Highway IDEA Program Extraction of Layer Properties from Intelligent Compaction Data

  • Michael Mooney, Norman W. Facas, +6 authors STEPHEN R. GODWIN
  • Published 2013

Abstract

The TRB currently manages the following three IDEA programs:  The NCHRP IDEA Program, which focuses on advances in the design, construction, and maintenance of highway systems, is funded by American Association of State Highway and Transportation Officials (AASHTO) as part of the National Cooperative Highway Research Program (NCHRP).  The Safety IDEA Program currently focuses on innovative approaches for improving railroad safety or performance. The program is currently funded by the Federal Railroad Administration (FRA). The program was previously jointly funded by the Federal Motor Carrier Safety Administration (FMCSA) and the FRA.  The Transit IDEA Program, which supports development and testing of innovative concepts and methods for advancing transit practice, is funded by the Federal Transit Administration (FTA) as part of the Transit Cooperative Research Program (TCRP). Management of the three IDEA programs is coordinated to promote the development and testing of innovative concepts, methods, and technologies. For information on the IDEA programs, check the IDEA website (www.trb.org/idea). For questions, contact the IDEA programs office by telephone at (202) 334-3310. ACKNOWLEDGEMENTS The authors are grateful to a number of companies for their input including Sakai, Case, Caterpillar, Trimble, and transportation agencies including the Minnesota and Colorado Departments of Transportation. The authors are grateful to the following individuals for their help throughout the project: Dr. This reports details the findings of the National Cooperative Highway Research Program project 145 (NCHRP-145) titled " Extraction of Layer Properties from Intelligent Compaction Data. " Vibratory roller-based measurement of soil and asphalt properties during and after compaction, an approach termed Continuous Compaction Control (CCC) or Intelligent Compaction (IC), has gained considerable momentum in the U.S. IC combines roller-based measurement of soil or asphalt properties with GPS-measured position to provide continuous assessment of stiffness over 100% of the production area. This constitutes a significant improvement over the coverage provided by spot test methods. One limitation of current IC technology is that the estimated soil or asphalt stiffness provided by vibratory smooth drum IC rollers (12-15 ton) is a composite measure of ground stiffness to a depth of 1.0-1.2 m. This is considerably greater than a 15-30 cm thick layer or lift of subgrade, subbase or base material, and thinner lifts of asphalt. While this composite measure of stiffness is informative, it does not provide a measure of layer elastic modulus/stiffness. In this investigation, a methodology was developed to extract layer elastic modulus/stiffness from composite …

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Cite this paper

@inproceedings{Mooney2013HighwayIP, title={Highway IDEA Program Extraction of Layer Properties from Intelligent Compaction Data}, author={Michael Mooney and Norman W. Facas and John T . Berger and Judith Wang and Bernadette Kenneally and A. Darcie Neff and Inam Jawed and G A Frederick and STEPHEN R. GODWIN}, year={2013} }