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

A technology of cold recycled mixture and emulsified asphalt, which is applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effects of easy availability of ingredients, reduction of permanent deformation diseases, and wide sources of materials

CN109748538AInactive Publication Date: 2019-05-14SHANDONG JIANZHU UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-14
Estimated Expiration
Not applicable · inactive patent

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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.
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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...

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Embodiment Construction

[0033] The present invention is further described in conjunction with specific embodiments. The described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0034] The raw materials used in this embodiment are: recycled asphalt pavement material is a certain highway milling material in Shandong, stone chips and cement all meet the requirements of "Technical Specifications for Construction of Highway Asphalt Pavement" (JTG F40-2004), and the prepared emulsified The asphalt is cationic emulsified asphalt, and its various technologies meet the requirements of "Technical Specifications for Recycling of Highway Asphalt Pav...