Mechanistic Assessment of Layered Pavement Foundation System Using Validated Intelligent Compaction Measurements

David J. White, Pavana Vennapusa, Erol Tutumluer, Maziar Moaveni

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

Abstract

Assessment of pavement foundation layer in situ using mechanistic parameters such as stress-dependent resilient modulus can provide a validation of the input parameters assumed during pavement design. In this paper, results from a recent field study on the Illinois Tollway Elgin O'Hare Expressway construction project is presented. The project involved developing geospatially referenced validated intelligent compaction (VIC) measurements through a field calibration process using automated cyclic plate load testing, which produced coefficient of determination (R2) values of >0.9. The VIC measurements were obtained using an instrumented smooth drum vibratory roller that was programmed to output stress-dependent resilient modulus (Mr). VIC-Mr on a compacted subgrade and the overlaid granular layer are presented in this paper. The VIC maps and field observations revealed the compaction layers and pavement foundation materials to be highly non-uniform and to have built-in low stiffness "soft" areas and high spatial variability that are not necessarily addressed with conventional quality control (QC)/quality assurance (QA) observation and spot testing. The VIC maps on the unbound subbase layer showed reflections of the "soft" and "stiff" areas in the underlying subgrade.

Original languageEnglish (US)
Title of host publicationGeotechnical Special Publication
EditorsChristopher L. Meehan, Miguel A. Pando, Joseph T. Coe, Sanjeev Kumar
PublisherAmerican Society of Civil Engineers
Pages421-429
Number of pages9
EditionGSP 310
ISBN (Electronic)9780784482070, 9780784482087, 9780784482094, 9780784482100, 9780784482117, 9780784482124, 9780784482131, 9780784482148, 9780784482155, 9780784482162
DOIs
StatePublished - Jan 1 2019
Event8th International Conference on Case Histories in Geotechnical Engineering: Geotechnical Materials, Modeling, and Testing, Geo-Congress 2019 - Philadelphia, United States
Duration: Mar 24 2019Mar 27 2019

Publication series

NameGeotechnical Special Publication
NumberGSP 310
Volume2019-March
ISSN (Print)0895-0563

Conference

Conference8th International Conference on Case Histories in Geotechnical Engineering: Geotechnical Materials, Modeling, and Testing, Geo-Congress 2019
CountryUnited States
CityPhiladelphia
Period3/24/193/27/19

ASJC Scopus subject areas

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

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  • Cite this

    White, D. J., Vennapusa, P., Tutumluer, E., & Moaveni, M. (2019). Mechanistic Assessment of Layered Pavement Foundation System Using Validated Intelligent Compaction Measurements. In C. L. Meehan, M. A. Pando, J. T. Coe, & S. Kumar (Eds.), Geotechnical Special Publication (GSP 310 ed., pp. 421-429). (Geotechnical Special Publication; Vol. 2019-March, No. GSP 310). American Society of Civil Engineers. https://doi.org/10.1061/9780784482124.043