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Cement-based quick repair mortar for internal wall and preparation method of mortar

A repairing mortar and cement-based technology, applied in the field of building materials, can solve problems such as insufficient water resistance, and achieve the effects of excellent water resistance, few components and simple preparation process

Pending Publication Date: 2019-03-26
湖南大迈新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water resistance of this magnesium phosphate cement-based quick repair mortar is still insufficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0038] The cement-based rapid repair mortar for interior walls of the present invention is prepared by mixing the following components by weight: 200 parts of ordinary portland cement, 200 parts of sulphoaluminate cement, 600 parts of sand, 180 parts of water, heavy carbonic acid 100 parts of calcium, 5 parts of lithium sulfate, 2 parts of polycarboxylate water reducer, 1.5 parts of hydroxypropyl methylcellulose ether, 20 parts of vinyl acetate-ethylene copolymer rubber powder, 2 parts of SM-20 wetting and thickening agent , and 5 parts of gluconic acid.

[0039] The cement-based rapid repair mortar for interior walls prepared according to this scheme is quick-drying, has no shrinkage, no cracking, is waterproof, and requires no maintenance.

Embodiment approach 2

[0041] The cement-based rapid repair mortar for interior walls of the present invention is prepared by mixing the following components by weight: 300 parts of ordinary portland cement, 100 parts of sulphoaluminate cement, 650 parts of sand, 200 parts of water, heavy carbonic acid 80 parts of calcium, 20 parts of light calcium carbonate, 3 parts of lithium sulfate, 2 parts of polycarboxylate water reducer, 2 parts of hydroxyethyl methyl cellulose ether, 10 parts of acrylic polymer powder, SM-20 wetting 1 part of tackifier, and 2 parts of salicylic acid.

[0042] The cement-based rapid repair mortar for interior walls prepared according to this scheme is quick-drying, has no shrinkage, no cracking, is waterproof, and requires no maintenance.

Embodiment approach 3

[0044] The cement-based rapid repair mortar for interior walls of the present invention is prepared by mixing the following components by weight: 250 parts of ordinary Portland cement, 150 parts of sulphoaluminate cement, 620 parts of sand, 160 parts of water, heavy carbonic acid 75 parts of calcium, 25 parts of light calcium carbonate, 1 part of lithium sulfate, 2 parts of polycarboxylate superplasticizer, 3 parts of hydroxypropyl methylcellulose ether, 15 parts of styrene-butadiene rubber powder, SM-20 moisturizing enhancer 0.5 parts of adhesive, and 3 parts of lactic acid.

[0045] The cement-based rapid repair mortar for interior walls prepared according to this scheme is quick-drying, has no shrinkage, no cracking, is waterproof, and requires no maintenance.

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PUM

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Abstract

The invention discloses cement-based quick repair mortar for an internal wall and a preparation method of the mortar, wherein the cement-based quick repair mortar for the internal wall is prepared from the following ingredients in parts by weight: 200-300 parts of ordinary Portland cement, 100-200 parts of sulphoaluminate cement, 600-650 parts of sand, 150-200 parts of water, 100 parts of a filler, 1-5 parts of lithium sulfate, 2 parts of a water reducing agent, 1.5-3 parts of cellulose ether, 10-30 parts of rubber powder, 0.5-2 parts of a wetting tackifier and 2-6 parts of a retarder. The cement-based quick repair mortar for the internal wall prepared by the invention has few components, low raw material cost and good shrinkage and expansibility, can be dried quickly, does not shrink or crack, is waterproof, and does not require maintenance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a cement-based repair mortar and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, people's demand for buildings is also constantly developing. Many existing buildings can no longer meet the requirements of modern life, whether in terms of appearance or function, and are in urgent need of reinforcement and renovation. Cement-based repair mortar is the most widely used material. It has the advantages of good durability, high strength, non-toxic, non-polluting, cheap, and strong adaptability. It has been widely used in structural reinforcement. [0003] The existing repair materials include traditional inorganic repair materials such as ordinary portland cement repair mortar, polymer repair materials and polymer modified repair materials. Among them, inorganic repair materials have the advantages of high strength, good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/72C04B111/27
CPCC04B28/065C04B2111/27C04B2111/72
Inventor 徐跃文杨小钱许章文
Owner 湖南大迈新材科技有限公司
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