Flexible rubber emulsified asphalt cold in-place recycling mixture and preparation method thereof

Abstract

The invention provides a flexible rubber emulsified asphalt cold in-place recycling mixture and a preparation method thereof. A flexible rubber emulsified asphalt cold in-place recycling mixture product is prepared by uniformly stirring emulsified asphalt, a recycled asphalt pavement material (RAP), macadam, water, cement and rubber power in a certain blending proportion. The flexible rubber emulsified asphalt cold in-place recycling mixture provided by the invention is simple and easily available in component, is green and environment-friendly by using waste rubber tires and asphalt pavementrecovered materials, and solves the problem of reuse of waste materials. Meanwhile, the mixture provided by the invention has relatively high strength and pavement performance. By adding the rubber powder, high- and low-temperature performance and fatigue performance of the emulsified asphalt cold in-place recycling mixture are improved obviously, the flexibility of a conventional emulsified asphalt cold in-place recycling mixture is improved, and the fragility problem of the conventional mixture is solved.

Description

technical field [0001] The invention belongs to the field of recovery and regeneration of waste materials on highways and urban roads, and in particular relates to a flexible rubber emulsified asphalt cold regeneration mixture and a preparation method thereof. Background technique [0002] With the continuous development of highway construction and the formation of highways and national and provincial trunk line networks, the tasks of highway maintenance and repair have become increasingly arduous. The recycling of waste materials is one of the most innovative and economically valuable technologies in recent years. Actively promoting cold recycling technology of emulsified asphalt and adopting economical and effective regeneration maintenance methods according to local conditions have become urgent requirements of highway maintenance management departments. During the overhaul process, emulsified asphalt cold recycled mixture is selected as the flexible material layer, whic...

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, the present invention provides a flexible rubber emulsified asphalt cold recycled mixture and its preparation method. This new type of green mixture can overcome the deficiencies of the existing technology, solve the problems encountered in the project, and at the same time respond to the national green road call , make full use of waste tire rubber powder

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