路用降温涂层抗滑性能研究

Research on Anti-sliding Performance of Pavement Cooling Coating

为确定路用降温涂层对沥青路面抗滑性能的影响,制备2种路用降温涂层,并研究其对路表构造深度的影响和不同工况下摆值的变化规律,以及抗滑粒料粘结和抗剥落性能。结果表明:涂抹降温涂层后,路表构造深度明显降低;单一未洒水工况和不同复合工况条件下,2种路用降温涂层抗滑性能良好;洒水条件下,摆值下降至标准限值以下;撒布抗滑粒料可显著提高降温涂层抗滑性能,在洒水条件下仍能满足规范要求;抗滑粒料粘结和抗剥落性能良好;2种降温涂层有较明显降温效果。

In order to determine the influence of pavement cooling coating on the anti-sliding performance of the asphalt pavement,two kinds of pavement cooling coatings were prepared.The influence of pavement cooling coating on the road structure depth and BPN（British Pendulum Number）in different situations was researched.The bonding and spalling resistance of the anti-sliding aggregate was evaluated.The results show that the road structure depth obviously reduces after smearing the pavement cooling coating.There is good anti-sliding performance under the condition of no watering and different compound situations.The BPN drops down under the limitation of standards in the watering situation.Bestrewing anti-sliding aggregate can improve anti-sliding performance obviously;as a result,it can meet the demands of standards in the watering situation.There is good cooling efficacy for the two kinds of pavement cooling coating.