A new maintenance material of pavement crack, preparation and application thereof

Abstract

The invention relates to a new maintenance material of pavement crack, comprising the raw materials according to weight part as follows: 100 parts of 107 base glue, 1-10 parts of cross linker, 1-5 parts of tackifier, 5-50 parts of plasticiser, 1-100 parts of reinforcing filler, 0.1-0.5 parts of catalyst. The preparation method of the material is as follows: putting dimethyl silicone polymer base glue, reinforcing filler, plasticizer, tackifier and cross linker into a vacuum kneader to be uniformly mixed, obtaining component A; uniformly mixing catalyst and cross linker, obtaining component B;mixing components A and B according to the proportion of 1: 0.01-0.03, obtaining the material. The material has good weather resistance, aging resistance, ultraviolet resistance and self-levelling performance; the material does not need heat construction, has good repairing function for the pavement crack; the preparation method is simple; the invention can be widely applied to repairing and maintaining crack on asphalt, cement concrete pavement and correlative building.

Description

technical field [0001] The invention relates to road surface maintenance materials, in particular to a novel road surface crack maintenance material and its preparation and application. Background technique [0002] With the sharp increase of traffic volume and vehicle load, the damage of traffic road surface in our country is getting worse day by day. Cracks are the main damage form of pavement damage. Pavement cracks not only affect the appearance of the road, but also if the cracks are not filled and repaired in time, the road surface water will enter the pavement structural layer through the cracks, resulting in a decrease in the bearing capacity of the pavement. It causes diseases such as pumping, potholes, cracks, and looseness, which greatly shortens the service life of the pavement. [0003] At present, for the repair and maintenance of pavement cracks, the commonly used method is to use rubber asphalt or modified emulsified asphalt special filling material to deal ...

AI Technical Summary

Problems solved by technology

Cracks are the main damage form of pavement damage. Pavement cracks not only affect the appearance of the road, but also if the cracks are not filled and repaired in time, the road surface water will enter the pavement structural layer through the cracks, resulting in a decrease in the bearing capacity of the pavement. Causes diseases such as pumping, potholes, cracks, looseness, etc., greatly shortening the service life of the pavement

[0003] At present, for the repair and maintenance of pavement cracks, the commonly used method is to use rubber asphalt or modified emulsified asphalt special filling material to deal with it. The disadvantages are: it is easy to be limited by the characteristics of asphalt materials such as cold brittleness at low temperature and softening at high temperature. , the repaired cracks will cause the pavement to re-crack shortly after use as the temperature changes, increasing the cost of pavement maintenance