Rutting potential of thin and durable asphalt wearing courses: Laboratory prediction and field performance

Songsu Son, Imad L Al-Qadi, Thomas G. Zehr

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Alternative asphalt concrete (AC) mixtures have been developed to provide thin, durable, efficient, and cost-effective wearing courses. A combination of locally available and durable aggregates, such as steel slag and quartzite, were used to enhance the performance of the mixes while ensuring cost effectiveness. In addition, fibers were used in a new mixture for potential reduction in the AC layer thickness due to the increase in its tensile strength. In addition, several innovative approaches to develop new AC mixtures were also introduced and evaluated. Four new AC mixtures and two control mixtures were placed in the Chicago area to evaluate their field performance under real traffic loading. This paper focuses on the permanent deformation of the newly developed AC mixtures and presents their rutting potential based on laboratory testing and their short-term rutting performance in the field. Wheel tracking testing was conducted on each AC mixture. The specimens were prepared using two mixing approaches: lab-mixed and lab-compacted specimens and plant-mixed and lab-compacted specimens. A dipstick was used to measure rut depth in the field every four months after construction. To evaluate the effect of layer thickness on measured permanent deformation, two sections having different layer thicknesses were constructed for each AC mixture. This paper presents the difference in rutting potential based on laboratory testing and field measurement for the newly developed wearing surface AC mixtures and the effect of layer thickness on rutting development.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavement 2013
Subtitle of host publicationSustainable and Efficient Pavements - Proceedings of the 2013 Airfield and Highway Pavement Conference
Pages1240-1253
Number of pages14
DOIs
StatePublished - 2013
Event2013 Airfield and Highway Pavement Conference: Sustainable and Efficient Pavements - Los Angeles, CA, United States
Duration: Jun 9 2013Jun 12 2013

Other

Other2013 Airfield and Highway Pavement Conference: Sustainable and Efficient Pavements
CountryUnited States
CityLos Angeles, CA
Period6/9/136/12/13

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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    Son, S., Al-Qadi, I. L., & Zehr, T. G. (2013). Rutting potential of thin and durable asphalt wearing courses: Laboratory prediction and field performance. In Airfield and Highway Pavement 2013: Sustainable and Efficient Pavements - Proceedings of the 2013 Airfield and Highway Pavement Conference (pp. 1240-1253) https://doi.org/10.1061/9780784413005.105