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External thermal-insulation dry-mixed mortar of external wall

A technology for external thermal insulation of external walls and dry-mixed mortar, which is applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc. High crack resistance, improved waterproof performance, and extended open time

Active Publication Date: 2011-05-11
REAL ESTATE CONSTR ANGANG GROUP
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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 resource waste and environmental pollution; the mortar has poor impermeability, The shrinkage rate is large, which is the weak link in the occurrence of construction quality problems such as wall cracking, peeling, peeling, and leakage.
The disadvantages are high cost, poor construction and poor product performance

Method used

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  • External thermal-insulation dry-mixed mortar of external wall
  • External thermal-insulation dry-mixed mortar of external wall
  • External thermal-insulation dry-mixed mortar of external wall

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] An external thermal insulation dry-mixed mortar is prepared from the following ingredients in proportions by weight:

[0024]

[0025] Its preparation process is to accurately measure each component according to the proportion, then add it to the mixing equipment in turn, stir evenly, and then it will be a finished product after being packed in bulk or in bags. When using it, add 21 parts of water and stir for 3-5 minutes. Stir evenly and the color is consistent. , which can be used for building construction.

[0026]

Embodiment 2

[0028] An external thermal insulation dry-mixed mortar is prepared from the following ingredients in proportions by weight:

[0029]

[0030] Its preparation process is to accurately measure each component according to the proportion, then add them to the mixing equipment in turn, stir evenly, and then it will be the finished product after being packed in bulk or in bags. When using it, add 22 parts of water and stir for 3-5 minutes. Stir evenly and the color is consistent. , which can be used for building construction.

[0031]

Embodiment 3

[0033] An external thermal insulation dry-mixed mortar is prepared from the following ingredients in proportions by weight:

[0034]

[0035] Its preparation process is to accurately measure each component according to the proportion, then add it to the mixing equipment in turn, stir evenly, and the finished product will be finished after bulk or bagged. When using, add 22.5 parts of water and stir for 3-5 minutes. Stir evenly and the color is consistent. , which can be used for building construction.

[0036]

[0037] In the above embodiments, the cement is ordinary Portland cement above grade 42.5. The fly ash is selected as Class C fly ash or Class F fly ash that conforms to the GB / T1596-2005 standard secondary product index. Sand is river sand with continuous gradation in the particle size range of 0.1-0.5mm. The cellulose ether is methyl hydroxyethyl cellulose ether (MHEC) or methyl hydroxypropyl cellulose ether (MHPC). The components of redispersible rubber powd...

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Abstract

The invention belongs to the field of building material adhesives, in particular relates to an external thermal-insulation dry-mixed mortar of an external wall, which is applied to adhering thermal-insulation plates on the surface of a building base wall body. The external thermal-insulation dry-mixed mortar is characterized by mainly comprising the following components in parts by weight: 25-50 parts of cement, 5-25 parts of fly ash, 45-65 parts of sand, 0.15-0.20 part of cellulose ether, 2.5-3.00 parts of subdividable gelatine powder and 0.02-0.05 part of starch ether. The preparation process of the external thermal-insulation dry-mixed mortar comprises the following steps of accurately weighing all the components in certain proportion, mixing and stirring all the components uniformly, adding water to the mixture for stirring according to the weight ratio of 100:(18-22), and then obtaining the external thermal-insulation dry-mixed mortar which can be applied to the building construction. The invention has the beneficial effects of high bonding strength, system safety, strong water preserving capability, excellent sagging resistance, excellent flexibility, frost-thawing resistance, cracking resistance and weathering resistance, low water absorption rate, small degree of shrinkage, simpleness, convenience and high-speed for construction, labor and material saving, nontoxicity, tastelessness, safety and environment protection.

Description

technical field [0001] The invention belongs to the field of building material adhesives, and in particular relates to an external thermal insulation dry-mixed mortar used for pasting thermal insulation boards on the surface of building base walls. 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...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/08C04B24/02C04B111/72
CPCC04B28/04Y02W30/91C04B14/068C04B18/08C04B20/0076C04B24/2623C04B24/383C04B40/0608
Inventor 徐明君董祥斌时维华石爽马丽丽
Owner REAL ESTATE CONSTR ANGANG GROUP
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