雨水对蓄盐沥青路面自融冰性能影响研究

发布时间：2018-04-26 13:35

本文选题：沥青路面 + 融冰剂　；参考：《武汉理工大学学报》2015年02期

【摘要】：通过测试水浸泡前后蓄盐沥青混凝土表面结冰点、冰层粘附力以及浸泡液的电导率,研究了雨水对蓄盐沥青路面自融冰性能影响。结果表明:经水浸泡后蓄盐沥青混凝土的表面结冰点升高、与冰层之间的粘附力增大,其中内掺纯氯化钠的沥青混凝土在浸泡8h后,其表面结冰点及其与冰层粘附力已与普通沥青混凝土相近,而内掺包覆氯化钠融冰剂的沥青混凝土还具有一定的自融冰性能。浸泡液电导率测试表明,内掺6%纯氯化钠的蓄盐沥青混凝土和内掺6%包覆氯化钠融冰剂的蓄盐沥青混凝土浸泡4h后,氯化钠析出量分别为42.70g/m2和17.23g/m2。氯化钠经包覆处理后,减少了其从沥青混凝土中溶出量,但溶出的氯化钠仍对沥青混凝土和环境有一定的影响。
[Abstract]:The effect of Rain Water on the self-melting ice performance of salt storage asphalt pavement was studied by testing the surface icing point, the adhesion of ice layer and the conductivity of immersion solution before and after water immersion. The results show that the surface freezing point of salt storage asphalt concrete increases after immersion in water, and the adhesion between the concrete and the ice layer increases, and the asphalt concrete with pure sodium chloride is immersed in the concrete for 8 hours. The surface freezing point and its adhesion to ice layer are close to those of ordinary asphalt concrete, but the asphalt concrete with sodium chloride icing agent also has some self-melting ice properties. The electrical conductivity test of immersion solution shows that the precipitation of sodium chloride is 42.70g/m2 and 17.23 g / m ~ (2), respectively, after being soaked in 6% pure sodium chloride concrete and 6% salt storage asphalt concrete coated with 6% sodium chloride melt ice agent for 4 h. The leaching amount of sodium chloride from asphalt concrete was reduced after the coating treatment, but the dissolved sodium chloride still had some influence on asphalt concrete and environment.
【作者单位】：武汉理工大学硅酸盐建筑材料国家重点实验室;交通运输部公路科学研究所;
【基金】：交通运输部科技项目(2013318800020) 中央高校基本科研业务专项基金(145201016)
【分类号】：U416.217;U418.41

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