Concrete crack repairing agent with low viscosity and dynamic load structure

A dynamic load, concrete technology, applied in the direction of adhesives, adhesive types, epoxy resin adhesives, etc., can solve the problems of unsafe and reliable, hidden dangers, safety in transportation, etc., and achieve reasonable cost performance, convenient construction, and long service life. Effect

Active Publication Date: 2015-02-04
苏州市姑苏新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned dynamic load concrete structure has been subjected to dynamic load fatigue for a long time. As the service life increases, cracks will inevitably form, and the cracks formed are generally structural micro cracks with a width of less than 1.5mm. Repairs will shorten the service life of road traffic buildings, causing traffic safety hazards
[0004] Existing concrete crack repair agents are generally aimed at ordinary concrete cracks, and generally cannot pass the fatigue resistance test. For example, the Chinese invention patent CN101230244A discloses a self-permeable concrete crack repair glue and its preparation method, which contains unsaturated resin , and has not passed the anti-fatigue ability test, so it is not safe and reliable to use in the repair of roads and airports, and cannot be used for crack repair of dynamic load concrete structures

Method used

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  • Concrete crack repairing agent with low viscosity and dynamic load structure
  • Concrete crack repairing agent with low viscosity and dynamic load structure
  • Concrete crack repairing agent with low viscosity and dynamic load structure

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A low-viscosity dynamic load structural concrete crack repair agent, comprising A component and B component, specifically comprising the following components:

[0042]

[0043] The preparation method of above-mentioned low-viscosity dynamic load structural concrete crack repair agent is as follows:

[0044](1) Preparation of component A: Weigh the raw materials according to the above weight ratio, first mix 70.0 parts of bisphenol A epoxy resin, 20.0 parts of hydrogenated bisphenol A epoxy resin, 23.0 parts of reactive diluent, 2.0 parts of Add the toughening agent into the hydraulic disperser, stir at high speed for 1 hour, finally add 0.5 part of defoamer, stir at medium speed for 0.5 hour, discharge, and pack to obtain the finished product of component A;

[0045] (2) Preparation of component B: Weigh the raw materials according to the above weight ratio, add 60.0 parts of amidoamine curing agent, 30.0 parts of aliphatic amine curing agent, 2.5 parts of accelerato...

Embodiment 2

[0049] A low-viscosity dynamic load structural concrete crack repair agent, comprising A component and B component, specifically comprising the following components:

[0050]

[0051] The preparation method of above-mentioned low-viscosity dynamic load structural concrete crack repair agent is as follows:

[0052] (1) Preparation of component A: Weigh the raw materials according to the above weight ratio, first mix 50.0 parts of bisphenol A epoxy resin, 40.0 parts of hydrogenated bisphenol A epoxy resin, 10.0 parts of reactive diluent, 2.0 parts of Add the toughening agent into the hydraulic disperser, stir at high speed for 1 hour, finally add 0.5 part of defoamer, stir at medium speed for 0.5 hour, discharge, and pack to obtain the finished product of component A;

[0053] (2) Preparation of component B: Weigh raw materials according to the weight ratio, add 60.0 parts of amidoamine curing agent, 30.0 parts of aliphatic amine curing agent, 2.5 parts of accelerator, and 15...

Embodiment 3

[0057] A low-viscosity dynamic load structural concrete crack repair agent, comprising A component and B component, specifically comprising the following components:

[0058]

[0059] The preparation method of above-mentioned low-viscosity dynamic load structural concrete crack repair agent is as follows:

[0060] (1) Preparation of component A: Weigh raw materials according to the above weight ratio, first mix 50.0 parts of bisphenol A epoxy resin, 40.0 parts of hydrogenated bisphenol A epoxy resin, 10.0 parts of reactive diluent, 5.0 parts of Add the toughening agent into the hydraulic disperser, stir at high speed for 1 hour, and finally add 1.0 part of defoamer, stir at medium speed for 0.5 hour, discharge, and pack to obtain the finished product of component A;

[0061] (2) Preparation of component B: Weigh the raw materials according to the above weight ratio, add 60.0 parts of amidoamine curing agent, 30.0 parts of aliphatic amine curing agent, 2.5 parts of accelerat...

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Abstract

The invention discloses a concrete crack repairing agent with low viscosity and a dynamic load structure. The concrete crack repairing agent comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 3 to 0.8-1.2; in terms of weight, the component A comprises the following components: 40.0-70.0 parts of bisphenol A epoxy resins, 20.0-40.0 parts of hydrogenated bisphenol A epoxy resins, 8.0-23.0 parts of reactive diluents, 1.0-5.0 parts of a toughening agent and 0.5-1.5 parts of antifoaming agents; and the component B comprises the following components: 45.0-60.0 parts of acylamino amine hardeners, 20.0-30.0 parts of aliphatic amine hardeners, 2.5-5.0 parts of accelerants, 4.5-18.0 parts of coupling agents and 1.0-2.5 parts of anti-aging agents. The concrete crack repairing agent with the low viscosity and the dynamic load structure is mainly used for projects of repairing cracks caused by various dynamic load fatigue functions.

Description

technical field [0001] The invention relates to a low-viscosity dynamic load structural concrete crack repair agent, which belongs to the technical field of building materials. Background technique [0002] Concrete structure is the most widely used structure in civil engineering, but due to factors such as construction technology, temperature difference, concrete drying shrinkage, foundation and overload, long-term impact load and other factors, concrete cracks will form, which has become a concrete building structure. The most common defect in the project, so that there are hidden dangers in the quality of the project. [0003] With the rapid development of the national construction industry, especially in recent years, the country and localities have accelerated the development of transportation facilities such as high-speed railways, expressways, urban subways, and urban elevated roads. It is estimated that by 2020, my country's expressway network will reach 85,000 kilom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/02
Inventor 王惠明朱华张晓华陈晓龙
Owner 苏州市姑苏新型建材有限公司
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