Performance evaluation of high-elastic asphalt mixture containing deicing agent Mafilon
Performance evaluation of high-elastic asphalt mixture containing deicing agent Mafilon
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含除冰剂Mafilon的高弹沥青混合料性能评价
DOI：
10.1016/j.conbuildmat.2015.07.064
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发表时间：
2015-09-30
影响因子：
7.4
通讯作者：
Yang, Xu
中科院分区：
文献类型：
--
作者：
Luo, Sang;Yang, Xu
冬季路面积雪、结冰会降低轮胎与路面之间的抗滑性能，造成行车安全问题。为提高融雪除冰性能和沥青路面的使用性能，采用掺有融雪除冰剂MFL的高弹性沥青（HEA）混合料。通过在常规的SBS改性沥青中加入高弹性改性剂，制备了高弹性沥青。通过用MFL取代常规沥青混合料中70%的矿物填料，制备了含MFL的沥青混合料。对常规SBS沥青混合料、含MFL的SBS沥青混合料（SBS-MFL）和含MFL的HEA-MFL沥青混合料（HEA-MFL）进行了对比研究。对路面功能性能和融雪除冰性能进行了评价。通过动稳定性试验、三点梁弯曲试验和抗拉强度比试验，对沥青混合料的抗车辙性能、低温性能和抗水损害性能进行了评价。通过室外融雪观测，对融雪性能进行了评价。通过海绵升力试验和混合物-冰粘结剪切强度试验评价了其除冰性能。试验结果表明，SBS-MFL混合料的抗车辙性能、低温抗裂性能和抗水损害性能均低于普通SBS混合料。然而，HEA-MFL混合料显示出显着更好的抗车辙能力和低温性能比普通SBS混合料，只有略弱的抗水损害。在融雪/除冰性能方面，HEA-MFL混合物表现出更高的融雪速度和更低的混合物-冰粘结强度，比常规SBS混合物好得多。研究结果表明，HEA-MFL混合料具有很大的潜力，可应用于沥青路面的性能改善和融雪/除冰的目的。(C)2015爱思唯尔有限公司版权所有。
Snow and ice on pavement surface in winter cause traffic safety issues due to the reduced skid resistance between tires and pavement surface. This study applies a high-elastic asphalt (HEA) mixture containing deicing agent Mafilon (MFL) to improve the snowmelt/deicing performance and the functional performance of asphalt pavement. The HEA was produced by adding a high-elastic modifier to the regular styrene-butadiene-styrene (SBS) modified asphalt. The asphalt mixtures containing MFL were produced by replacing 70% of the mineral fillers in regular asphalt mixture with MFL. Three types of asphalt mixtures were investigated to make a comparison study: the regular SBS asphalt mixture, SBS asphalt mixture containing MFL (SBS-MFL), and the HEA mixture containing MFL (HEA-MFL). The pavement functional performance and snowmelt/deicing performance were evaluated. The functional performance covered the rutting resistance, low temperature performance, and moisture damage resistance, which were evaluated through the dynamic stability test, three point beam bending test, and tensile strength ratio test, respectively. The snowmelt performance was evaluated through an outdoor snow melting observation and measurement. The deicing performance was evaluated through a sponge lift test and a mixture-ice bond shear strength test. The experimental results showed that the SBS-MFL mixture performed weaker than the regular SBS mixture in rutting resistance, low temperature cracking resistance, and moisture damage resistance. However, the HEA-MFL mixture showed remarkably better rutting resistance and low temperature performance than the regular SBS mixture, with only a slightly weaker moisture damage resistance. In terms of the snowmelt/deicing performance, the HEA-MFL mixture performed much better than the regular SBS mixture regards of the higher snow melting speed and lower mixture-ice bond strength. The findings in this study indicate that the HEA-MFL mixture has a great potential to be applied in asphalt pavement for the purposes of performance improving and snowmelt/deicing. (C) 2015 Elsevier Ltd. All rights reserved.