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Alkali efforescence resistant decorative plaster

A facing mortar and anti-efflux technology, which is applied in the field of anti-efflorescence facing mortar, can solve the problems of prone to color difference and stubble, poor external wall adhesion, poor self-cleaning ability, etc., and achieves superior anti-efflux performance. , strong adhesion, the effect of improving adhesion

Inactive Publication Date: 2017-09-05
安徽梦谷纤维材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also some problems in the application and promotion of facing mortar: easy to efflorescence, easy to appear color difference and stubble, poor self-cleaning ability
[0004] Chinese patent CN102432238A proposes a low-cement anti-efflorescence finishing mortar, which solves the efflorescence phenomenon that is prone to occur in the finishing mortar due to the small amount of cement added, but in the actual application process, it is found that this kind of finishing mortar The wall hanging property is poor, the processing performance is poor, and the bonding force with the outer wall is poor. In the process of use, there are also more serious cracking phenomena.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] An anti-efflorescence facing mortar, made of the following components by weight: 50 parts of mixed sand, 5 parts of cement, 10 parts of coal gangue, 9 parts of basalt fiber, 3 parts of polyvinyl alcohol powder, dipotassium sebacate 0.2 parts of salt, 0.1 parts of ethylene dioleamide, 0.2 parts of water-repellent agent, and 0.04 parts of air-entraining agent, wherein the mixed sand is made of the following components by weight: 60 parts of natural mountain sand, 6 parts of glass sand, sea 10 parts of foam stone and 12 parts of nacre sand. Before using the coal gangue, soak it in a hydrochloric acid solution with a volume fraction of 0.1% for 15 minutes, then take it out, dry it in the sun, and crush it to 30 mesh.

[0017] Specifically, the cement is composed of white cement and cooked cement in a weight ratio of 1:2.

[0018] Specifically, the average particle size of the polyvinyl alcohol powder is 80 mesh, and the average particle size of the dipotassium sebacate is 1...

Embodiment 2

[0022] An anti-efflorescence facing mortar, made of the following components by weight: 55 parts of mixed sand, 6 parts of cement, 13 parts of coal gangue, 11 parts of basalt fiber, 3 parts of polyvinyl alcohol powder, dipotassium sebacate 0.3 parts of salt, 0.2 parts of ethylene dioleamide, 0.3 parts of water repellent, and 0.05 parts of air-entraining agent, wherein the mixed sand is made of the following components by weight: 65 parts of natural mountain sand, 8 parts of glass sand, sea 13 parts of foam stone and 13 parts of nacre sand. Before using the coal gangue, soak it in a hydrochloric acid solution with a volume fraction of 0.2% for 17 minutes, then take it out, dry it in the sun, and crush it to 35 mesh.

[0023] Specifically, the cement is composed of white cement and cooked cement in a weight ratio of 1:2.

[0024] Specifically, the average particle size of the polyvinyl alcohol powder is 90 mesh, and the average particle size of the dipotassium sebacate is 110 me...

Embodiment 3

[0028] An anti-efflorescence facing mortar, made of the following components in parts by weight: 60 parts of mixed sand, 7 parts of cement, 15 parts of coal gangue, 13 parts of basalt fiber, 4 parts of polyvinyl alcohol powder, dipotassium sebacate 0.4 parts of salt, 0.3 parts of ethylene dioleamide, 0.5 parts of water-repellent agent, and 0.06 parts of air-entraining agent, wherein the mixed sand is made of the following components by weight: 70 parts of natural mountain sand, 9 parts of glass sand, sea 15 parts of foam stone and 14 parts of nacre sand. Before using the coal gangue, soak it in a hydrochloric acid solution with a volume fraction of 0.3% for 20 minutes, then take it out, dry it in the sun, and crush it to 40 mesh.

[0029] Specifically, the cement is composed of white cement and cooked cement in a weight ratio of 1:3.

[0030] Specifically, the average particle size of the polyvinyl alcohol powder is 100 mesh, and the average particle size of the dipotassium se...

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Abstract

The invention discloses alkali efforescence resistant decorative plaster which is prepared from the following components in parts by weight: 50-60 parts of mixed sand, 5-7 parts of cement, 10-15 parts of coal gangue, 9-13 parts of basalt fibers, 3-4 parts of polyvinyl alcohol powder, 0.2-0.4 part of dipotassium sebacate, 0.1-0.3 part of N, N'-ethylenebisoleamide, 0.2-0.5 part of a water repellent and 0.04-0.06 part of an air entraining agent. The alkali efforescence resistant decorative plaster prepared according to the invention is excellent in alkali efforescence resistance, excellent in wall built-up property, excellent in processability and high in adhesive property with the wall, and is difficult to drop and fall and high in flexural and compressive strength in the using process. Moreover, the cheap coal gangue serves as one part of the raw materials, so that the production cost is reduced, and the problem that the environment is polluted by lots of coal gangue is solved.

Description

technical field [0001] The invention belongs to the field of preparation of facing mortar, and in particular relates to an anti-pantherine facing mortar. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Including the excavation gangue during the roadway excavation, the gangue extracted from the roof, floor and interlayer during the mining process, and the gangue picked out during the coal washing process. Its main components are Al2O3 and SiO2, and it also contains varying amounts of Fe2O3, CaO, MgO, Na2O, K2O, P2O5, SO3 and trace rare elements. Coal gangue is discarded, occupying a large area of ​​land. The escape or leaching of sulfide in coal gangue will pollute the atmosphere, farmland and water bodies. Gangue hills can also spontaneously ignite and cause f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/20
CPCC04B28/04C04B2111/2023C04B14/06C04B18/12C04B14/4643C04B24/2623C04B24/04C04B24/121C04B2103/65C04B2103/304
Inventor 钱立兵王森李宁
Owner 安徽梦谷纤维材料科技有限公司
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