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Micro-expansion waterproof mortar and preparation method thereof

A waterproof mortar and micro-expansion technology, applied in the field of building materials, can solve problems such as difficult to meet, requirements, etc., and achieve the effect of improving waterproofing, meeting engineering needs, and improving engineering quality

Inactive Publication Date: 2019-11-19
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the waterproof and anti-seepage effect of the existing micro-expansion waterproof mortar is still difficult to meet the requirements in many aspects such as waterproof, anti-seepage and crack resistance.

Method used

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  • Micro-expansion waterproof mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Take 75 parts of cement, 25 parts of fly ash, and 300 parts of sand according to the weight percentage of raw materials, stir evenly, then add 75 parts of water, stir until viscous, finally add 0.5 parts of polypropylene fiber, and 1.7 parts of redispersible latex powder, 0.4 part of cellulose ether, 0.1 part of UEA expansion agent, 0.05 part of water reducer, and 0.02 part of nano calcium carbonate were stirred and mixed.

Embodiment 2

[0016] Take 95 parts of cement, 5 parts of fly ash, and 300 parts of sand according to the weight percentage of raw materials, stir evenly, then add 100 parts of water, stir until viscous, finally add 2.3 parts of polypropylene fiber, and 0.6 part of redispersible latex powder. 0.9 parts of cellulose ether, 2.7 parts of UEA expansion agent, 3 parts of water reducing agent, and 2 parts of nano calcium carbonate were stirred and mixed.

Embodiment 3

[0018] Take 80 parts of cement, 20 parts of fly ash, and 300 parts of sand according to the weight percentage of raw materials, stir evenly, then add 80 parts of water, stir until viscous, finally add 1.5 parts of polypropylene fiber, and 1 part of redispersible latex powder. 0.5 part of cellulose ether, 0.8 part of UEA expansion agent, 0.9 part of water reducer, and 0.6 part of nano calcium carbonate were stirred and mixed.

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Abstract

The invention discloses a micro-expansion waterproof mortar and a preparation method thereof. The micro-expansion waterproof mortar of the invention is composed of the following raw materials by weight: 75-95 parts of cement, 5-25 parts of fly ash, 250-400 parts of sand, 75-100 parts of water and 7-9 parts of an expansive fiber anti-cracking waterproof agent. The preparation method for the micro-expandable waterproof mortar of the invention comprises the following steps: weighing 75-95 parts of cement, 5-25 parts of fly ash and 250-400 parts of sand according to the weight percentage of the raw materials, carrying out uniform mixing under stirring, adding 75-100 parts of water, carrying out stirring until the formed mixture is viscous, finally adding 7-9 parts of the expansive fiber anti-cracking waterproof agent, and performing stirring and mixing. The micro-expandable waterproof mortar prepared by using the preparation method in the invention is greatly improved in waterproofing, anti-seepage and anti-cracking effects, meets engineering needs, and improves project quality.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a micro-expansion waterproof mortar and a preparation method thereof. Background technique [0002] Cement-based material is an anisotropic heterogeneous material composed of solid phase, liquid phase and gas phase, and there are a large number of fine cracks and pores inside it. The existence of these cracks and pores provides channels for the transmission of water molecules in cement-based materials, thereby reducing the waterproof and impermeability of cement-based materials, and ultimately affecting the durability of cement-based materials and the life and safety of buildings. Sexuality is adversely affected. [0003] In order to improve the water resistance and impermeability of cement-based materials, waterproofing agents are widely used in cement-based materials. At the same time, in order to prevent the cracking of cement-based materials, additive materials with anti-c...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2111/27C04B18/08C04B14/06C04B16/0633C04B2103/0057C04B24/383C04B22/148C04B22/06C04B2103/302C04B22/10
Inventor 薛晨阚强
Owner CHINA MCC17 GRP
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