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Cheap high-flexibility plaster gluing slurry and its production

A plastering mortar, low-cost technology, applied in the field of plastering mortar, can solve the problems of doubled cost, increased difficulty in promoting external wall insulation technology, etc. Effect

Inactive Publication Date: 2007-06-20
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Such a high amount of polymer will lead to a double increase in cost, making it more difficult to promote external wall insulation technology

Method used

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  • Cheap high-flexibility plaster gluing slurry and its production
  • Cheap high-flexibility plaster gluing slurry and its production

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] For the preparation formula of styrene-acrylic emulsion modified plastering mortar, refer to Table 4 for the formula of styrene-acrylic emulsion modified plastering mortar of the present invention and comparative examples. In this formula, the ratio of mortar to sand is 1:2.5, the amount of equivalent replacement of cement by composite admixture is 50%, the ratio of poly to rubber is 0.10, and the ratio of water to cement is 0.38.

[0093] The folding ratio of the glue of this formula is 2.55.

Embodiment 2

[0095] For the preparation formula of styrene-acrylic emulsion modified plastering mortar, refer to Table 4 for the formula of styrene-acrylic emulsion modified plastering mortar of the present invention and comparative examples. In this formula, the ratio of mortar to sand is 1:2.5, the amount of equivalent replacement of cement by composite admixture is 40%, the ratio of poly to rubber is 0.10, and the ratio of water to cement is 0.38.

[0096] The folding ratio of the glue of this formula is 2.94.

Embodiment 3

[0098] For the preparation formula of styrene-acrylic emulsion modified plastering mortar, refer to Table 4 for the formula of styrene-acrylic emulsion modified plastering mortar of the present invention and comparative examples. In this formula, the cement-sand ratio is 1:2.5, the equivalent amount of the composite admixture replacing cement is 30%, the polymer-to-cement ratio is 0.10, and the water-to-cement ratio is 0.39.

[0099] The folding ratio of the glue of this formula is 2.95.

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Abstract

A modified polymer finishing mortar for external-wall thermal-insulating system is prepared by adding into glue sand in proportion of 1:2.5, fixing polymer emulsion admixture with PAE and SAE, substituting cement with composite admixture and composite modifying by polymer and admixture. It's cheap and convenient, has lower mortar pressure fracture rate and better flexibility.

Description

technical field [0001] The invention belongs to the field of building materials and relates to a plastering mortar used for the protective layer of an external thermal insulation system of an external wall. Background technique [0002] In recent years, with the continuous advancement of China's building energy-saving work, external wall insulation technology has developed vigorously as an important building energy-saving technology in China. However, the common problem that the external thermal insulation surface of the external wall is easy to crack has always plagued the promotion of this technology. Almost all expanded polystyrene board (EPS) external bonding technologies have a common difficulty, that is, cracks appear on the wall after about one year of completion. , and the cracking of the surface layer will lead to water penetration and reduce or fail the function of external insulation. Therefore, improving the anti-cracking performance of exterior wall plastering ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/04C04B18/30C04B24/24C04B111/50
CPCC04B28/02Y02W30/91C04B7/12C04B14/06C04B18/04C04B18/08C04B18/141C04B20/026C04B24/2641C04B2103/44C04B2103/50
Inventor 钟世云王峰
Owner TONGJI UNIV
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