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Appl. Sci. 2017, 7(11), 1123; doi:10.3390/app7111123

Tire-Pavement Friction Characteristics with Elastic Properties of Asphalt Pavements

1,2,* , 3,* , 1
and
1
1
National and Regional Engineering Lab for Transportation Construction Materials, College of Civil Engineering, Chongqing Jiaotong University, 66 Xuefu Ave, Nanan Qu, Chongqing 400074, China
2
Highway School, Chang’an University, Middle-Section of Nan’er Huan Road, Xi’an 710064, China
3
Chongqing Jianzhu College, 857 Lihua Ave, Nanan Qu, Chongqing 400072, China
*
Authors to whom correspondence should be addressed.
Received: 16 September 2017 / Revised: 26 October 2017 / Accepted: 26 October 2017 / Published: 1 November 2017
(This article belongs to the Special Issue Advanced Asphalt Materials and Paving Technologies)
View Full-Text   |   Download PDF [6111 KB, uploaded 1 November 2017]   |  

Abstract

The skid-resisting performance of pavement is a critical factor in traffic safety. Recent studies primarily analyze this behavior by examining the macro or micro texture of the pavement. It is inevitable that skid-resistance declines with time because the texture of pavement deteriorates throughout its service life. The primary objective of this paper is to evaluate the use of different asphalt pavements, varying in resilience, to optimize braking performance on pavement. Based on the systematic dynamics of tire-pavement contact, and analysis of the tire-road coupled friction mechanism and the effect of enlarging the tire-pavement contact area, road skid resistance was investigated by altering the elastic modulus of asphalt pavement. First, this research constructed the kinetic contact model to simulate tire-pavement friction. Next, the following aspects of contact behaviors were studied when braking: tread deformation in the tangential pavement interface, actual tire-pavement contact in the course, and the frictional braking force transmitted from the pavement to the tires. It was observed that with improvements in pavement elasticity, the actual tire-pavement contact area increased, which gives us the ability to effectively strengthen the frictional adhesion of the tire to the pavement. It should not be overlooked that the improvement in skid resistance was caused by an increase in pavement elasticity. This research approach provides a theoretical basis and design reference for the anti-skid research of asphalt pavements. View Full-Text
Keywords: skid-resistance; asphalt pavement; tire; friction; contact area; braking force coefficient skid-resistance; asphalt pavement; tire; friction; contact area; braking force coefficient
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Yu, M.; Wu, G.; Kong, L.; Tang, Y. Tire-Pavement Friction Characteristics with Elastic Properties of Asphalt Pavements. Appl. Sci. 2017, 7, 1123.

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