Experimental investigation of the stabilization performance trends of two geogrids constructed on low bearing capacity subgrade

Süleyman Gökova, Mehmet Saltan, Serdal Terzi, Erol Tutumluer, Volkan Emre Uz, Mustafa Karaşahin

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

Abstract

Experiments were carried out on real size samples in the laboratory to investigate the geogrid stabilization performance in highway pavement applications. A moving wheel load was applied on representative pavement samples constructed on low bearing capacity subgrade with and without geogrids. Two types of geogrids were used to construct the pavement sample configurations. Resistance to plastic (permanent) deformation was recorded as a performance indicator to compare structural performance trends of the pavement samples. For this objective, surface deformations were measured after certain wheel load repetitions. Rut depths were calculated from surface profiles measured with a laser profiler. Layer thicknesses were varied to observe differences in the deformation trends. When appropriate conditions were reached in the trial configurations, all layer thicknesses were kept constant during the tests. The two geogrid types constructed with the same granular materials and varying layer thicknesses were used in different layer interfaces to search for the most optimum solution. According to the study findings, the use of geogrid over soft subgrade with low CBR values has been shown to extend the life of the pavement by reducing the rut depth.

Original languageEnglish (US)
Title of host publication11th International Conference on Geosynthetics 2018, ICG 2018
PublisherKorean Geosynthetics Society
Pages1119-1125
Number of pages7
ISBN (Electronic)9781713806080
StatePublished - 2018
Event11th International Conference on Geosynthetics 2018, ICG 2018 - Seoul, Korea, Republic of
Duration: Sep 16 2018Sep 21 2018

Publication series

Name11th International Conference on Geosynthetics 2018, ICG 2018
Volume2

Conference

Conference11th International Conference on Geosynthetics 2018, ICG 2018
CountryKorea, Republic of
CitySeoul
Period9/16/189/21/18

Keywords

  • CBR
  • Geogrid
  • Geosynthetics
  • Pavement
  • Wheel load simulator

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Environmental Engineering
  • Global and Planetary Change
  • Polymers and Plastics
  • Atmospheric Science

Fingerprint Dive into the research topics of 'Experimental investigation of the stabilization performance trends of two geogrids constructed on low bearing capacity subgrade'. Together they form a unique fingerprint.

Cite this