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Acid-rain-resistant mortar for exterior wall base material processing

An acid rain-resistant, exterior wall technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems affecting the appearance of buildings, accelerated corrosion and aging of buildings, and damage to building structures. Prevents moisture and rain penetration, improves chemical resistance, and prevents cracking

Active Publication Date: 2011-09-07
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of acid rain will lead to accelerated corrosion and aging of buildings and vehicles abandoned in the open air, causing huge economic losses
[0003] Existing building exterior wall base material treatment mortar contains a large amount of alkaline substances such as calcium carbonate, which has no good resistance and mitigation effect on the corrosion of acid rain, so it reacts with acid rain, resulting in accelerated corrosion and aging of buildings , causing huge economic losses
On the other hand, the temperature resistance is not good, especially at low temperature, it is easy to crack, which affects the appearance of the building, and may cause structural damage to the building, affecting safety

Method used

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  • Acid-rain-resistant mortar for exterior wall base material processing
  • Acid-rain-resistant mortar for exterior wall base material processing
  • Acid-rain-resistant mortar for exterior wall base material processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] According to 100 parts by weight, put A900 high-alumina cement produced by Zhengzhou Great Wall Special Cement Co., Ltd. into the mortar mixer in turn: 30.0 parts, TH-701 redispersible latex powder produced by Langfang Tsinghua Hi-Tech Energy-saving Technology Development Center: 10.0 parts, Hydroxypropyl methylcellulose produced by Shanghai Huiguang Building Materials Co., Ltd.: 8.0 parts, wood fiber produced by Beijing Zhongchuang Tongsheng Technology Co., Ltd.: 3.0 parts, filler ultrafine quartz sand: 19.0 parts, filler talcum powder: 30.0 parts , Stir for 35 minutes, take samples for quality inspection, and pack after passing the test.

Embodiment 2

[0024] According to 100 parts by weight, the A700 high-alumina cement produced by Zhengzhou Great Wall Special Cement Co., Ltd. was dropped into the mortar mixer successively: 25.0 parts, the VINAVIL E06PA redispersible latex powder produced by Jinan Anshunda New Building Materials Co., Ltd.: 12.0 parts, Hydroxypropyl methylcellulose produced by Jinan Anshunda New Building Materials Co., Ltd.: 10.0 parts, wood fiber produced by Jinan Anshunda New Building Materials Co., Ltd.: 5.0 parts, filler ultrafine barium sulfate: 12 parts, filler talcum powder: 36 parts, stirred for 35 minutes, sampled for quality inspection, and packaged after passing the test.

Embodiment 3

[0026] According to 100 parts by weight, A600 high-alumina cement produced by Zhengzhou Great Wall Special Cement Co., Ltd.: 35.0 parts, VAE redispersible latex powder produced by Shanghai Huiguang Building Materials Co., Ltd.: 10.0 parts, Shanghai Huiguang were put into the mortar mixer in turn. Hydroxypropyl methylcellulose produced by Building Materials Co., Ltd.: 8.0 parts, wood fiber produced by Anhui Shuanglong Wood Fiber Co., Ltd.: 5.0 parts, filler ultrafine barium sulfate: 22 parts, filler talcum powder: 20 parts, stir for 35 minutes , Quality inspection sampling inspection, packaging after passing the test.

[0027] Concrete performance of the present invention is as table 1:

[0028] Table 1

[0029]

[0030]

[0031] It can be known from Table 1 that the coating film physical property test data of the present invention complies with the JG / T 157-2009 (P type) standard.

[0032] The performance comparison between the present invention and common exterior wal...

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Abstract

The invention discloses an acid-rain-resistant mortar for exterior wall base material processing, which comprises the following components in percentage by weight: 25.0-35.0% of high alumina cement, 5.0-12.0% of redispersible emulsion powder, 5.0-10.0% of hydroxypropyl methylcellulose, 0.5-5.0% of lignin fiber for construction and 45.0-75.0% of filler. The mortar disclosed by the invention can reduce the damage to exterior walls of buildings caused by acid rain in the natural environment, cracking of exterior wall finishes and other factors, has good universality, and is applicable to the closed protection of exterior wall base materials of concrete buildings in regions having different climates. Besides, the mortar can form favorable adhesive force between different base materials and different aqueous exterior wall finishes, has the advantages of high acid rain corrosion resistance, low pulverization possibility, low cracking possibility and excellent waterproofing performance, and can avoid the bubbling, spalling and other defects of the exterior wall finishes, thereby protecting the exterior wall surfaces of buildings from corrosion and damage of acid rain.

Description

technical field [0001] The invention relates to a mortar material for construction, in particular to an acid rain-resistant exterior wall base material treatment mortar. Background technique [0002] With the development of global industrialization, the carbon dioxide, nitrogen dioxide and other substances in the atmosphere continue to increase, resulting in the continuous increase of acidity in rainwater, forming acid rain. Acid rain refers to atmospheric precipitation such as rain, freezing rain, snow, hail, and dew with a pH value between 4.3 and 5.6. Carbon dioxide and nitrogen dioxide in the atmosphere are the main substances that form acid rain. Among the components of acid rain, sulfuric acid accounts for 60%, nitric acid accounts for 32%, hydrochloric acid accounts for 6%, and the rest is carbonic acid and a small amount of organic acids. This acid rain will cause accelerated corrosion and aging of buildings and vehicles abandoned in the open air, causing huge econo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B111/23
CPCC04B28/06Y02W30/91C04B14/042C04B14/06C04B14/20C04B14/368C04B18/24C04B20/0092C04B24/383C04B2103/0057
Inventor 周伟建谭俊峰李君荣李淑燕李腾飞梁振霖郭全坚李光强莫勇华符传杰
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO