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Dry powder mortar system of building external insulation polystyrene insulation board

A technology of polystyrene and external thermal insulation, applied in the field of building materials, can solve the problems of high bonding strength, low thermal conductivity, small drying shrinkage deformation, etc., and achieve the effect of high bonding strength and low thermal conductivity

Inactive Publication Date: 2006-08-23
刘永屏
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AI Technical Summary

Problems solved by technology

[0004] The invention overcomes the defects of the two-component system dry powder mortar and the existing common dry powder mortar, and provides a high bonding strength, compression resistance, low thermal conductivity, small drying shrinkage deformation, and good workability, water retention, and construction. Effective and transportable dry mix mortar system

Method used

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Embodiment Construction

[0008] 1. The adhesive layer formula of the polystyrene insulation board used for building external insulation is (percentage by weight): 35 parts of ordinary Portland cement, 18 parts of fly ash, 42 parts of 40-80 mesh quartz sand, which can be redispersed and polymerized 4 parts of rubber powder, 0.5 parts of water retaining agent, and 0.5 parts of compound admixture. Finally, mix the dry powder mixture with 20 parts of water and stir evenly to obtain a polystyrene insulation board adhesive with excellent workability and water retention. Prevent polystyrene insulation board hollowing, cracking, falling off and so on.

[0009] 2. The anti-cracking layer formula of the polystyrene insulation board used for building external insulation is (percentage by weight): 33 parts of ordinary Portland cement, 23 parts of fly ash, 37 parts of 80-120 mesh river sand, which can be redispersed and polymerized 3.5 parts of rubber powder, 0.5 part of water retaining agent, 0.5 part of compoun...

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Abstract

The present invention provides a dry powder mortar system for external building heat insulating polystyrene board and including adhering dry powder mortar and anticracking dry powder mortar, and belongs to the field of building material technology. The dry powder mortar system has high adhesion strength, high compression strength, low heat conducting coefficient, less dry contraction deformation, excellent placeability, high water preserving property, and asy construction and transportation. It is mixture of Portland cement, flyash, quartzite, dispersive polymer glue powder, water preserving agent, composite admixture, fiber, etc. It is mixed with water in 20 wt% before being used as the adhering layer or anticracking layer for heat insulating polystyrene board.

Description

technical field [0001] The invention relates to a dry powder mortar system, which can be divided into dry powder bonding mortar and dry powder anti-cracking mortar according to its function and effect, and is applied to the bonding layer and anti-cracking layer of polystyrene insulation boards, belonging to the field of building materials industry. Background technique [0002] External wall thermal insulation system appeared in Europe as early as the 1970s. By reducing the temperature change and moisture condensation of external wall buildings, it can significantly reduce building damage and reduce the overall construction cost. Its superiority has been proven Inspection and certification. With the further development and maturity of foreign wall insulation technology, this technology gradually entered the Chinese market in the early 1990s, and the development of the field of external wall insulation began to accelerate immediately. Through the introduction and exchange of...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B18/08C04B14/06
CPCY02W30/91
Inventor 董善刚孟凡华祝洒虎刘永屏
Owner 刘永屏
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