Special cement-base patching material and cement concrete pavement quick repairing method

Abstract

The invention discloses a special cement-base patching material and a corresponding cement concrete pavement quick repairing method built according to the special cement-base patching material. The patching material is prepared from the following ingredients in specific weight parts: magnesium phosphate cement, sulphate aluminum cement, early strength agents, water reducing agents, redispersible emulsion powder, pulverized fuel ash, silicon carbide, fine sand powder, detritus, carbon fiber and water-solubility polyurethane. The special cement-base patching material has the advantages that the mechanical performance, the anti-abrasion performance, the waterproof anti-permeability performance, the durability performance and the like meet application requirements; required construction equipment is simple; the construction process is simple and convenient; the influence of weather on construction is little; the construction can be performed at normal temperature and in rainy and snowy weather; the maintenance time is short; the traffics can be fast opened; the influence on the traffics is little; good social benefits and social benefits are realized; the engineering application prospects are wide.

Description

technical field [0001] The invention belongs to the technical field of maintenance and repair of cement concrete pavement, and in particular relates to a special cement-based repair material and a quick repair method for cement concrete pavement. Background technique [0002] Cement concrete pavement is an important pavement structure form, which is widely used in the road network of our country. However, due to the impact of channelized traffic, vehicle overloading, climatic factors, etc., the cement concrete pavement often has cracks, broken boards, voids and other road surface diseases before reaching the expected service life. Functionality is adversely affected. When repairing cement concrete pavement diseases, commonly used repair materials include inorganic and organic materials, among which organic materials mainly include epoxy resin and asphalt materials, but organic materials generally have poor adhesion to the original pavement and low strength , Single perform...

AI Technical Summary

Problems solved by technology

However, due to the influence of channelized traffic, vehicle overloading, climatic factors, etc., the cement concrete pavement often has road surface diseases such as cracks, broken plates, and voids before reaching the expected service life. Functionality is adversely affected

When repairing cement concrete pavement diseases, commonly used repair materials include inorganic and organic materials, among which organic materials mainly include epoxy resin and asphalt materials, but organic materials generally have poor adhesion to the original pavement and low strength , single performance and other issues

In addition, compared with inorganic materials, organic materials are more expensive and more likely to cause environmental pollution

At present, inorganic repair materials are generally prepared with cement of different components as the base material. Such materials have disadvantages such as slow strength development, long time of closed traffic, poor bonding performance, poor durability, and the need for secondary repairs.