A kind of asphalt with anti-icing function prepared from salt-storage sludge particles

Abstract

The invention discloses an asphalt with anti-icing function prepared by using salt-storage sludge particles. ~96.5 parts, coupling agent 0.5~1 part. The invention also discloses a salt-storage sludge particle for preparing asphalt with anti-icing function, which is a solid waste produced by neutralizing the acidic and alkaline waste water produced in the preparation of rare earth chloride by the alkaline process. It is obtained by pressing the cake, filtering, drying and grinding. The preparation method of the asphalt with anti-icing function of the present invention is simple, can greatly reduce the amount of sodium chloride used in traditional salt spraying and deicing, and at the same time realize the resource utilization, high value and reduction treatment of sludge, Promote the sustainable development of industry and the development of circular economy. Further experiments have confirmed that the anti-icing asphalt of the present invention has an anti-icing effect on supercooled water droplets on the surface in the temperature range of 0°C to -10°C, and has a long-term anti-icing effect.

Description

technical field [0001] The invention relates to an asphalt with an anti-icing function, in particular to an asphalt with an anti-icing function prepared by using salt-storing sludge particles, and belongs to the technical field of road surface engineering materials. Background technique [0002] In winter and special cold weather conditions, snow and ice will form on the road surface. On the one hand, it will lead to a decrease in the anti-skid ability of the road surface, a decrease in the friction coefficient between the vehicle tires and the road surface, and a decrease in adhesion. On the other hand, traffic accidents lead to road congestion and even traffic interruption, which brings great inconvenience to transportation. [0003] There have been reports on anti-icing asphalt materials at home and abroad. For example, the Chinese patent application number 201510060163.3 discloses a preparation method of anti-icing asphalt. Self-made anti-icing fillers and quartz powder ...

AI Technical Summary

Problems solved by technology

However, the research and development of anti-icing agents for existing asphalt materials mainly considers the surface coating of chloride salts and the controlled release treatment of porous media, which involves complex physical and chemical processes, which is not conducive to large-scale production and application

According to literature search, there is no report on the anti-icing function of asphalt prepared by using the solid waste produced by the rare earth industry-salt storage sludge particles to greatly reduce the amount of sodium chloride in traditional salting and deicing.

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