Falling Weight Deflectometer Testing Based Mechanistic-Empirical Overlay Thickness Design Approach for Low-Volume Roads in Illinois

P. Sarker, E. Tutumluer

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

Abstract

A recent Illinois Center for Transportation (ICT) research project at the University of Illinois has aimed at evaluating the use of falling weight deflectometer in the assessment of structural conditions of in-service low volume roads that are in need of rehabilitation. Ten different pavement sections were selected from four counties in Illinois with varying structural and traffic characteristics to conduct falling weight deflectometer (FWD) tests. A neural-network based pavement analyzer, ANN-Pro, previously developed at the University of Illinois at Urbana-Champaign based on ILLI-PAVE finite element program solutions, was used to analyze the FWD data in order to determine and monitor the structural adequacies of existing pavement sections. This paper presents a new mechanistic-empirical (M-E) overlay design method that was introduced as part of the ICT research project to adequately assess the structural conditions of existing pavements and subsequently recommend required overlay thickness values from critical pavement responses computed from FWD field deflections. The M-E overlay design methodology compares the critical pavement responses to threshold values for the pre-established fatigue and/or rutting damage algorithms.

Original languageEnglish (US)
Title of host publicationInternational Conference on Transportation and Development 2016
Subtitle of host publicationProjects and Practices for Prosperity - Proceedings of the 2016 International Conference on Transportation and Development
EditorsKelvin C. P. Wang
PublisherAmerican Society of Civil Engineers (ASCE)
Pages920-931
Number of pages12
ISBN (Electronic)9780784479926
DOIs
StatePublished - Jan 1 2016
EventInternational Conference on Transportation and Development 2016: Projects and Practices for Prosperity - Houston, United States
Duration: Jun 26 2016Jun 29 2016

Publication series

NameInternational Conference on Transportation and Development 2016: Projects and Practices for Prosperity - Proceedings of the 2016 International Conference on Transportation and Development

Other

OtherInternational Conference on Transportation and Development 2016: Projects and Practices for Prosperity
CountryUnited States
CityHouston
Period6/26/166/29/16

ASJC Scopus subject areas

  • Transportation
  • Civil and Structural Engineering
  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality
  • Geography, Planning and Development

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  • Cite this

    Sarker, P., & Tutumluer, E. (2016). Falling Weight Deflectometer Testing Based Mechanistic-Empirical Overlay Thickness Design Approach for Low-Volume Roads in Illinois. In K. C. P. Wang (Ed.), International Conference on Transportation and Development 2016: Projects and Practices for Prosperity - Proceedings of the 2016 International Conference on Transportation and Development (pp. 920-931). (International Conference on Transportation and Development 2016: Projects and Practices for Prosperity - Proceedings of the 2016 International Conference on Transportation and Development). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784479926.083