Research On Material Performance Of Low Noise Road Surface In Cold Area

Along with the development that city turn, the city pavement is becoming one stereoscopic space transportation system that is perfect gradually. At the same time convenient, the transportation system brings some troubles to people also. The network density enlarges increasingly, the transportation discharge increases continuously, so the noise endangers to aggravate increasingly. Currently, most cities adopt a natural cover or soundproof walls to reduce the noise, but a natural cover or soundproof wall costs are high, and affect the city beauty. So it is a popular task for low noise road. The low noise road surface have high void rate, its advantage is reduce city noise. At the same time, it can defend to splash the water, defend the reflection and strengthen the pavement adhesive strength etc. Currently, it is international to have already extensively launched the application study that low noise road surface, the trial road is also the mostly concentrated in southern of our country, the low noise road surface in high and cold region is still thin. The paper according to the weather characteristics of the north, and the paper research porous asphalt mixture and its performance.The paper introduced for the choice and requests of material that the cold area pave the asphalt road surface of low noise, and based on the foundation of the abroad research result, experiment of the adjust continuously, finally made sure the match of the various classes and summing-up to the method that the dosage of asphalt, and check up the performance of low noise road surface. Finally, based on the abroad research, the paper put forward some suggestions about the construction technique that low noise road surface and protect to maintain.