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Plastering anti-crack waterproof mortar and preparation method thereof

A technology of waterproof mortar and waterproofing agent, which is applied in the field of building materials, can solve the problems that plastering mortar does not have heat resistance, fire prevention, low durability of plastering mortar, not economical and environmentally friendly, etc., so as to improve bulges and cracks and reduce elasticity Modulus, peeling reduction effect

Active Publication Date: 2020-12-29
佛山市建通混凝土制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, plastering mortar generally does not have the performance of heat resistance and fire prevention. When a fire breaks out in a building, the temperature of the wall surface will change due to the fire. The temperature expands, and it is easy to produce bulges or cracks, which is difficult to meet the higher actual engineering needs. The durability of the plastering mortar is not high, and the wall after the fire needs to be repaired in a large area, which is not economical and environmentally friendly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of plastering anti-cracking waterproof mortar, which is prepared by the following steps: Weigh the raw material components according to the proportion, first mix 280kg / m 3 Cement, 78 kg / m 3 Stone powder, 1.3 kg / m 3 Polypropylene anti-split fibers and 1120 kg / m 3 Sand pre-mixed and stirred for 1min, then mixed with 185 kg / m 3 Water, 8.1 kg / m 3 Admixture, 10.3 kg / m 3 Water repellant, 36 kg / m 3 Coumarone resin and 42 kg / m 3 Aluminum dihydrogen phosphate, stirred and mixed for 5 minutes to obtain the mortar;

[0042] Among them, the admixture is formed by mixing a thickening water-retaining agent and an open time regulator in a mass ratio of 10:3.

Embodiment 2

[0044] A kind of plastering anti-cracking waterproof mortar, which is prepared by the following steps: Weigh the raw material components according to the proportion, first mix 314kg / m 3 Cement, 66 kg / m 3 Stone powder, 0.8 kg / m 3 Polypropylene anti-split fibers and 1100 kg / m 3 The sand is pre-mixed and stirred for 2 minutes, and then mixed with 215kg / m 3 Water, 6.5 kg / m 3 Admixture, 8.9kg / m 3 Water repellant, 44 kg / m 3 Coumarone resin and 34 kg / m 3 Aluminum dihydrogen phosphate, stirred and mixed for 3 minutes to obtain the mortar;

[0045]Among them, the admixture is formed by mixing a thickening water-retaining agent and an open time regulator in a mass ratio of 9:5.

Embodiment 3

[0047] A kind of plastering anti-cracking waterproof mortar, which is prepared by the following steps: Weigh the raw material components according to the proportion, first mix 300kg / m 3 Cement, 72 kg / m 3 Stone powder, 0.9 kg / m 3 Polypropylene anti-split fibers and 1320 kg / m 3 The sand is pre-mixed and stirred for 2 minutes, and then mixed with 195kg / m 3 Water, 7.6kg / m 3 Admixture, 11.7kg / m 3 Water repellant, 48 kg / m 3 Coumarone resin and 28 kg / m 3 Aluminum dihydrogen phosphate, stirred and mixed for 5 minutes to obtain the mortar;

[0048] Among them, the admixture is formed by mixing a thickening water-retaining agent and an open time regulator according to a mass ratio of 15:4.

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PUM

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Abstract

The invention relates to the field of concrete, and particularly discloses plastering anti-crack waterproof mortar and a preparation method thereof. The mortar comprises 280-314 parts of cement; 1100-1320 parts of sand; 66-78 parts of stone powder; 6.5-8.1 parts of an admixture; 0.8-1.3 parts of polypropylene anti-cracking fibers; 8.9-11.7 parts of a waterproof agent; 36-48 parts of coumarone resin; 28-42 parts of aluminum dihydrogen phosphate; 185-215 parts of water; the preparation method comprises the following steps: sequentially mixing and stirring the raw materials of the mortar to obtain the mortar. The coumarone resin is cracked and shrunk under the high-temperature condition, so that the high-temperature expansion efficiency of the plastering mortar is relieved, the high-temperature bonding strength of the aluminum dihydrogen phosphate is improved, and the phenomena of bulging and cracking occurring after a mortar fire disaster are improved.

Description

technical field [0001] The application relates to the field of building materials, more specifically, it relates to a plastering anti-cracking waterproof mortar. Background technique [0002] With the advancement and development of grassroots construction and urbanization, the demand for plastering mortar used in building decoration projects is also increasing. Plastering mortar is a type of plastering mortar used to level or protect the base surface of the building Mortar, collectively referred to as mortar, is suitable for decoration of interior and exterior walls, cover surfaces, bottom surfaces, ceiling plastering, etc. of construction and decoration projects, and plays a protective and beautifying role. [0003] At present, plastering mortar generally does not have the performance of heat resistance and fire prevention. When a fire breaks out in a building, the temperature of the wall surface will change due to the fire. The temperature expands, and it is easy to produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B22/16C04B24/26C04B111/34C04B111/27
CPCC04B22/16C04B24/26C04B24/2617C04B28/04C04B2111/00482C04B2111/27C04B2111/343C04B2201/50C04B14/06C04B18/12C04B2103/44C04B2103/465C04B2103/0068C04B16/0633C04B2103/65C04B22/002
Inventor 高春雷梁俊文郑凯升梁德强黄育林
Owner 佛山市建通混凝土制品有限公司
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