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[1] Ma Hui, Yang Ruochong, Qian Shunzhi,. Research on asphalt concrete pavement deicing technology [J]. Journal of Southeast University (English Edition), 2014, 30 (3): 336-342. [doi:10.3969/j.issn.1003-7985.2014.03.015]
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Research on asphalt concrete pavement deicing technology()
沥青路面除冰雪技术研究
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
30
Issue:
2014 3
Page:
336-342
Research Field:
Traffic and Transportation Engineering
Publishing date:
2014-09-30

Info

Title:
Research on asphalt concrete pavement deicing technology
沥青路面除冰雪技术研究
Author(s):
Ma Hui Yang Ruochong Qian Shunzhi
School of Transportation, Southeast University, Nanjing 210096, China
马辉 杨若冲 钱吮智
东南大学交通学院, 南京 210096
Keywords:
deicing hydrophobic admixture surface coating cohesive force durability
除冰雪 有机硅憎水剂 表面涂层 黏结力 耐久性
PACS:
U421.4
DOI:
10.3969/j.issn.1003-7985.2014.03.015
Abstract:
In order to reduce the cohesive force between pavement and ice, the approach of pavement surface coating with hydrophobic admixtures is investigated. The deicing effect of this approach is examined by the contact angle test and the shear test. The durability of the approach is examined by the accelerated abrasion test, and the skid resistance of the pavement with surface coating is examined by the British pendulum test and the surface texture depth test. In the contact angle test, the contact angle between hydrophobic admixture and water is 100.2°. In the shear test, the maximum shear stress is 0.06 MPa for the specimen coated with hydrophobic admixture, which is much lower than that of the specimen without hydrophobic admixture coating, 3.5 MPa. Furth-ermore, the ice and asphalt surface are completely separated for the coated specimen while not for the uncoated specimen. Based on the accelerated abrasion test, the residual hydro-phobic admixture in the veins of the pavement after abrasion still has a deicing effect. From the skid resistance tests, the British pendulum number(BPN)and the texture depth(TD)of the specimen coated with hydrophobic admixtures are larger than those of the standard requirements. The overall experi-mental observation indicates that the approach can effectively reduce close contact between asphalt pavement and ice; therefore, it can be a promising solution to road icing problems in winter.
为降低路面和冰雪之间的黏结力, 用有机硅憎水材料作为道路表面涂层.有机硅憎水涂层技术的除冰效果用接触角实验和剪切实验来表征, 其耐久性用加速加载磨耗实验来评价, 而其抗滑性能则用摆式摩擦法和铺砂法来评价.接触角实验结果表明, 有机硅憎水涂层材料与水的接触角为100.2°, 具有很好的憎水性能.其次, 通过剪切实验可以得出: 在涂有有机硅憎水材料的情况下, 冰层与试件表面的最大剪切应力仅为0.06 MPa, 低于没有进行表面涂层处理的最大剪切力3.5 MPa;剪切之后, 冰层能够很完整地从试件表面脱落.加速加载磨耗实验表明, 在经过一定时间的磨耗之后, 残留在沥青路面构造深度里的有机硅涂层材料仍然具有除冰雪的效果.表面涂层后的道路表面的BPN值和构造深度值均有所降低, 但是其仍然远远大于规范的要求, 确保了安全性.研究表明, 沥青道路表面涂层技术能有效地降低沥青路面与冰层的黏结, 从而解决冬季道路结冰影响行车安全的问题.

References:

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Memo

Memo:
Biographies: Ma Hui(1987—), male, graduate; Qian Shunzhi(corresponding author), male, doctor, professor, zephyor@gmail.com.
Citation: Ma Hui, Yang Ruochong, Qian Shunzhi. Research on asphalt concrete pavement deicing technology[J].Journal of Southeast University(English Edition), 2014, 30(3):336-342.[doi:10.3969/j.issn.1003-7985.2014.03.015]
Last Update: 2014-09-20