Effectiveness of geogrid base-reinforcement in low-volume flexible pavements

Jayhyun Kwon, Erol Tutumluer, Imad Al-Qadi, Samer Dessouky

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


Geogrids have been widely used to reinforce paved and unpaved roads constructed on soft subgrade. To quantify the effectiveness of geogrids in low-volume flexible pavements when constructed on weak subgrade, full scale pavement test sections were constructed at University of Illinois. The pavement sections were tested using the full-scale Accelerated Testing Loading ASsembly (ATLAS). The pavement sections were instrumented, during construction, to monitor in-situ pavement response to various vehicular and environmental loading conditions. The testing was conducted using a dual-tire assembly at 44-kN load, 8 km/h speed, and 690-kPa tire inflation pressure. Post-failure forensic evaluation of the pavement sections was conducted. The evaluation included transverse profile measurements. The study found that reinforced pavement sections experienced less rutting than the unreinforced sections. Observations of the pavement cross section profile, through trenches dug after the testing was complete, confirmed that pavement failure was mainly due to subgrade shear. Copyright ASCE 2008.

Original languageEnglish (US)
Title of host publicationProceedings of session of GeoCongress 2008 - GeoCongress 2008
Subtitle of host publicationGeosustainability and Geohazard Mitigation, GSP 178
Number of pages8
StatePublished - Dec 1 2008
EventGeoCongress 2008: Geosustainability and Geohazard Mitigation - New Orleans, LA, United States
Duration: Mar 9 2008Mar 12 2008

Publication series

NameGeotechnical Special Publication
ISSN (Print)0895-0563


OtherGeoCongress 2008: Geosustainability and Geohazard Mitigation
CountryUnited States
CityNew Orleans, LA

ASJC Scopus subject areas

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

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