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Masonry plastering anticracking agent

An anti-cracking agent and masonry technology, which is applied in the field of mortar admixture, can solve problems such as frequent engineering quality problems, research and development lag, and failure, so as to improve the quality of construction projects, solve matching problems, and simplify the mortar ratio Effect

Active Publication Date: 2013-10-09
俞锡贤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research and development of admixtures for this type of functional mortar is relatively lagging behind. At present, there is no functional admixture specifically for this type of mortar on the market, resulting in uneven quality of such mortar products produced and applied in various places. Frequent engineering quality problems
Due to the lack of good matching mortar products, the promotion of various new wall materials has also encountered many obstacles. In some places, the promotion and application of new wall materials is facing the severe situation of suspension and failure.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1, a kind of masonry plastering anti-cracking agent, it is made up of the composition of following weight content:

[0031] Active silica 2.5%, redispersible latex powder (Vac / E) 5%, inorganic gel 7.5%, sodium bentonite 20%, UF type urea-formaldehyde resin 5%, sodium dodecylbenzenesulfonate 2.5%, 17.5% naphthalene superplasticizer, 2.5% sodium lauryl sulfate, 15% methyl cellulose, 2% anhydrous sodium pyrophosphate, 20% silica fume (5000 mesh fineness), 5-6mm long poly Acrylic fiber 0.5%.

[0032] Put various raw materials into a coulter-type gravity-free mixer, stir and mix evenly until there is no agglomeration or agglomeration, and then the masonry plastering anti-cracking agent is obtained.

Embodiment 2

[0033] Embodiment 2, a kind of masonry plaster anti-cracking agent, it is made up of the composition of following weight content:

[0034] Active silica 2.2%, redispersible latex powder (Vac / E) 5.5%, inorganic gel 7%, sodium bentonite 21%, UF type urea-formaldehyde resin 4.5%, sodium dodecylbenzene sulfonate 2.8%, 18% naphthalene superplasticizer, 2.8% sodium lauryl sulfate, 14.5% methyl cellulose, 1.7% anhydrous sodium pyrophosphate, 19.4% silica fume (5000 mesh fineness), 5-6mm long poly Acrylic fiber 0.6%.

[0035] The preparation method is identical to Example 1.

Embodiment 3

[0036] Embodiment 3, a kind of masonry plaster anti-cracking agent, it is made up of the composition of following weight content:

[0037] Active silica 2.8%, redispersible latex powder (Vac / E) 4.5%, inorganic gel 7.9%, sodium bentonite 19%, UF type urea-formaldehyde resin 5.5%, sodium dodecylbenzenesulfonate 2.2%, Naphthalene superplasticizer 17%, sodium lauryl sulfate 2.2%, methyl cellulose 15.4%, anhydrous sodium pyrophosphate 2.3%, silica fume (5000 mesh fineness) 20.8%, length 5-6mm Acrylic fiber 0.4%.

[0038] The preparation method is identical to Example 1.

[0039] In order to verify the performance of the anti-cracking agent for masonry plastering of the present invention, the inventor has done an applicability test on the anti-cracking agent for masonry plastering (taking the proportion of M5.0 cement-based plastering mortar as an example), the results are as follows:

[0040] 1. Raw materials and admixtures for testing

[0041] 1. Cement: Nanfang brand 32.5 ordi...

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Abstract

The invention relates to a mortar admixture, particularly a masonry plastering anticracking agent. The masonry plastering anticracking agent is composed of the following components in percentage by weight: 2.2-2.8% of reactive silica, 4.5-5.5% of redispersible latex powder, 7.0-8.0% of inorganic gel, 19-21% of sodium bentonite, 4.5-5.5% of urea-formaldehyde resin, 2.2-2.8% of sodium dodecyl benzene sulfonate, 17.0-18.0% of naphthalene high efficiency water reducing agent, 2.2-2.8% of sodium lauryl sulfate, 14.5-15.5% of methyl cellulose, 1.7-2.3% of sodium pyrophosphate, 19-21% of silica fume and 0.4-0.6% of polypropylene fiber with the length of 5-6 mm. After adding the masonry plastering anticracking agent, the mortar has excellent compression strength, freezing resistance and shrinkage resistance.

Description

technical field [0001] The invention relates to a mortar admixture, in particular to a masonry plastering anti-cracking agent. Background technique [0002] Construction mortar is a very broad concept. According to its basic functions, it can be divided into two categories: ordinary mortar and special mortar. [0003] Ordinary mortar refers to cement-based, gypsum-based, and lime-based mortars used for wall brick masonry, wall plastering, and ground leveling, and is mostly composed of rigid materials with high elastic modulus. [0004] Special mortar refers to cement-based and gypsum-based mortar used for special purposes such as heat insulation, waterproof and anti-seepage, decorative repair, etc., mostly made of rigid cementitious materials with high elastic modulus and organic and inorganic polymers with low elastic modulus Composition of polymer flexible gelling material. [0005] With the vigorous implementation of my country's energy-saving and emission reduction in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/28
Inventor 俞锡贤
Owner 俞锡贤
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