A kind of high toughness anti-cracking grouting cement mortar and preparation method thereof

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 restricted. 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 cem...

Examples

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 10 mm and 45 stainless s...

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 10 mm and 45 stainless st...

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 10 mm and 45 stainless...

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 restricted. 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 cem...

Examples

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 10 mm and 45 stainless s...

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 10 mm and 45 stainless st...

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 10 mm and 45 stainless...