Flexible waterproof mortar material

A flexible waterproof and mortar material technology, applied in the field of building materials, can solve the problems of poor permeability resistance, brittleness, low interface bond strength, shrinkage of bond strength, etc., and achieve high temperature aging resistance and excellent water resistance, flexibility Good anti-seepage and water resistance, and the effect of preventing tiny cracks from leaking

Inactive Publication Date: 2017-11-17
合肥翠鸟节能建材有限公司
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AI Technical Summary

Problems solved by technology

[0002] Because ordinary cement-based repair mortar is a typical brittle material, it presents a porous and loose structure, and its impermeability is poor, the interface bond strength is low, the freeze-thaw resistance is poor, and the corrosion resistance is poor, especially its impermeability is extremely poor. And there are defects of excessive brittleness, high indentation ratio and poor deformation coordination ability
Under the joint action of load and environmental factors, the long-term interfacial bond strength of cement concrete building exterior walls repaired by cement-based repair mortar with high brittleness and poor impermeability will appear shrinkage phenomenon, which can easily cause its occurrence. Phenomena such as cracking, hollowing or even falling off, cannot well meet the performance requirements of the overlay repair mortar for concrete building exterior walls at the present stage, and are greatly restricted in the application of concrete building exterior wall repair projects

Method used

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  • Flexible waterproof mortar material

Examples

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preparation example Construction

[0032] The preparation method of above-mentioned flexible waterproof mortar material, comprises the steps:

[0033] (1) Weigh the sand and heavy calcium powder according to the proportion of raw materials, put them into the mixer in turn, stir thoroughly, mix well and then grind for 5-10 minutes;

[0034] (2) Weigh cement and mica powder according to the ratio of raw materials, add to the material obtained in step (1), mix and stir evenly;

[0035] (3) Weigh the cellulose ether, wood fiber, and defoamer according to the ratio of raw materials, put them into the grinder, and grind them thoroughly for 5-10 minutes;

[0036] (4) Weigh the redispersible rubber powder according to the ratio of raw materials, put it into a high-speed disperser to fully disperse, then add thixotropic lubricant and modified starch ether weighed according to the ratio of raw materials, and stir evenly;

[0037] (5) Add half of the material obtained in step (3) to the material obtained in step (2), and...

Embodiment 1

[0041] [Example 1] A flexible waterproof mortar material, comprising the following raw material formula components in parts by weight: 140 parts of cement, 250 parts of sand, 9 parts of mica powder, 202 parts of heavy calcium powder, 290 parts of redispersible rubber powder, 3 parts of thixotropic lubricant, 0.3 part of modified starch ether, 0.7 part of cellulose ether, 3 parts of wood fiber, 7 parts of defoamer.

[0042] The preparation method of above-mentioned flexible waterproof mortar material, comprises the steps:

[0043] (1) Weigh the sand and heavy calcium powder according to the ratio of raw materials, put them into the mixer one by one, stir them thoroughly, and grind them for 5 minutes after mixing evenly;

[0044] (2) Weigh cement and mica powder according to the ratio of raw materials, add to the material obtained in step (1), mix and stir evenly;

[0045] (3) Weigh the cellulose ether, wood fiber, and defoamer according to the ratio of raw materials, put them ...

Embodiment 2

[0051] [Example 2] A flexible waterproof mortar material, comprising the following raw material formula components in parts by weight: 150 parts of cement, 260 parts of sand, 10 parts of mica powder, 208 parts of heavy calcium powder, 200 parts of redispersible rubber powder, 4 parts of thixotropic lubricant, 0.5 parts of modified starch ether, 1 part of cellulose ether, 5 parts of wood fiber, 10.5 parts of defoamer.

[0052] The preparation method of above-mentioned flexible waterproof mortar material, comprises the steps:

[0053] (1) Weigh the sand and heavy calcium powder according to the proportion of raw materials, put them into the mixer in turn, stir thoroughly, mix well and then grind for 7 minutes;

[0054] (2) Weigh cement and mica powder according to the ratio of raw materials, add to the material obtained in step (1), mix and stir evenly;

[0055] (3) Weigh the cellulose ether, wood fiber, and defoamer according to the ratio of raw materials, put them into the gr...

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Abstract

The invention discloses a flexible waterproof mortar material. The flexible waterproof mortar material is prepared from the following raw materials in parts by weight: 140 to 160 parts of cement, 250 to 270 parts of sand, 9 to 11 parts of mica powder, 202 to 214 parts of heavy calcium powder, 290 to 310 parts of dispersible adhesive powder, 3 to 5 parts of thixotropic lubricating agent, 0.3 to 0.6 part of modified starch enzyme, 0.7 to 1.2 parts of cellulose ether, 3 to 6 parts of wood fiber and 7 to 14 parts of de-foaming agent. The flexible waterproof mortar has superior flexibility, water resistance, seepage resistance, water retention property, interference bonding strength, volume stability, freezing-thawing resistance, high temperature aging resistance, water tolerance, alkaline corrosion resistance and the like, the flexibility, seepage resistance, water resistance, high bending resistance and compressive strength are ensured; slight crack leakage of a building shrinkage can be prevented in later use; the defect of susceptibility to aging and cracking in the existing flexible waterproof material is overcome and the stable quality of the mortar is ensured.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a flexible waterproof mortar material. Background technique [0002] Because ordinary cement-based repair mortar is a typical brittle material, it presents a porous and loose structure, and its impermeability is poor, the interface bond strength is low, the freeze-thaw resistance is poor, and the corrosion resistance is poor, especially its impermeability is extremely poor. And there are defects of excessive brittleness, high indentation ratio and poor deformation coordination ability. Under the joint action of load and environmental factors, the long-term interfacial bond strength of cement concrete building exterior walls repaired by cement-based repair mortar with high brittleness and poor impermeability will appear shrinkage phenomenon, which can easily cause its occurrence. Phenomena such as cracking, hollowing or even falling off cannot meet the performance requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/27C04B111/76
CPCC04B28/02C04B2111/27C04B2111/76C04B2201/50C04B14/06C04B14/20C04B14/28C04B2103/0057C04B24/383C04B24/38C04B18/26C04B2103/50C04B2103/0085
Inventor 吴龙生
Owner 合肥翠鸟节能建材有限公司
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