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Microstress fiber mortar mixture applied to exterior-wall surface

A fiber mortar and micro-stress technology, which is applied in the field of civil engineering construction, can solve problems such as cracking of external wall plastering layer mortar, and achieve the effects of reducing water-cement ratio, simple construction procedure and good bonding performance.

Inactive Publication Date: 2015-12-09
DALIAN KEYKOWN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the cracking problem of the mortar of the exterior wall plastering layer, and provides a kind of micro-stress fiber mortar mixture for the exterior wall surface layer which can prevent the surface layer from cracking, is convenient for construction and low in cost.

Method used

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  • Microstress fiber mortar mixture applied to exterior-wall surface
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  • Microstress fiber mortar mixture applied to exterior-wall surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The raw material composition and mass percentage are shown in Table 1:

[0017] Table 1

[0018]

[0019] Weigh the components in Table 1 according to the mass percentage, and stir evenly after adding water to ensure their workability and uniformity, and reduce the water consumption as much as possible under the condition of meeting the construction fluidity.

Embodiment 2

[0021] The raw material composition and mass percentage are shown in Table 2:

[0022] Table 2

[0023]

[0024] The manufacturing method is the same as in Example 1.

[0025] Experiments were carried out according to the proportions of Examples 1 and 2 of the present invention, and the flexural strength, tensile bonding strength, and 90d shrinkage rate were compared with the traditional surface mortar. The results are shown in Table 3:

[0026] table 3

[0027]

[0028] The results show that the micro-stress fiber mortar of the present invention has high flexural strength, high tensile bonding strength, low shrinkage, and good crack resistance.

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Abstract

The invention discloses a microstress fiber mortar mixture applied to an exterior-wall surface, and the mixture is capable of preventing the surface from cracking and is convenient for construction and low in cost. The mixture is composed of, in percent by mass, 35-40% of cement, 50-55% of medium sand, 1-2% of an efficient water reducer, 8-10% of an expanding agent, and 0.5-1% of a high-strength fibrous material.

Description

Technical field [0001] The invention relates to the field of civil engineering construction, in particular to a micro-stress fiber mortar mixture used for an outer wall surface, which can prevent surface layer cracking, is convenient for construction, and has low cost. Background technique [0002] At present, the commonly used exterior wall plastering materials include cement mortar, lime mortar and cement-lime mixed sand. However, due to frequent changes in ambient temperature, repeated humid and dry alternates, it is easy to shrink and crack, resulting in rain leakage in summer and cold in winter. At the same time, the irregular cracks produced affect the appearance of the building, and the cost of secondary maintenance is expensive. [0003] Chinese Patent Publication No. CN101328048A discloses a plastering mortar for external thermal insulation of external walls and a preparation method thereof. The surface mortar powder for external thermal insulation of ordinary external wal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/42C04B14/40C04B16/06C04B14/38
Inventor 贾金青涂兵雄刘春梅封硕
Owner DALIAN KEYKOWN TECH CO LTD