Concrete repair agent and application thereof

Abstract

The invention relates to a concrete repair agent. The concrete repair agent is prepared from, by weight, acrylic-based resin, an emulsifying agent, a penetrating agent and a diluting agent. The concrete repair agent is commonly known as a concrete solder and is a waterborne environment-friendly agent, and the concrete repair agent is capable of having cross-linking reaction with dust generated ina cement and concrete grinding process to enable re-setting and hardening, and defects of holes, cracks and the like of concrete repaired. By application of the concrete repair agent to new and old concrete combination faces, adhesion firmness of the new and old concrete combination faces can be remarkably improved, and concrete bulging, layering and shedding can be prevented. In addition, the concrete repair agent is simple in operation, early strength of concrete can be quickly improved, an integral construction period is shortened, and concrete compactness is improved to make it easy for grinding and polishing.

Description

technical field [0001] The invention relates to a building material, in particular to a concrete repair agent and its application. Background technique [0002] It has been more than 180 years since the advent of concrete in 1830, and many important and large-scale infrastructures have been constructed of concrete; however, over time, some of these infrastructures are due to harsh natural environmental conditions, such as: The large temperature difference between day and night, the seasonal dryness and wetness, sea wave erosion, severe saline-alkali corrosion, etc., as well as the frequent occurrence of traffic accidents in some areas, have caused serious damage to cement and concrete infrastructure, especially highways. [0003] However, considering that the amount of concrete used in existing buildings is large, and most of the concrete cannot be recycled after damage, the maintenance of concrete works is very important, especially for large-volume concrete such as dams an...

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Problems solved by technology

[0005] Such as the disclosed a kind of cement concrete repairing agent disclosed in the Chinese patent with the publication number "CN1844030A", the above-mentioned patent mainly solves the problems such as poor construction performance and poor strength in the later stage, but this type of concrete repairing agent cannot be used from Fundamentally solve the problems of sanding, cracking and low strength of the original concrete, which are also the problems of most concrete repair agents on the market

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