交通科技
交通科技
교통과기
TRANSPORTATION SCIENCE & TECHNOLOGY
2014年
2期
74-76
,共3页
冻粘强度%覆冰层%载体%冻结时间
凍粘彊度%覆冰層%載體%凍結時間
동점강도%복빙층%재체%동결시간
freezing adhesive strength%cladding ice%the carrier%freeze time
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。
針對目前國內道路鼕季積雪結冰隻能封閉交通或依靠融雪劑的問題,採用試驗的方法,以冰層凍粘彊度為評價指標,結閤不同載體、同一載體不同凍結時間和冰層厚度幾箇不同因素,分析瞭其對冰層凍粘彊度的影響。結果錶明:在同一冰層厚度、相同凍結時間及相同凍結溫度的條件下,以親水性好的水泥混凝土作粘結麵的冰層凍粘彊度要較以憎水性好的橡膠混凝土作粘結麵的冰層凍粘彊度大。而在相同載體的條件下,冰層的凍結時間與厚度對凍粘彊度幾乎沒有影響。從而可以判斷採用憎水性的路麵材料具有減粘、防粘的作用。
침대목전국내도로동계적설결빙지능봉폐교통혹의고융설제적문제,채용시험적방법,이빙층동점강도위평개지표,결합불동재체、동일재체불동동결시간화빙층후도궤개불동인소,분석료기대빙층동점강도적영향。결과표명:재동일빙층후도、상동동결시간급상동동결온도적조건하,이친수성호적수니혼응토작점결면적빙층동점강도요교이증수성호적상효혼응토작점결면적빙층동점강도대。이재상동재체적조건하,빙층적동결시간여후도대동점강도궤호몰유영향。종이가이판단채용증수성적로면재료구유감점、방점적작용。
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.