Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof

A technology for plastering mortar and building exterior walls, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as waste of resources, poor waterproof performance, inaccurate measurement, etc., and achieve improved waterproof performance , Excellent construction performance, and the effect of improving slip resistance

Inactive Publication Date: 2012-07-11
鞍钢房地产开发集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of traditional dry-mixed mortar for external thermal insulation of external walls are: because traditional dry-mixed mortar for external thermal insulation of external walls is generally mixed on the construction site, the measurement is inaccurate and the mixing is uneven, which will inevitably cause waste of resources and environme

Method used

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  • Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof
  • Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof
  • Dry-mixed surface mortar for external insulation of building exterior wall and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A dry-mixed plastering mortar for external thermal insulation of building exterior walls, which is made of the following raw materials in proportions by weight: 35 parts of cement; 10 parts of fly ash; 55 parts of sand; 0.15 parts of cellulose ether; 0.25 parts of wood fiber; 0.20 parts of agent; 2.5 parts of redispersible rubber powder; 0.02 parts of starch ether.

[0035] Its preparation method is to accurately measure each component according to the proportion, then add it to the mixing equipment in turn, and stir evenly to obtain the finished product. When using it, add 22 parts of water and stir for 3-5 minutes. After stirring evenly, the color is consistent, and then it can be used for building construction.

[0036] The results of the tensile bond strength test are shown in Table 1.

[0037] Table 1

[0038]

Embodiment 2

[0040] A dry-mixed plastering mortar for external thermal insulation of building exterior walls, which is made of the following raw materials in proportions by weight: 25 parts of cement; 25 parts of fly ash; 50 parts of sand; 0.2 part of cellulose ether; 0.25 part of wood fiber; 0.20 parts of agent; 2.5 parts of redispersible rubber powder; 0.05 parts of starch ether.

[0041] Its preparation method is to accurately measure each component according to the proportion, then add it to the mixing equipment in turn, and stir it evenly to form a finished product. When using it, add 19 parts of water and stir for 3-5 minutes. After stirring evenly, the color is consistent, and then it can be used in building construction.

[0042] The results of the tensile bond strength test are shown in Table 2.

[0043] Table 2

[0044]

Embodiment 3

[0046] A dry-mixed plastering mortar for external thermal insulation of building exterior walls, which is made of the following raw materials in proportions by weight: 28 parts of cement; 10 parts of fly ash; 62 parts of sand; 0.2 parts of cellulose ether; 3 parts of redispersible rubber powder ; 0.35 parts of starch ether; 0.3 parts of wood fiber; 0.25 parts of water-repellent agent.

[0047] Its preparation method is to accurately measure each component according to the proportion, then add it to the mixing equipment in turn, and stir it evenly to become the finished product. When using it, add 22 parts of water and stir for 3-5 minutes. Stir evenly and the color is consistent, then it can be used in construction. .

[0048] The results of the tensile bond strength test are shown in Table 3.

[0049] table 3

[0050]

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Abstract

The invention belongs to dry-mixed surface mortar for external insulation of building exterior wall and a preparation method thereof, characterizing in that the method comprises the following steps: accurately and proportionally metering the following raw materials: 25-35 parts of cement, 5-30 parts of coal ash, 50-80 parts of sand, 0.15-0.30 parts of cellulose ether, 0.20-0.40 parts of wood fiber, 0.20-0.30 parts of water-repellent agent, 3.00-3.50 parts of redispersible glue powder and 0.02-0.05 parts of starch ether, sequentially adding the above raw materials into mixing equipment, stirring uniformly, and packing in bulk or in bags to obtain the finished products. During usage, the dry-mixed mortar can be used for building construction after mixing with water at a weight ratio of 100:(19-22) and stirring. Compared with the prior art, the dry-mixed surface mortar disclosed by the invention has the following beneficial effects: the product has high strength, good flexibility and high crack resistance, and can generate good adhesive performance with various heat-insulating boards; the waterproof performance is excellent, the mortar layer has good breathing performance, and the product is air permeable but has no water seepage.

Description

technical field [0001] The invention belongs to the field of building material adhesives, and in particular relates to a dry-mixed plastering mortar for external thermal insulation of building exterior walls and a preparation method thereof. Background technique [0002] At present, building exterior wall insulation, as an effective measure of energy saving, has been developed unprecedentedly. Adhesives for external thermal insulation systems of building exterior walls are special mortars in dry-mixed mortar, which require high bonding strength, good crack resistance, no cracks on the plastered surface, no hollowing off, and good waterproof performance. The promotion of external wall insulation dry-mix mortar with better performance has great market potential. The disadvantages of traditional dry-mixed mortar for external thermal insulation of external walls are: because traditional dry-mixed mortar for external thermal insulation of external walls is generally mixed on the...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B18/08C04B14/06
CPCY02W30/91
Inventor 徐明君董祥斌时维华石爽马丽丽
Owner 鞍钢房地产开发集团有限公司
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