| With the rapid development of China’s economy,as the socio-economic progress of security,road transport services have also made remarkable achievements,the objective of the national road maintenance work to put forward higher requirements.In this situation,micro-surfacing technology for its well-skid,waterproof performance and speed of construction,environmental protection and many other advantages,in the country has been rapidly promoted and applied.But one road noise problem is to restrict the micro-surfacing technology development a major bottleneck problem,the larger the car,the car outside noise affects driving comfort and safety.For more in-depth understanding of micro-surfacing road noise causes,the paper analyzes the mechanism of tire/road noise,car noise on the useful life of different micro-surfacing,the car outside noise conducted a survey to analyze the noise and service life,the depth of the relationship between structure,noting that the road surface texture way constitute micro-surfacing the road leading to the interior of the main reasons noisy,and accordingly to the division level with the existing micro table were studied,based on Sandberg/Descorne model low-noise micro-surfacing division level with range,by laboratory test performance was evaluated using the road.Pavement construction process is the texture characteristics of micro-surfacing of another one of the main factors,the paper combined with Hunan Yuelu Road,Venus Road paved low-noise micro-surfacing road experiments were studied construction technology,proposed low Key Construction noise micro-surfacing technology,increasing the rolling process of construction of micro-surfacing,clear the construction quality micro-surfacing low noise control method,by way of follow-up observations of the test findings,the present paper presents a low-noise micro-surfacing technology has Good noise reduction effect,compared with the traditional micro-surfacing vehicle noise reduction 2-3dB,also has good road performance。... |
