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Cement-based waterborne epoxy mortar, and preparation method and application thereof

A technology of epoxy mortar and water-based epoxy, which is applied in the field of building materials, can solve the problems that cannot fully meet the application requirements of cement composite materials, affect the construction period of the floor, affect the adhesion of floor paint, etc., and achieve good hydrophobicity and resistance. Permeability, increase internal compactness, and prolong service life

Inactive Publication Date: 2020-01-10
ASIA PAINT SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, most of the existing cement-based water-based epoxy mortars are in the research and development and trial stage. They can be dried within 24 hours, and the moisture content of the base layer is less than 6%. 6 months. After 6 months, the moisture under the concrete rises to the surface of the base layer, which will affect the adhesion of the floor paint, and the current water-based epoxy mortar has no anti-penetrating water effect. Once the surface is wet, it must wait. The construction can only be carried out after the water is dry, which will affect the construction period of the next floor
In addition, the compressive strength of the existing waterborne epoxy mortar is about 70MPa, which cannot fully meet the application requirements of cement composite materials

Method used

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  • Cement-based waterborne epoxy mortar, and preparation method and application thereof
  • Cement-based waterborne epoxy mortar, and preparation method and application thereof
  • Cement-based waterborne epoxy mortar, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] The present embodiment provides a cement-based water-based epoxy mortar, the formula is as follows:

[0080] Component A: 5 parts by weight of water-based epoxy emulsion, 5 parts by weight of silicone hydrophobic emulsion;

[0081] Component B: 3 parts by weight of water-based epoxy curing agent, 0.05 parts by weight of defoamer, and 8.2 parts by weight of water;

[0082] Component C: 44 parts by weight of quartz sand, 33 parts by weight of white cement, 0.25 parts by weight of water reducer, 0.1 part by weight of defoamer, 0.65 parts by weight of expansion agent, 0.4 parts by weight of thixotropic agent, 0.08 parts by weight of thickener, 0.03 parts by weight of water-retaining agent, 0.24 parts by weight of early strength agent;

[0083] The preparation method is as follows: mix the components in component A, component B and component C separately, and disperse uniformly; then mix component A and component B, disperse uniformly, and then add component C to obtain the...

Embodiment 2

[0085] The present embodiment provides a cement-based water-based epoxy mortar, the formula is as follows:

[0086] Component A: 3 parts by weight of water-based epoxy emulsion, 8 parts by weight of silicone hydrophobic emulsion;

[0087] Component B: 1.8 parts by weight of water-based epoxy curing agent, 0.01 parts by weight of defoamer, and 8.6 parts by weight of water;

[0088] Component C: 37 parts by weight of quartz sand, 40 parts by weight of white cement, 0.3 parts by weight of water reducer, 0.1 part by weight of defoamer, 0.57 parts by weight of expansion agent, 0.1 part by weight of thixotropic agent, and 0.01 part by weight of thickener, 0.01 parts by weight of water retaining agent, 0.5 parts by weight of early strength agent;

[0089] The preparation method is the same as in Example 1.

Embodiment 3

[0091] The present embodiment provides a cement-based water-based epoxy mortar, the formula is as follows:

[0092] Component A: 8 parts by weight of water-based epoxy emulsion, 3 parts by weight of silicone hydrophobic emulsion;

[0093] Component B: 4 parts by weight of water-based epoxy curing agent, 0.1 part by weight of defoamer, and 8.6 parts by weight of water;

[0094] Component C: 55 parts by weight of quartz sand, 20 parts by weight of white cement, 0.15 parts by weight of water reducer, 0.1 part by weight of defoamer, 0.35 parts by weight of expansion agent, 0.35 parts by weight of thixotropic agent, and 0.08 parts by weight of thickener, 0.03 parts by weight of water-retaining agent, 0.24 parts by weight of early strength agent;

[0095] The preparation method is the same as in Example 1.

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Abstract

The invention provides a cement-based waterborne epoxy mortar, and a preparation method and an application thereof. The cement-based waterborne epoxy mortar comprises a component A, a component B anda component C; the component A comprises a waterborne epoxy emulsion and an organosilicone hydrophobic emulsion; the component B comprises a waterborne epoxy curing agent; and the component C comprises quartz sands and white cement. The waterborne epoxy emulsion, the organosilicone hydrophobic emulsion and a cement base synergistically cooperate with each other, so the cement-based waterborne epoxy mortar is crosslinked in a mortar layer to form a compact double-layer interpenetrating network structure, the compressive strength and other mechanical properties of the cement-based waterborne epoxy mortar layer are remarkably improved, and the cement-based waterborne epoxy mortar layer is endowed with a good waterproof effect, thereby the cement-based waterborne epoxy mortar layer has damp-proof and impervious properties, and the service life of the cement-based waterborne epoxy mortar layer in terraces is prolonged.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a cement-based water-based epoxy mortar and a preparation method and application thereof. Background technique [0002] Cement-based composite materials are a kind of heterogeneous, multi-phase inorganic brittle materials with porous structure characteristics. Under the erosion of external aggressive media such as water, chloride ions, sulfates, carbon dioxide, etc., they will be destroyed at an accelerated rate, and their service life greatly shortened. With the gradual development of industry and materials, people add viscoelastic and tough polymers to cement-based mortar, so that the strength, bonding performance, flexural performance and durability of cement-based materials have been improved. There is a direct correlation between the poly-ash ratio (the solid content of the polymer and the mass ratio of cement), the type of polymer and its performance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/27
CPCC04B28/04C04B2201/50C04B2111/27C04B14/06C04B2103/302C04B2103/50C04B2103/0068C04B2103/0085C04B2103/44C04B2103/465C04B2103/10C04B24/281C04B24/42
Inventor 徐小月徐志新陈越李金钟
Owner ASIA PAINT SHANGHAI
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