不同因素对路表冰层冻粘强度的影响分析

Research on Road Frozen Ice Adhesive Strength

针对目前国内道路冬季积雪结冰只能封闭交通或依靠融雪剂的问题,采用试验的方法,以冰层冻粘强度为评价指标,结合不同载体、同一载体不同冻结时间和冰层厚度几个不同因素,分析了其对冰层冻粘强度的影响。结果表明:在同一冰层厚度、相同冻结时间及相同冻结温度的条件下,以亲水性好的水泥混凝土作粘结面的冰层冻粘强度要较以憎水性好的橡胶混凝土作粘结面的冰层冻粘强度大。而在相同载体的条件下,冰层的冻结时间与厚度对冻粘强度几乎没有影响。从而可以判断采用憎水性的路面材料具有减粘、防粘的作用。

In winter,traffic is always affected by the snow and ice on the road.And this problem can only be solved by closing the traffic or using snow melting agent .In this paper,the freezing adhesive strength between the ice and the road surface was measured and investigated.The influences of differ-ent carrier,freezing time and thickness of the ice on the freezing adhesive strength were observed. The test results showed that the cement concrete with good hydrophilicity has higher freezing adhesive strength ,compared to the rubber concrete with good hydrophobicity when the ice thickness ,freezing time and temperature were same.It was also found that the freezing time and the ice thickness had al-most no influence on freezing adhesive strength for each type of carrier.Therefore,it can be conclu-ded that the pavement material with hydrophobic is effective for reducing the adhesion between the ice and road surface.This finding can provide a guidance for solving the problem of ice accumulating on the highway.