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Fireproof dry-mixed mortar for exterior wall

A dry powder mortar and exterior wall technology, applied in the field of building materials, can solve the problems of poor high temperature resistance of polystyrene boards, rising overall project costs, unsatisfactory fire protection effects, etc., and achieves environmental protection requirements, economical and practical materials, and good adhesion. force effect

Inactive Publication Date: 2015-04-22
DEQING YANGTAI BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high temperature resistance effect of polystyrene board is extremely poor, and the fire prevention effect is not ideal. It once caused fires in Shanghai, Shenyang and other places, and the country forcibly banned the use of polystyrene board.
The inorganic vitrified bead insulation mortar is relatively safe because it is composed of non-combustible inorganic materials, but its high cost will lead to an increase in the overall cost of the project

Method used

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  • Fireproof dry-mixed mortar for exterior wall
  • Fireproof dry-mixed mortar for exterior wall
  • Fireproof dry-mixed mortar for exterior wall

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A dry powder mortar for a fireproof exterior wall, consisting of the following components by weight percentage:

[0033]

[0034]

[0035] Described portland cement is 42.5R cement;

[0036] The particle size of the quartz sand is 200 mesh;

[0037] The yellow sand is river sand with a mud content of 1% and a density of 2500kg / m 3 ;

[0038] The particle diameter of described gangue powder is 600 mesh;

[0039] Described bentonite is organic bentonite;

[0040] Described redispersible latex powder is the rubber powder that polyvinyl acetate and polyvinyl alcohol generate through copolymerization reaction;

[0041] The cellulose ether is methyl hydroxyethyl cellulose ether;

[0042] The particle diameter of described fused magnesia fine powder is 600 orders;

[0043] The particle diameter of described sepiolite powder is 200 orders;

[0044] The used raw material of embodiment 2-6 is identical with embodiment 1, and the proportioning ratio of each raw materi...

Embodiment 7

[0052] A dry powder mortar for a fireproof exterior wall, consisting of the following components by weight percentage:

[0053]

[0054]

[0055] Described portland cement is 32.5R cement;

[0056] The particle size of the quartz sand is 200 mesh;

[0057] The yellow sand is river sand with a mud content of 1% and a density of 2500kg / m 3 ;

[0058] The particle diameter of described gangue powder is 600 mesh;

[0059] Described bentonite is organic bentonite;

[0060] Described redispersible latex powder is the rubber powder that polyvinyl acetate and polyvinyl alcohol generate through copolymerization reaction;

[0061] The cellulose ether is methyl hydroxypropyl cellulose ether;

[0062] The particle diameter of described fused magnesia fine powder is 600 orders;

[0063] The particle diameter of described sepiolite powder is 200 orders;

[0064] The used raw material of embodiment 8-12 is identical with embodiment 7, and the proportioning ratio of each raw materi...

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Abstract

The invention discloses fireproof dry-mixed mortar for an exterior wall. The fireproof dry-mixed mortar is composed of the following components in percentage by weight: portland cement, quartz sand, filler, bentonite, redispersible latex powder, cellulose ether, citric acid, fine fused magnesite powder and sepiolite powder. The fireproof dry-mixed mortar has a favorable adhesive force with a fundamental plane, and materials are economic and practical, so that the cost can be reduced; meanwhile, a base layer treated by using the material cannot bulge and flake, so that a construction site can be kept clean, and the requirement for environment friendliness can be better met; and part of yellow sand is replaced with gangue, so that the pollution can be relieved, the cost can be reduced, and the fireproof effect can also be achieved.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a dry powder mortar for fireproof exterior walls and a preparation method thereof. Background technique [0002] With the rapid development of the construction industry, the requirements for the quality of the construction industry are getting higher and higher. Due to the influence of the technical proficiency of the construction workers and various raw materials such as cement and sand, the mortar configured on the construction site, whether it is masonry mortar, plastering mortar or ground leveling mortar, often cracks in the plastering mortar of buildings (even if It is the most traditional clay wall brick that will crack in a large area when it is plastered with cement mortar), resulting in unstable project quality, less than the required strength, and even poor quality, which has become a common problem in construction quality. In addition, with the improvemen...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/06C04B111/28
Inventor 林德
Owner DEQING YANGTAI BUILDING MATERIAL
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