Impact of different extraction recovery method on allowable percentage of Reclaimed Asphalt Pavement (RAP)

Prashant Shirodkar, Khyati Sonpal, Yusuf Mehta, Aaron Nolan, Alan Norton, Christopher Tomlinson

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

1 Scopus citations

Abstract

The objective of this paper is to capture variability from different extraction and recovery procedures. In recent years, state agencies emphasize on grading plants depending upon their RAP stockpile variability. Depending upon this grading of the plants, maximum allowable percentage of RAP for the plants will be determined. The recent NCHRP 9-33 manual "Mix design manual for Hot Mix Asphalt" gives procedure to determine RAP stockpile variability. The different extraction and recovery methods give different allowable percentage of RAP. This paper evaluates impact of different extraction recovery procedure on RAP binder property and allowable percentage of RAP which is determined by considering RAP aggregate gradation and RAP binder content. Selection of appropriate combination of extraction recovery method will not only grade the plant on uniform basis but also lead to more precise determination of allowable percentage of RAP.

Original languageEnglish (US)
Title of host publicationPaving Materials and Pavement Analysis - Proceedings of the 2010 GeoShanghai International Conference
Pages75-81
Number of pages7
Edition203 GSP
DOIs
StatePublished - Sep 6 2010
Event2010 GeoShanghai International Conference - Paving Materials and Pavement Analysis - Shanghai, China
Duration: Jun 3 2010Jun 5 2010

Other

Other2010 GeoShanghai International Conference - Paving Materials and Pavement Analysis
CountryChina
CityShanghai
Period6/3/106/5/10

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology

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