[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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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

Author(s):

Ma Hui;  Yang Ruochong;  Qian Shunzhi

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

deicing;  hydrophobic admixture;  surface coating;  cohesive force;  durability

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.

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]

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