Preventive road maintenance material and construction method thereof

Abstract

The invention discloses a preventive road maintenance material. The preventive road maintenance material comprises a component A and a component B, wherein the component A comprises the following components in parts by weight: 30-35 parts of modified acrylic resin, 0.6-5.5 parts of a dispersant, 0.5-5 parts of fumed silica, 54-68 parts of a filler and 0.36-0.81 part of a toner; the component B isa curing agent; and the mass ratio of the component A to the component B is (100-95):(1-5). Through matching of specific raw material types according to a certain ratio, the raw materials achieve a synergistic interaction, and the obtained preventive road maintenance material has good adhesion, is firmly adhered to a cement concrete and asphalt pavement, can prevent moisture or debris from entering gaps in the pavement, and prolongs the service life of the pavement. The invention further provides a construction method using the preventive road maintenance material.

Description

technical field [0001] The invention relates to the technical field of road surface maintenance materials, in particular to a road preventive maintenance material and a construction method thereof. Background technique [0002] At present, my country's highway construction has made great achievements. With the gradual improvement of my country's highway network, the focus of my country's highways has gradually shifted to maintenance. Under the action of natural factors and various external factors, asphalt pavement and concrete pavement will have various normal and abnormal damages. The normal damage of asphalt and concrete pavement refers to the aging and fatigue damage of the pavement, which leads to cracks, spalling, potholes and other diseases on the pavement, which greatly shortens the service life of the asphalt pavement or concrete pavement; abnormal damage refers to the asphalt and concrete pavement. Various damage situations beyond normal conditions, such as overlo...

AI Technical Summary

Problems solved by technology

The seam seal cannot go deep into the inside of the crack, and crack cracking cannot be effectively solved; the fog seal layer can only be used on asphalt pavement with good emulsified asphalt permeability, and fog can be used when the traffic volume level is low and the road surface has excellent skid resistance. The sealing layer has a narrow scope of application; the main functional attribute of the micro-surface is water tightness, and secondly, it can fill ruts, improve skid resistance, and seal tiny pores and cracks. Poor, the anti-skid performance will be attenuated; the main function of the ultra-thin wear layer is to restore the function, and secondly, it can improve the anti-skid ability, repair minor cracks, reduce driving noise, and repair the original loose and aging road surface, but its maintenance cost is relatively high And the requirements for the bonding layer are very high

The current thin-layer overlay technology is mainly based on ultra-thin hot asphalt overlay, which has strong anti-skid ability, can reduce driving noise, improve flatness level, and enhance lateral drainage capacity, but the maintenance cost is high and timely cleaning is required porosity

Moreover, in the current preventive maintenance method for pavement, after construction, the pavement curing time is generally 6-8 hours, and the curing time is longer, which affects the driving quality and driving safety.

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