Self-heating curly asphalt blanket and preparation and construction methods thereof

Abstract

The invention discloses a self-heating curly asphalt blanket and a preparation and construction method thereof. The self-heating curly asphalt blanket comprises an asphalt mixture layer, a middle layer and a self-heating bonding layer, and is characterized in that the asphalt mixture layer, the middle layer and the self-heating bonding layer are sequentially laid from top to bottom to form an asphalt blanket; the asphalt mixture layer is composed of modified asphalt, coarse aggregate, fine aggregate and filler, the middle layer is composed of modified asphalt and fine aggregate, the self-heating bonding layer is composed of a heating bag, self-heating bonding layer modified asphalt, an isolating membrane and a geogrid, and the preparation process comprises the following steps: preparing the asphalt mixture layer; preparing the middle layer; preparing the self-heating bonding layer; performing curling into a blanket, sealing and storing; when the curly asphalt blanket is constructed, bonding the asphalt blanket with an asphalt pavement through three times of heating of the heating bag and melting of asphalt of the self-heating bonding layer and the middle layer, so that the bondingstrength between the asphalt blanket and the asphalt pavement is improved, the operation is simple, the construction can be quickly completed, and the influence on the environment is reduced.

Description

technical field [0001] The invention belongs to the field of road engineering, and in particular relates to a self-heating curly asphalt blanket and its preparation and construction methods. Background technique [0002] At present, most of the road projects in our country are asphalt pavement, and the service life of ordinary asphalt pavement is only about 15 years. After the traffic load and other natural factors, the asphalt pavement will need to Carry out maintenance work. The traditional construction technology is to mill and remove the damaged old road surface, and then pave a new layer of asphalt pavement. However, this construction method takes a long time and is likely to cause traffic jams. Night construction will affect the safety of surrounding residents. Rest, and the high temperature of on-site mixing and paving during construction will produce toxic gas to pollute the environment. The use of carpet-type asphalt pavement effectively solves the problems caused ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects of the existing carpeted asphalt pavement, the present invention provides a self-heating curly asphalt blanket and its preparation and construction method. The heating package reacts with the air and the spray solution to generate enough heat to melt the asphalt. The asphalt blanket is bonded to the road surface, thus simplifying the laying of asphalt pavements

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