不同纹理水泥混凝土路面降噪与抗滑特性

Skid-resistance and Denoising Properties of Cement Concrete Pavement with Different Surface Texture

采用新型隔离风噪的路面-轮胎噪声测试方法和横向摩擦力系数测定车对不同纹理构造的路面进行噪声和抗滑性能测试,分析了不同纹理构造路面的抗滑降噪机理。结果证明通过对噪声测试设备的改进,可以有效的排除外界噪声的干扰,保证噪声试验数据的准确性。此外,通过改善水泥混凝土路面常用纹理,可以达到降低路面噪声且提高路面抗滑能力的目的。多孔水泥混凝土路面、露石水泥混凝土路面和纵向刻槽路面噪声值与沥青路面相当,并且具有良好的抗滑性能。

By using an improved road/tyre noise test method with windscreen and lateral skid-resistance test vehicle, we tested the noise and skid-resistance property of different pavement surface texture, and also analysed the skid-resistance and denoising mechanism of different surface texture. It proved that （ 1 ） we can effectively exclude the interference of outside noise, and ensure the accuracy of noise test data by improving noise test equipment; （2） we can reduce road/tyre noise of cement concrete pavement and increase skid- resistance property by improving conventional surface texture; （3） the noise values of porous cement concrete pavement, exposed aggregate cement concrete pavement and longitudinal grooved pavement are equivalent to that of asphalt pavement, and they has good skid-resistance property.