Research on the Attenuation Law of Anti-skid Performance of Asphalt Pavement and Improvement Measures
In order to improve the anti-skid performance of asphalt pavement,the influence of abrasion times on the anti-skid performance of different asphalt pavement is analyzed,the attenuation law model of anti-skid performance of asphalt pavement is constructed,and the preventive maintenance of pavement is put forward by using the anti-skid fog sealing layer.The results show that:in the early stage of abrasion,the BPN of asphalt pavement decreases rapidly,and the BPN attenuation amplitude gradually decreases and tends to be stable with the increase of abrasion times.The nonlinear exponential anti-skid model can accurately predict the attenuation law of BPN with the increase of abrasion times.The type of anti-skid particles,the mixing amount and the amount of cementing material have significant effects on the effect of anti-skid fog sealing layer,and it is recommended that the anti-skid particles should be selected with corundum with the mixing amount of 0.396kg/m2 and the amount of cementing material of 0.675kg/m2.
Asphalt pavementAnti-skid performanceAttenuation modelAnti-skid fog sealing layerPreventative maintenance