the invention is mainly used for resisting the crack of premix mortar; by combining the attapulgite and polyvinyl alcohol, good interface combination can be formed by virtue of a hydrogen bond; after the lauryl sodium sulfate, the sodium gluconate and the coal ash are added, when the prepared anti-cracking agent premix mortar resists the cracking, an effect for improving the internal cohensive force of the mortar, reducing the shrinkage of the mortar and improving the anti-cracking performance of the mortar can be realized; by adding the mortar anti-cracking agent disclosed by the invention, no stirring is needed when in use, time and labor are saved; and moreover, the raw material cost for preparing the anti-cracking agent is low, and the mortar anti-cracking agent is suitable for the industrialized mass production.

Description

technical field [0001] The invention relates to a mortar anti-cracking agent and a preparation method thereof, belonging to the technical field of building materials. Background technique [0002] With the technological progress of the construction industry and the improvement of civilized construction requirements, the on-site mixing mortar has increasingly shown its inherent defects, such as unstable mortar quality, large waste of materials, single type of mortar, low degree of civilized construction, and environmental pollution. Therefore, it is imperative to cancel the on-site mixed mortar and adopt industrialized ready-mixed mortar. It is to ensure the quality of construction projects, improve the modernization level of construction, realize the comprehensive utilization of resources, reduce urban pollution, improve the atmospheric environment, develop bulk cement, and achieve sustainability. An important step in development. my country's ready-mixed mortar has a preli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/26C04B14/10
CPCC04B14/102C04B40/0039C04B24/2623C04B24/16C04B24/10C04B18/08
Inventor 王宁
Owner JIAHUA SPECIAL CEMENT
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