Self-stress pavement and phase change material mixed pavement ice melting system and construction method

Abstract

The invention belongs to the technical field of road snow melting and deicing, and particularly relates to a self-stress pavement and phase-change material mixed pavement ice melting system and a construction method, and the self-stress pavement and phase-change material mixed pavement ice melting system comprises an asphalt concrete road structure, a rubber asphalt concrete layer and a phase-change material functional layer; the rubber asphalt concrete layer is laid on the upper surface of the phase change functional layer; and the phase change functional layer is arranged between the asphalt concrete road structure and the rubber asphalt concrete layer. According to the ice melting system for the self-stress pavement and the phase-change material mixed pavement and the construction method, the snow melting and ice melting effects can be effectively ensured, the pavement ice can be crushed, and environmental protection and energy conservation are achieved.

Description

technical field [0001] The invention relates to the field of road snow melting and ice melting, in particular to a self-stress road surface and phase change material mixed road surface ice melting system and construction method. Background technique [0002] In winter, about 60% of the highways in our country have snow and ice phenomena. According to the survey, traffic accidents caused by snow on the roads in winter reach 15%-30%, especially the entrances and exits of highway toll stations, airport runways, and tunnels. Import and export, bridge deck pavement, road curves and longitudinal slopes and other special road sections. Therefore, snow melting and ice melting technology is of great significance in reducing road maintenance costs, prolonging the service life of roads, and increasing road safety. [0003] At present, there are mainly four ways for road deicing. 1) Manual or mechanical removal of ice accumulation will consume a lot of labor and the efficiency is very l...

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Problems solved by technology

[0003] At present, there are four main methods of road deicing. 1) Manual or mechanical removal of ice will consume a lot of labor and the efficiency is very low.

2) Use deicing agent to accelerate the melting of ice and snow, generally all is to sprinkle salt on the road, but common chlorine salt can produce certain pollution to the environment, and the service life of road can reduce 50% after chlorine salt treatment, and this causes economic harm Although the traditional environment-friendly deicing agent MG-104, calcium magnesium acetate, potassium acetate and urea have relatively little corrosion and impact on the surrounding environment of the road and the auxiliary structure of the road, the cost of melting snow is high and the efficiency low

3) The heating cable is heated and melted, the power required to melt ice and snow is too large, the melting efficiency is relatively too small, the service life is short, and the heating temperature has a great influence on the asphalt pavement

[0004] 4) Self-stress ice-breaking method. This method is mainly aimed at rough roads or roads paved with elastic rubber. The method of increasing the load is used to break the ice and snow on the road surface. However, the ice-breaking effect of this method drops significantly below minus 4°C. The ice-breaking effect is almost lost below ℃

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