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A kind of building dry-mixed plastering mortar and preparation method thereof

A plastering mortar and construction technology, applied in the field of plastering mortar, can solve the problems affecting the normal setting and hardening of the mortar, cracking on the surface of the wall plastering layer, and poor waterproof performance of dry powder mortar, and achieves good uniformity and preservation. The effect of good construction performance and broad market application prospects

Active Publication Date: 2016-01-20
WENZHOU INNOVATION NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the dry powder mortar are: (1) the dry powder mortar has poor waterproof performance and is not suitable for use on exterior walls; Normal coagulation and hardening of the mortar; (3) The coagulation time of the mortar is short, which cannot meet the requirements of a longer construction time; (4) The thermal conductivity of the mortar is poor, and the temperature stress will be caused by the inconsistency of the internal and external temperatures during the hardening process. Cause large-area cracking and peeling off of the surface of the plaster layer on the wall

Method used

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  • A kind of building dry-mixed plastering mortar and preparation method thereof

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Embodiment 1

[0021] A construction dry-mixed plastering mortar, which is composed of the following components in mass percentage: 22% Portland cement, 3% desulfurized gypsum powder, 2% sodium bentonite, 0.08% polypropylene fiber, 15% fly ash , 0.4% hydroxypropyl methyl cellulose ether, 0.6% VAE redispersible latex powder, 8% performance improver, the balance is construction fine sand, polypropylene fiber equivalent diameter is 20μm, length is 10mm, among which, performance improvement The agent is composed of the following components in mass percentage: 15% vermiculite powder, 26% metakaolin, 7% graphene, 7% sodium gluconate, the balance is glutinous rice flour, and the particle size of the vermiculite powder is 1.2mm.

[0022] The preparation method of the building dry-mixed plastering mortar is as follows:

[0023] (1) After taking vermiculite powder, metakaolin, graphene, sodium gluconate and glutinous rice flour by proportioning, add ethanol after graphene and vermiculite powder are mi...

Embodiment 2

[0026] A construction dry-mixed plastering mortar, which is composed of the following components in mass percentage: 20% Portland cement, 2% desulfurized gypsum powder, 1% sodium bentonite, 0.05% polypropylene fiber, 10% fly ash , 0.3% hydroxypropyl methyl cellulose ether, 0.5% VAE redispersible latex powder, 5% performance improver, the balance is construction fine sand, the equivalent diameter of polypropylene fiber is 10μm, and the length is 8mm, among which, performance improvement The agent is composed of the following components in mass percentage: 10% vermiculite powder, 20% metakaolin, 5% graphene, 5% sodium gluconate, the balance is glutinous rice flour, and the particle size of the vermiculite powder is 1mm.

[0027] The preparation method of the building dry-mixed plastering mortar is as follows:

[0028] (1) After taking vermiculite powder, metakaolin, graphene, sodium gluconate and glutinous rice flour by proportioning, add ethanol after graphene and vermiculite p...

Embodiment 3

[0031] A construction dry-mixed plastering mortar, which is composed of the following components in mass percentage: 30% Portland cement, 5% desulfurized gypsum powder, 3% sodium bentonite, 0.1% polypropylene fiber, 20% fly ash , 0.5% hydroxypropyl methyl cellulose ether, 0.7% VAE redispersible latex powder, 10% performance improver, the balance is construction fine sand, polypropylene fiber equivalent diameter is 30μm, length is 12mm, among which, performance improvement The agent is composed of the following components in mass percentage: 20% vermiculite powder, 30% metakaolin, 10% graphene, 10% sodium gluconate, the balance is glutinous rice flour, and the particle size of the vermiculite powder is 1.5mm.

[0032] The preparation method of the building dry-mixed plastering mortar is as follows:

[0033] (1) After taking vermiculite powder, metakaolin, graphene, sodium gluconate and glutinous rice flour by proportioning, add ethanol after graphene and vermiculite powder are ...

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Abstract

The invention discloses an architectural dry-mixing plastering mortar which is composed of the following components in percentage by mass: 20-30% of Portland cement, 2-5% of desulfurized gypsum powder, 1-3% of sodium bentonite, 0.05-0.1% of polypropylene fiber, 10-20% of fly ash, 0.3-0.5% of hydroxypropyl methylcellulose ether, 0.5-0.7% of VAE (vinyl acetate-ethylene) redispersible latex powder, 5-10% of performance improver and the balance of architectural fine sand. The performance improver is composed of the following components in percentage by mass: 10-20% of vermiculite powder, 20-30% of metakaolin, 5-10% of graphene, 5-10% of sodium gluconate and the balance of glutinous rice flour. The architectural dry-mixing plastering mortar has the advantages of scientific and reasonable formula, low cost, high binding strength, favorable water retentivity, favorable cracking resistance and favorable workability. The invention also discloses a preparation method of the architectural dry-mixing plastering mortar, which has the advantages of simple steps and high operability. The obtained architectural dry-mixing plastering mortar has favorable uniformity and storability.

Description

technical field [0001] The invention relates to a plastering mortar, in particular to a building dry-mixed plastering mortar and a preparation method thereof. Background technique [0002] With the continuous advancement of the reform of building wall materials in my country, a large number of new wall materials have been widely used, and a wall material structure system dominated by wall blocks has been formed. The wall block has strong water absorption and large shrinkage, and the mixing water in the mortar is quickly absorbed by the wall material, while the traditional plastering mortar has poor construction performance, water retention, low bonding strength, cracking, and powder loss. And other problems will seriously affect the quality of the building, so the traditional plastering mortar can no longer meet the existing wall plastering construction requirements. [0003] For example, the application publication number CN103664091A, the Chinese patent application public...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 汪一新周晓芬曹祥彬陈玲媚陈亮
Owner WENZHOU INNOVATION NEW MATERIAL CO LTD