Aerated concrete dry-blended plastering mortar and preparing method thereof

A technology for air-entrained concrete and plastering mortar, applied in the field of plastering mortar, can solve the problems of low shrinkage, hollowing, cracking, etc., and achieve the effects of low shrinkage, simple process steps and broad application prospects

Active Publication Date: 2014-11-12
WENZHOU INNOVATION NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of cracking, hollowing and even falling off when the dry-mixed plastering mortar in the prior art is used for plastering the aerated concrete wal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] A dry-mixed aerated concrete plastering mortar, which is composed of the following components by mass percentage: 22% Portland cement, 15% fly ash, 7% slag powder, 0.4% starch ether, 2% diatomaceous earth , 4% sodium alginate, 0.4% hydroxypropyl methyl cellulose ether, 0.6% VAE redispersible latex powder, 0.08% polypropylene fiber, 7% performance improver, the balance is construction fine sand, slag powder in mortar The particle size is 5μm, the fineness modulus of construction sand is 1.5, the equivalent diameter of polypropylene fiber is 12μm, and the length is 10mm. The performance modifier is composed of the following mass percentage components: 2% tea saponin, 0.6% Konjac flour, 6% graphene, 12% vermiculite powder, 7% sodium gluconate, the balance is glutinous rice flour, and the particle size of vermiculite powder is 1.2mm.

[0023] The preparation method of the aerated concrete dry-mix plaster mortar is as follows:

[0024] (1) After weighing tea sa...

Example Embodiment

[0026] Example 2

[0027] A dry-mixed aerated concrete plastering mortar, consisting of the following components by mass percentage: 20% Portland cement, 10% fly ash, 5% slag powder, 0.3% starch ether, 1% diatomaceous earth , 3% sodium alginate, 0.3% hydroxypropyl methyl cellulose ether, 0.5% VAE redispersible latex powder, 0.05% polypropylene fiber, 5% performance modifier, the balance is construction fine sand, slag powder in mortar The particle size is 3μm, the fineness modulus of construction sand is 1, the polypropylene fiber equivalent diameter is 10μm, and the length is 8mm. The performance modifier is composed of the following components by mass percentage: 1% tea saponin, 0.5% Konjac flour, 5% graphene, 10% vermiculite powder, 5% sodium gluconate, the balance is glutinous rice flour, and the vermiculite powder has a particle size of 1mm.

[0028] The preparation method of the aerated concrete dry-mix plaster mortar is as follows:

[0029] (1) After weighing tea saponin, ko...

Example Embodiment

[0031] Example 3

[0032] A dry-mixed aerated concrete plaster mortar, composed of the following components by mass percentage: 30% Portland cement, 20% fly ash, 10% slag powder, 0.5% starch ether, 3% diatomaceous earth , 5% sodium alginate, 0.5% hydroxypropyl methyl cellulose ether, 1% VAE redispersible latex powder, 0.1% polypropylene fiber, 10% performance modifier, the balance is construction fine sand, slag powder in mortar The particle size is 10μm, the fineness modulus of construction sand is 2, the equivalent diameter of polypropylene fiber is 30μm, and the length is 12mm. The performance modifier is composed of the following mass percentage components: 3% tea saponin, 1% Konjac flour, 10% graphene, 20% vermiculite powder, 10% sodium gluconate, the balance is glutinous rice flour, and the particle size of vermiculite powder is 1.5mm.

[0033] The preparation method of the aerated concrete dry-mix plaster mortar is as follows:

[0034] (1) After weighing tea saponin, konjac ...

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PUM

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Abstract

The invention discloses aerated concrete dry-blended plastering mortar which is composed of, by mass, 20%-30% of portland cement, 10%-20% of coal ash, 5%-10% of slag powder, 0.3%-0.5% of starch ether, 1%-3% of kieselguhr, 3%-5% of sodium alginate, 0.3%-0.5% of hydroxypropyl methyl cellulose ether, 0.5%-1% of VAE redispersible powder, 0.05%-0.1% of polypropylene fiber, 5%-10% of performance modifier and the balance building fine sand, wherein the performance modifier is composed of, by mass, 1%-3% of tea saponin, 0.5%-1% of konjaku flour, 5%-10% of graphene, 10%-20% of vermiculite powder, 5%-10% of sodium gluconate and the balance glutinous rice flour. The aerated concrete dry-blended plastering mortar is scientific and reasonable in formula, low in cost, good in workability, water-retaining property, crack resistance and caking property, low in shrinking percentage and broad in application prospect. The invention further provides a method for preparing the aerated concrete dry-blended plastering mortar. According to the method, the number of processing steps is small and operability is high. The method is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a plastering mortar, in particular to an aerated concrete dry-mixed plastering mortar and a preparation method thereof. Background technique [0002] Air-entrained concrete has the characteristics of light weight, good thermal insulation, and energy saving. It is a new type of wall material encouraged by the state. However, air-entrained concrete has a closed-cell micro-porous structure, long water absorption duration, poor bonding performance with mortar, and hollowing and cracking of the plaster layer are very common, which has become a common quality problem in plastering projects in my country. Therefore, it is the key to improve and improve the quality of air-entrained concrete wall engineering to greatly improve the water retention, construction, cohesiveness and crack resistance of air-entrained concrete plastering mortar. To bring the development of mortar into the track of sustainable development, it is necessary to c...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/30C04B24/38C04B16/06
CPCY02W30/91
Inventor 俞权锋
Owner WENZHOU INNOVATION NEW MATERIAL CO LTD
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