中文摘要：

为研究胶粉改性沥青混合料与SBS改性沥青混合料路面的降噪效果,利用AWA6270型声级仪进行噪声检测,通过对轻重两种车型在不同车速下的整车噪声检测、车室内噪声检测、怠速下噪声检测3个实验的结果进行分析,结果表明：噪声声级随着车速的增加而增加,且轻型轿车的噪声声级与车速呈线性关系;2种车型的整车噪声最大,其次是怠速噪声,最弱的是车内噪声;胶粉改性沥青路面在降噪方面的性能优于SBS改性沥青路面,尤其是对怠速状态下行驶的汽车。

英文摘要：

In order to study the effect of noise reduction about mixture pavement of rubber powder modified asphalt and SBS modified asphalt pavement,sound level meter-AWA6270 was using for noise detection.Based on the analysis of noise detection,vehicle interior noise detection and idle noise detection under different automobiles and different speed,result shows that：noise level increases with the speed,and that of light cars increases linearly;noise of whole automobiles is the largest,the next is idle noise;rubber modified asphalt pavement performance is better than SBS modified asphalt in noise reduction especially for the automobiles with idle noise.