Curing agent for bituminous pavement, preparation method and application thereof

Abstract

The invention discloses a curing agent for bituminous pavement and relates to the technical field of pavement curing. The key point of the technical scheme is that the curing agent comprises mutuallyindependent component A and component B; the component A comprises the following ingredients in parts by weight: 7-20 parts of refined asphalt, 10-40 parts of hardening agent, 1-5 parts of heat stabilizer, 1-10 parts of asphalt rejuvenate agent, 1-5 parts of anti-ageing agent, 10-30 parts of polytetrafluoroethylene emulsion and 1-5 parts of carbon black; the solid content of polytetrafluoroethylene emulsion is 65-70%, the emulsion particle diameter is 200-450nm and the relative density is 1.55; the component B comprises the following ingredients in parts by weight: 1-20 parts of styrene, 10-20parts of ammonium persulfate aqueous solution, 1-5 parts of Tween-80, 20-50 parts of deionized water, 1-5 parts of penetrant, 1-5 parts of heat stabilizer B and 1-5 parts of dispersing agent. According to the invention, the problem of poor impervious performance of the curing agent for bituminous pavement is solved. A hydrophobic membrane is adhered to the surface of bituminous pavement, so thatthe anti-penetrability performance of the bituminous pavement can be promoted and the service life of the bituminous pavement can be prolonged.

Description

technical field [0001] The invention relates to the technical field of road surface maintenance, more specifically, it relates to an asphalt road surface maintenance agent and its preparation method and application. Background technique [0002] About 80% of the high-grade highways that have been built and opened to traffic in my country are asphalt pavement. Asphalt pavement occupies a dominant position with the advantages of smooth surface, comfortable driving, low noise, good shock absorption, and renewable utilization of old asphalt mixture. . During use, under the action of various natural factors (such as oxygen, temperature, ultraviolet rays, water, etc.) Ruts, potholes, looseness, cracking, etc., if effective maintenance measures are not taken to eliminate diseases in time, the road surface will be seriously damaged. [0003] At present, the maintenance and repair method of asphalt pavement is mainly passive maintenance, that is, when the damage of the pavement seri...

AI Technical Summary

Problems solved by technology

During use, under the action of various natural factors (such as oxygen, temperature, ultraviolet rays, water, etc.) Ruts, potholes, looseness, cracks, etc., if effective maintenance measures are not taken to eliminate diseases in time, the road surface will be seriously damaged

[0003] At present, the maintenance and repair method of asphalt pavement is mainly passive maintenance, that is, when the damage of the pavement seriously affects driving, the overlay or new pavement is carried out. Although this method can obtain the performance of the new pavement, it also has some defects. : Pavement renovation has a great impact on traffic, especially for some busy urban arterial roads and expressways with large traffic volume; at the same time, the cost of road surface renovation is relatively high, and the waste asphalt mixture will pollute the environment

[0005] Although the existing asphalt pavement maintenance agent can fill the tiny cracks in the asphalt pavement, water seepage will still occur after filling. With the water seepage in the asphalt pavement, the cracks will gradually become larger, and the service life of the asphalt pavement is short

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