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Anti-efflorescence joint sealing mortar

An anti-efflorescence and mortar technology, which is applied in the field of construction mortar, can solve the problems that the caulking mortar cannot be eliminated and affects the appearance of buildings, and achieve the effect of enhancing hydrophobic function, inhibiting efflorescence, and reducing porosity

Active Publication Date: 2012-05-02
奥捷科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of caulking mortar improves the hydrophobic function of the mortar to a certain extent, it still cannot eliminate the efflorescence phenomenon of the caulking mortar.
On the exterior walls of many buildings, white spots appear locally during the use of mortar or after rainy days, which especially affects the appearance of the building

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] An anti-efflorescence type joint filling mortar, its components and parts by weight are: PO42.5 ordinary portland cement 210kg, CA60 high alumina cement 25kg, when cement and high alumina cement are used in combination, the mixing ratio is 6 : 1, natural sand 440kg, silica fume 40kg, class I fly ash 180kg, bentonite 3kg, redispersible milk redispersible latex powder 2kg, cellulose ether 1kg, wood fiber 2kg, citric acid 0.2kg, zinc stearate 3kg. After mixing the above raw materials, add water and stir evenly.

Embodiment 2

[0011] An anti-efflorescence type joint filling mortar, its components and parts by weight are: PO42.5 ordinary portland cement 250kg, CA60 high alumina cement 35kg, sand 540kg, silica fume 60kg, class II fly ash 220kg, Bentonite 8kg, redispersible latex powder 4kg, cellulose ether 1.5kg, wood fiber 3kg, citric acid 0.6kg, calcium stearate 5kg. After mixing the above raw materials, add water and stir evenly.

Embodiment 3

[0013] An anti-efflorescence type joint filling mortar, its components and parts by weight are: PO42.5 ordinary portland cement 235kg, CA60 high alumina cement 30kg, sand 500kg, silica fume 50kg, class I fly ash 200kg, Bentonite 5kg, redispersible latex powder 3kg, cellulose ether 1.25kg, wood fiber 2.5kg, citric acid 0.4kg, zinc stearate 4kg. After mixing the above raw materials, add water and stir evenly.

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Abstract

The invention relates to an anti-efflorescence joint sealing mortar. The motor comprises, by weight, 210-250 parts of ordinary Portland cement, 25-35 parts of high alumina cement, 440-540 parts of sand, 40-60 parts of silica fume, 180-220 parts of coal ash, 3-8 parts of bentonite, 2-4 parts of redispersable latex powder, 1-1.5 parts of cellulose ether, 2-3 parts of a wood fiber, 0.2-0.6 parts of citric acid, and 3-5 parts of a stearate. The anti-efflorescence joint sealing mortar provided in the invention allows the ordinary Portland cement and the high alumina cement to be mixed according to a ratio of 6:1-10:1 through a compound technology, so factors causing the mortar efflorescence are fundamentally eliminated, the compactness of the mortar is improved, the mortar aperture number is reduced, and no efflorescence phenomenon appearance in the use process of the mortar is guaranteed.

Description

technical field [0001] The invention relates to a building mortar, in particular to a pan-alkali-resistant joint-filling mortar that does not produce pan-alkaline phenomenon during use. Background technique [0002] In my country's building exterior wall finish system, most of them use face brick finish. At present, most of the brick joint-filling mortars used in the facing of bricks are mixed with a small amount of additives such as cement, sand, and water repellent, and then mixed with water to be used for brick joint filling. Although this type of caulking mortar improves the hydrophobic function of the mortar to a certain extent, it still cannot eliminate the efflorescence phenomenon of the caulking mortar. On the exterior walls of many buildings, white spots appear locally during the use of mortar or after rainy days, which especially affects the appearance of the building. Pan-alkali is a difficult problem for all ordinary cement-based products, mainly because of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B24/08
Inventor 张志峰周强詹克志
Owner 奥捷科技股份有限公司
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