Evaluation of rutting and friction resistance of hot mix asphalt concrete using an innovative vertically loaded wheel tester

Shuguang Hou, Xijun Shi*, Yong Deng, Fan Gu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

HMA's rutting characteristics and friction properties play vital roles in defining pavement structural functions and driving safety. This paper developed a novel vertically loaded wheel tester which can uniquely evaluate the rutting potential and friction resistance of eight multi-layer specimens with one experimental set-up. In this study, the rutting and friction resistance with loading cycles for four types of two-layer structures with different mixture combinations were experimentally determined. According to the results, the structures made with the AC-20 mixture as the bottom layer had significantly lower rutting depths; this infers the bottom layer properties have a more pronounced impact on the rutting resistance of the two-layer structure. For the friction resistance, the property of the top layer is more relevant the structure's friction resistance, so use of the SMA-13 mixture in the top layer is favorable. The developed test method was validated with the simulation results using the Pavement ME.

Original languageEnglish
Pages (from-to)710-719
Number of pages10
JournalConstruction and Building Materials
Volume176
Early online date16 May 2018
DOIs
Publication statusPublished - 10 Jul 2018

Keywords

  • Friction coefficient
  • Hot mix asphalt
  • Loaded wheel tester
  • Rutting

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