Novel Application of Reclaimed Asphalt Pavement in Construction of New Cold Mix Pavements

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

Abstract

In some regions of northwestern Pennsylvania, high-quality aggregate for use in hot mix asphalt (HMA) has been significantly depleted and is not readily available. This shortage has triggered removing high-quality coarse aggregate from reclaimed asphalt pavement (RAP) for use in HMA construction, leaving the fine millings behind. Research was conducted to seek alternatives for use of the remaining fine portion of the RAP. The suitability of using fine millings in construction of cold mix thin overlays, the binder course of new pavements and the main course in low-volume highways was evaluated through a set of laboratory experiments. A range of moisture and emulsion contents were used to prepare cold mix specimens, which were fabricated to represent thin overlays and new pavements. Indirect tensile strength was selected as the principal measure of suitability for the proposed applications. Results suggest that the cold mix thin overlays made with the fine portion of RAP, as well as thicker layers made with a blend of the fine portion of RAP and virgin coarse aggregates, can be effectively used for rehabilitation or new construction. Raveling tests were also conducted, and it was found that the cold mixes with RAP can perform satisfactorily under repetitive traffic loading. Field studies are required to verify the findings from this research.

Original languageEnglish (US)
Title of host publicationAirfield and Highway Pavements 2017
Subtitle of host publicationPavement Innovation and Sustainability - Proceedings of the International Conference on Highway Pavements and Airfield Technology 2017
EditorsImad L. Al-Qadi, Hasan Ozer, Eileen M. Velez-Vega, Scott Murrell
PublisherAmerican Society of Civil Engineers (ASCE)
Pages90-101
Number of pages12
ISBN (Electronic)9780784480946
DOIs
StatePublished - Jan 1 2017
EventInternational Conference on Highway Pavements and Airfield Technology 2017: Pavement Innovation and Sustainability - Philadelphia, United States
Duration: Aug 27 2017Aug 30 2017

Publication series

NameAirfield and Highway Pavements 2017: Pavement Innovation and Sustainability - Proceedings of the International Conference on Highway Pavements and Airfield Technology 2017
Volume2017-August

Other

OtherInternational Conference on Highway Pavements and Airfield Technology 2017: Pavement Innovation and Sustainability
CountryUnited States
CityPhiladelphia
Period8/27/178/30/17

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Barzegari, S., Stoffels, S. M., & Solaimanian, M. (2017). Novel Application of Reclaimed Asphalt Pavement in Construction of New Cold Mix Pavements. In I. L. Al-Qadi, H. Ozer, E. M. Velez-Vega, & S. Murrell (Eds.), Airfield and Highway Pavements 2017: Pavement Innovation and Sustainability - Proceedings of the International Conference on Highway Pavements and Airfield Technology 2017 (pp. 90-101). (Airfield and Highway Pavements 2017: Pavement Innovation and Sustainability - Proceedings of the International Conference on Highway Pavements and Airfield Technology 2017; Vol. 2017-August). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784480946.009