| 吴松,韩森,王康,张琛,姚杨宜,黄可,李杨.疏水防冻路面封层制备与评价方法研究[J].,2019,59(5):518-525 |
| 疏水防冻路面封层制备与评价方法研究 |
| Research on preparation and evaluation method of hydrophobic antifreeze pavement sealing layer |
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| DOI：10.7511/dllgxb201905011 |
| 中文关键词:道路工程疏水剂乳化沥青防冻路面路用性能 |
| 英文关键词:road engineeringhydrophobic agentemulsified asphaltantifreeze pavementroad performance |
| 基金项目:国家自然科学基金资助项目(51578076);中央高校基本科研业务费专项资金资助项目(300102219207). |
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| 中文摘要: |
| 针对我国冬季道路降雪结冰导致交通事故的问题,研究制备了一种疏水防冻路面封层(hydrophobicantifreezepavementsealinglayer,HAPSL).测试水滴滑落时间比较其疏水效果,表征疏水性能;采用层间剪切试验、直接拉拔试验和钢球捶击防覆冰试验比较其降低冰层与路面间黏附力的效果,表征防冻性能.采用车辙试验、低温弯曲蠕变试验、冻融劈裂试验以及铺砂法、摆式摩擦仪(BPT)分别验证稳定性和抗滑性能.结果表明:HAPSL具有较强的疏水及防冰抑冰性能,能够延缓道路结冰,降低冰层与路面间的黏附力;虽然对稳定性和抗滑性能有一定的不利影响,但均满足规范要求,能够确保道路的正常使用.HAPSL 具有实用价值,可为其他疏水路面、自融雪路面的研究和铺筑提供参考. |
| 英文摘要: |
| Aiming at the traffic accident caused by snow and ice in winter roads in China, a hydrophobic antifreeze pavement sealing layer (HAPSL) is prepared. For comparing its hydrophobic effect and characterizing the hydrophobic performance, the water drop slip time experiment is employed. For showing effect of the adhesion between the ice and pavement, and the ice suppression performance, the interlaminar shear test, direct pull-out test and steel ball slamming anti-icing test are employed. For verifying the stability and anti-slip performance, the rutting test, low temperature bending creep test, freeze-thaw split test, sand patching method and pendulum type friction coefficient measuring instrument(BPT) test are employed. The results declare that the HAPSL has strong hydrophobic and anti-icing performance, and can delay the road freezing and reduce the adhesion between ice and pavement. The HAPSL has certain adverse effects on stability and slip resistance, but all meet the requirements of the specification to ensure the common use of the road. The HAPSL can be applied to hydrophobic pavements and might provide reference for research of hydrophobic pavement and self-melting snow pavements. |
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