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High-tenacity crack-resistant grouting cement mortar and preparing method thereof

A technology of cement mortar and high toughness, applied in the field of high toughness grouting cement mortar and its preparation, can solve the problems of difficult to meet the engineering technical requirements of concrete toughening, high cross-linking density, poor impact resistance, etc., so as to improve the micro stress and strain. The effect of high performance, high specific surface energy and low cost

Active Publication Date: 2016-06-01
福建省东霖建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high crosslinking density and three-dimensional network structure of a single epoxy resin after curing, there are disadvantages such as large internal stress, brittleness, poor impact resistance, and easy cracking. It is difficult to meet the engineering technical requirements of concrete toughening, and its application is restricted certain restrictions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A high-toughness anti-crack grouting cement mortar, comprising the following components in parts by weight: 80 parts of cement, 160 parts of 100-mesh fine sand, 35 parts of water, 8 parts of polyurethane solution, 8 parts of epoxy resin emulsion, toughening compound 15 parts of materials, 3 parts of early strength agent, 6 parts of methacrylic acid, 4 parts of calcium formate, 5 parts of neopentyl glycol, 0.5 parts of sodium dodecylbenzenesulfonate, 2 parts of water reducing agent; Composite material, by weight, raw material is composed of: 1.5 parts of modified silica nanotubes, 25 parts of styrene-butadiene-styrene block copolymers, 48 ​​parts of activated wood flour fibers, 4 parts of silane coupling agent parts, 3.2 parts of solubilizer, 5 parts of filler and 200 parts of water.

[0042] The preparation method of the modified silicon dioxide nanotube comprises the following steps:

[0043] (1) Put 30 stainless steel balls with a diameter of 10mm and 45 stainless st...

Embodiment 2

[0061] A high-toughness anti-crack grouting cement mortar, comprising the following components in parts by weight: 80 parts of cement, 180 parts of 200-mesh fine sand, 20 parts of water, 10 parts of polyurethane solution, 5 parts of epoxy resin emulsion, toughening compound 15 parts of materials, 1.5 parts of early strength agent, 9 parts of methacrylic acid, 2 parts of calcium formate, 8 parts of neopentyl glycol, 0.2 parts of sodium dodecylbenzenesulfonate, 2.4 parts of water reducing agent; Composite material, by weight, the raw material is composed of: 1.2 parts of modified silica nanotubes, 28 parts of styrene-butadiene-styrene block copolymer, 46 parts of activated wood flour fibers, 5 parts of silane coupling agent 3.0 parts of solubilizer, 6 parts of filler and 180 parts of water.

[0062] The preparation method of the modified silicon dioxide nanotube comprises the following steps:

[0063] (1) Put 30 stainless steel balls with a diameter of 10mm and 45 stainless ste...

Embodiment 3

[0081] A high-toughness anti-crack grouting cement mortar, comprising the following components in parts by weight: 100 parts of cement, 120 parts of 50-mesh fine sand, 50 parts of water, 5 parts of polyurethane solution, 10 parts of epoxy resin emulsion, toughening compound 10 parts of materials, 6 parts of early strength agent, 2 parts of methacrylic acid, 6 parts of calcium formate, 2 parts of neopentyl glycol, 0.8 parts of sodium dodecylbenzenesulfonate, 0.9 parts of water reducing agent; Composite material, by weight, raw material is composed of: 1.8 parts of modified silica nanotubes, 22 parts of styrene-butadiene-styrene block copolymer, 50 parts of activated wood flour fibers, 3.5 parts of silane coupling agent parts, 3.5 parts of solubilizer, 4 parts of filler and 220 parts of water.

[0082] The preparation method of the modified silicon dioxide nanotube comprises the following steps:

[0083] (1) Put 30 stainless steel balls with a diameter of 10mm and 45 stainless ...

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Abstract

The invention belongs to the field of cement mortar preparing, and particularly relates to high-tenacity crack-resistant grouting cement mortar and a preparing method thereof. The mortar comprises 80-100 parts of cement, 120-180 parts of 50-200-mesh silver sand, 20-50 parts of water, 5-10 parts of polyurethane solutions, 5-10 parts of epoxy resin emulsion, 10-15 parts of toughening composite materials, 1.5-6 parts of early strength agent, 2-9 parts of methacrylic acid, 2-6 parts of calcium formate, 2-8 parts of neopentyl glycol, 0.2-0.8 part of sodium dodecyl benzene sulfonate and 0.9-2.4 parts of water reducing agent. As toughening composite materials are added into the cement mortar, whole concrete has good tenacity, good isotropy and good fatigue resistance, the crack resistance of the grouting mortar is better facilitated, tenacity is improved, and the later-period maintenance cost of engineering is reduced.

Description

technical field [0001] The invention belongs to the field of cement mortar preparation, and in particular relates to a high-toughness grouting cement mortar and a preparation method thereof. Background technique [0002] Ordinary mortar has a low tension-compression ratio, large dry shrinkage deformation, poor impermeability, crack resistance, corrosion resistance, and high density, so its application range is greatly limited. With the development of industry, to further improve the performance of mortar, it is necessary to improve the performance of cementing materials, so polymer mortar appeared. Use polymers to modify cement mortar so that while maintaining the advantages of the original inorganic materials of cement, such as compressive strength, flexural strength, and aging resistance, organic materials with strong cohesive force, good deformability, and strong sealing are added. characteristics, so that the cohesive force, frost resistance and impermeability of cement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/02C04B111/70C04B111/34
CPCC04B20/023C04B28/00C04B2111/343C04B2111/70C04B14/06C04B24/282C04B24/281C04B14/04C04B24/2688C04B16/02C04B24/42C04B2103/0068C04B2103/12C04B24/04C04B24/02C04B24/20C04B2103/302C04B20/0008C04B20/0048
Inventor 蒋国平肖三霞
Owner 福建省东霖建设工程有限公司
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