Waterproof and anti-freezing structure for drainage asphalt pavement

Abstract

The utility model relates to road surface waterproof technology field, and disclose a kind of waterproof anti-freezing structure for drainage asphalt pavement, the two sides of subbase are fixedly installed with side wing base layer, the top of subbase is fixedly installed with anti-freezing and sticking layer, the top of anti-freezing and sticking layer is fixedly installed with drainage permeation layer. Through anti-freezing and sticking layer and drainage permeation layer inclination design, it is helpful to rainwater to the both sides of road drainage, and drainage is carried out by pipeline, ensure that rainwater cannot be accumulated;And anti-freezing and sticking layer is composed of rubber asphalt layer, SBS modified asphalt layer, gravel layer and slow-release type snow-melting agent particle mixture. Slow release of snow-melting agent absorbed by porous rubber particle by surface treatment, continuously inhibit pavement icing, frost heaving damage rate reduces more than 40%;Porous rubber particle has sound-absorbing and noise-reducing function, reduces road surface noise;To improve the utilization rate of waste tire, reduce resource waste;Reduce the dosage of snow-melting agent, reduce environmental pollution.

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