Integrated sustainability assessment of asphalt rubber pavement based on life cycle analysis

Ruijun Cao, Zhen Leng, Mark Shu Chien Hsu, Huayang Yu, Yangyang Wang

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

This study aims to quantify and compare the life-cycle environmental, economic and social impacts of two pavement materials: namely 10 mm Asphalt Rubber Stone Matrix Asphalt (ARSMA10) and 10 mm Polymer Modified Stone Matrix Asphalt (PMSMA10). To achieve this objective, a comparative sustainability framework was developed by: 1) combining the Life Cycle Assessment (LCA) with pavement maintenance plan developed based on the pavement conditions predicted by the Mechanistic-Empirical Pavement Design Guide (MEPDG) software; 2) examining the additional fuel consumption and emissions based on predicted pavement condition; 3) and integrating the Cost-Benefit Analysis (CBA) to estimate the environmental damage cost and noise reduction benefit. The major findings of this study include: 1) in the 56-year analysis period, the dominant contributions to environmental impact are made by the extra vehicle Greenhouse Gas (GHG) emission and fuel consumption caused by pavement roughness change; 2) PMSMA10 has better environmental performance than ARSMA10 in terms of energy consumption and GHG emissions; 3) the long-term accumulated tire-road noise impact is considerable, which can almost offset its higher economic cost and environmental damage cost assuming ARSMA10 is able to decrease noise by 4%.

Original languageEnglish
Title of host publicationPavement Life-Cycle Assessment - Proceedings of the Pavement Life-cycle Assessment Symposium, 2017
EditorsImad L. Al-Qadi, Hasan Ozer, John Harvey
PublisherCRC Press/Balkema
Pages199-209
Number of pages11
ISBN (Print)9781138066052
DOIs
Publication statusPublished - 1 Jan 2017
EventSymposium on Life-Cycle Assessment of Pavements, Pavement LCA 2017 - Champaign, United States
Duration: 12 Apr 201713 Apr 2017

Publication series

NamePavement Life-Cycle Assessment - Proceedings of the Pavement Life-cycle Assessment Symposium, 2017

Conference

ConferenceSymposium on Life-Cycle Assessment of Pavements, Pavement LCA 2017
CountryUnited States
CityChampaign
Period12/04/1713/04/17

ASJC Scopus subject areas

  • Building and Construction
  • Civil and Structural Engineering

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