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Water-borne epoxy resin-modified cement mortar used for structure reinforcement and production method thereof

A water-based epoxy resin and epoxy resin technology, applied in the field of chemical building materials, can solve the problems of impermeability, carbonation resistance, frost resistance and other durability properties and rare structures, and achieve excellent mechanical properties and technology Excellent performance, good stability and small particle size

Inactive Publication Date: 2019-07-05
SUZHOU CONCRETE CEMENT PROD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the method of repair and reinforcement using modified mortar, the research on the bonding performance of old and new mortar is more common, but the impact on the durability and structure of reinforced mortar such as impermeability, carbonation resistance, and frost resistance research is rare

Method used

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  • Water-borne epoxy resin-modified cement mortar used for structure reinforcement and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Embodiment 1 emulsified water-based epoxy resin curing agent ZB-804

[0083] The emulsifying epoxy resin curing agent ZB-804 of the present embodiment, raw materials include epoxy resin E-51, epoxy resin E-44, triethylenetetramine, propylene glycol methyl ether, polyethylene glycol 400 and an appropriate amount of Ionized water; the molar ratio of each component is:

[0084] Epoxy Resin E-51: Epoxy Resin E-44: Triethylenetetramine: Propylene Glycol Methyl Ether: Polyethylene Glycol 400=0.25︰0.30︰0.85︰0.15︰0.45;

[0085] Prepared by:

[0086] (1) Prepare each component according to the proportion, including epoxy resin E-51 100g, epoxy resin E-44 140g, triethylenetetramine 130g, propylene glycol methyl ether 15g, 188g polyethylene glycol 400;

[0087] (2) Epoxy resin E-51 and epoxy resin E-44 are mixed at room temperature, dissolved with propylene glycol methyl ether, and added in a reaction vessel with a condensation and stirring device;

[0088] (3) Slowly add polye...

Embodiment 2

[0094] Example 2 Emulsified water-based epoxy resin curing agent ZB-804

[0095] The emulsified water-based epoxy resin curing agent ZB-804 of the present embodiment, raw materials include epoxy resin E-51, epoxy resin E-44, triethylenetetramine, propylene glycol methyl ether, polyethylene glycol 400 and an appropriate amount of Ionized water; the molar ratio of each component is:

[0096] Epoxy resin E-51: epoxy resin E-44: triethylenetetramine: propylene glycol methyl ether: polyethylene glycol 400 = 0.40: 0.45: 1.15: 0.30: 0.90;

[0097] Prepared by:

[0098] (1) Prepare each component according to the proportion, including epoxy resin E-51 150g, epoxy resin E-44 200g, triethylenetetramine 168g, propylene glycol methyl ether 27g, 300g polyethylene glycol 400;

[0099] (2) Epoxy resin E-51 and epoxy resin E-44 are mixed at room temperature, dissolved with propylene glycol methyl ether, and added in a reaction vessel with a condensation and stirring device;

[0100] (3) Sl...

Embodiment 3

[0106] Example 3 Emulsified water-based epoxy resin curing agent ZB-804

[0107] The emulsified water-based epoxy resin curing agent ZB-804 of the present embodiment, raw materials include epoxy resin E-51, epoxy resin E-44, triethylenetetramine, propylene glycol methyl ether, polyethylene glycol 400 and an appropriate amount of Ionized water; the molar ratio of each component is:

[0108] Epoxy resin E-51: epoxy resin E-44: triethylenetetramine: propylene glycol methyl ether: polyethylene glycol 400 = 0.32: 0.35: 0.98: 0.20: 0.58;

[0109] Prepared by:

[0110] (1) Prepare each component according to the proportion, including 120g of epoxy resin E-51, 155g of epoxy resin E-44, 143g of triethylenetetramine, 18g of propylene glycol methyl ether, and 232g of polyethylene glycol 400;

[0111] (2) Epoxy resin E-51 and epoxy resin E-44 are mixed at room temperature, dissolved with propylene glycol methyl ether, and added in a reaction vessel with a condensation and stirring devic...

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Abstract

The invention provides water-borne epoxy resin-modified cement mortar used for structure reinforcement and a production method thereof. The cement mortar is composed of A, B and C components and additional water with a mass ratio of 1 to (1.0 to 2.5) to (10 to 45) to (1.0 to 7.0), wherein the A component is composed of 100 parts of epoxy resin, 0-25 parts of epoxy reactive diluent, 8-20 parts of epoxy flexibilizer and 0.1-0.5 part of defoaming agent, the B component is composed of 100 parts of curing agent, 3-10 parts of curing accelerator and 0.8-2.5 parts of coupling agent, and the C component is composed of 100 parts of silicate cement, 100-300 parts of aggregate, 5-30 parts of silica fume and 0.1-0.5 part of water reducer. The invention further provides an emulsion-type water-borne epoxy resin curing agent ZB-804. The produced water-borne epoxy resin-modified cement mortar is used for repair and reinforcement of concrete buildings and structures, the durability of cement concrete is improved, the service lives of the structures are prolonged, and safe use of the buildings is guaranteed.

Description

[0001] Field of invention [0002] The present invention relates to the technical field of chemical building materials, and specifically to a water-based epoxy resin modified cement mortar for structural reinforcement and a preparation method thereof. [0003] technical background [0004] The cement concrete and products industry is the basic industry of the national economy. According to incomplete statistics, there are currently about 10,788 ready-mixed concrete companies in my country, with an annual output of nearly 1.8 billion cubic meters in 2016. China is the world's largest concrete producer and consumer. The production capacity of industries closely related to concrete, such as cement, sand and gravel aggregates, and admixtures, ranks first in the world. In particular, the use of sand and gravel aggregates is huge. In 2016, more than 10 billion tons of sand and gravel aggregates were used in concrete. According to analysis, my country currently emits 1 ton of CO for ...

Claims

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Application Information

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IPC IPC(8): C04B28/04C08G59/62C04B24/28C04B111/20C04B111/27C04B111/72
CPCC04B24/281C04B28/04C04B2111/20C04B2111/27C04B2111/29C04B2111/72C08G59/62C04B14/068C04B18/146C04B2103/302C04B24/32C04B2103/0068C04B24/42C04B24/023
Inventor 骆静静邓建良匡红杰陈晶晶刘远祥李龙梓谢一飞李酉成
Owner SUZHOU CONCRETE CEMENT PROD RES INST
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