Saltpetering and whitening resistant outer wall decorating mortar

A technology for exterior wall decoration and anti-efflorescence, applied in the field of mortar, can solve the problems of difficulty in guaranteeing the construction quality and decorative effect of mortar, being sensitive to temperature and humidity, and short in operation time, so as to improve the effect of anti-efflorescence and inhibit whitening. Pan-alkali whitening, good effect

Active Publication Date: 2013-10-23
湖南交泰建材有限公司
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Problems solved by technology

[0004] There are many researches on the problem of efflorescence and whitening on the surface of inorganic decorative mortar, but there are still the following problems: it is very sensitive to the temperature and humidity of the construction environment, an

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  • Saltpetering and whitening resistant outer wall decorating mortar
  • Saltpetering and whitening resistant outer wall decorating mortar

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Embodiment Construction

[0039]See Table 1 for the composition of raw materials and the amount of mixing water used for the exterior wall decorative mortar of each embodiment. The mineral powder in the embodiment is S105 grade; the cellulose ether is selected from hydroxypropyl methylcellulose (MHPC); the latex powder is selected from vinyl acetate-ethylene copolymer (VAE); the air-entraining agent is selected from triterpene saponins; the hydrophobic agent is selected from Fluorosilicone hydrophobic agent (emulsion type, solid content 8%); acrylic emulsion solid content 40%; colored powder pigments are iron oxide pigments; mixing water is tap water.

[0040] The anti-efflorescence whitening exterior wall decorative mortar in the embodiment is mixed and used according to the following method: Portland cement, quartz sand, silica fume, mineral powder, gypsum, iron oxide pigment, cellulose ether , latex powder and air-entraining agent are premixed evenly to form a dry mortar powder; add hydrophobic agen...

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Abstract

The invention discloses saltpetering and whitening resistant outer wall decorating mortar. The saltpetering and whitening resistant outer wall decorating mortar comprises the following components in parts by weight: 100 parts of Portland cement, 300-370 parts of sand, 4-10 parts of silica fume and 15-30 parts of acrylic emulsion. When the saltpetering and whitening resistant outer wall decorating mortar is used, the Portland cement, the sand and the silica fume are uniformly premixed in proportions to form dry mortar powder, 70-100 parts of mixing water is uniformly mixed with an acrylic emulsion to form a diluted emulsion, the dry mortar powder is added to the diluted emulsion, and the mixture is uniformly stirred to form the saltpetering and whitening resistant outer wall decorating mortar for application. The saltpetering and whitening resistant outer wall decorating mortar has the advantages that the saltpetering and the whitening can be inhibited at high efficiency, the effect of inhibiting the saltpetering and the whitening is prominent in humid and low-temperature environments, and the sensitivity of the construction quality of the building decorating mortar to the temperature and the humidity is greatly reduced.

Description

technical field [0001] The invention relates to a kind of mortar, in particular to a kind of mortar for exterior wall decoration without efflorescence phenomenon during use. Background technique [0002] Inorganic decorative mortar is a new type of environmentally friendly decorative material, which is composed of inorganic cementitious materials (cement), inorganic fillers, sand and additives. However, the traditional cement-based decorative mortar has strict requirements on the construction environment, because in high humidity environment (rain and fog weather RH>80%) and low temperature weather (temperature below 15 o C), the surface of the mortar is very prone to efflorescence and whitening, which affects the appearance and decorative effect of the mortar surface. In order to prevent the whitening of efflorescence, the construction of exterior wall mortar finishes must be carried out under continuous dry weather conditions. The construction season and climatic cond...

Claims

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Application Information

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IPC IPC(8): C04B28/04
Inventor 韩燕杨建西赵筠林国勇
Owner 湖南交泰建材有限公司
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