Intelligent Compaction of Stabilized Subgrade of Flexible Pavement

Manik Barman, Syed Asif Imran, Moeen Nazari, Sesh Commuri, Musharraf Zaman

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

4 Scopus citations

Abstract

The long-term performance of a flexible pavement largely depends on the compaction level achieved in different layers during construction. Traditionally, the compaction level of the subgrade is monitored through spot checking of moisture content and dry density at some discrete points. However, this type of quality control work does not cover the entire pavement and may leave under-compacted areas. These under-compacted areas could likely lead to early failure of the pavement structure. Therefore, it is necessary to develop a real-time compaction monitoring tool that can provide an accurate measurement of the compaction level of the entire pavement. Such measurements could be used to identify and remediate under-compacted areas and provide adequate support to asphalt layers constructed on top of the prepared subgrade. The application of the Intelligent Compaction Analyzer (ICA) for real-time monitoring of compaction of a stabilized subgrade is addressed in this paper. Four case studies demonstrating the successful application of the ICA are included. The compaction level of the stabilized subgrade was monitored in terms of ICA density and modulus. In each case study, it was found that ICA could estimate the compaction level with a reasonable accuracy. It was also found that the ICA modulus and nuclear density gauge (NDG) measured density exhibits a good correlation with R2 equal to 0.73.

Original languageEnglish (US)
Title of host publicationIFCEE 2015 - Proceedings of the International Foundations Congress and Equipment Expo 2015
EditorsJ. Brian Anderson, Magued Iskander, Muhannad T. Suleiman, Debra F. Laefer
PublisherAmerican Society of Civil Engineers (ASCE)
Pages2554-2566
Number of pages13
ISBN (Electronic)9780784479087
DOIs
StatePublished - Jan 1 2015
EventInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015 - San Antonio, United States
Duration: Mar 17 2015Mar 21 2015

Publication series

NameGeotechnical Special Publication
VolumeGSP 256
ISSN (Print)0895-0563

Other

OtherInternational Foundations Congress and Equipment Expo 2015, IFCEE 2015
CountryUnited States
CitySan Antonio
Period3/17/153/21/15

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