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The performance of a trial gravel road under accelerated pavement testing
Swedish National Road and Transport Research Institute, Infrastructure, Pavement Technology.
2016 (English)In: Transportation Geotechnics, ISSN 2214-3912, Vol. 9, 161-174 p.Article in journal (Refereed) Published
Abstract [en]

This study presents the performance of a trial gravel road subjected to HVS (Heavy Vehicle Simulator) trafficking in a compressed time period. The road structure was constructed with 150 mm-thick aggregate base course, and 125 mm-thick sub-base course. The test road responses, such as surface deformation and rutting were recorded using laser profile measurement instrument while the unbound layers’ dynamic deflections and strains data were periodically recorded at different depths during the execution of the test by means of an array of micro strain gauges.

The test road was also instrumented with Water Content Reflectometers to record the changes in moisture contents in the road layers caused by the raising of the water table level under HVS trafficking. A total number of 85,000 HVS passes were applied to the trial gravel road structure under near-optimum as well as partially submerged subgrade moisture conditions. The test results emphasize the fact that the partial soaking of the subgrade soil by raising the groundwater table level caused a serious damage to the tested gravel road, as further detailed in this paper.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 9, 161-174 p.
Keyword [en]
Gravel road, Repetitive loading, Experimental road, Deformation, Rutting (wheel), Moisture content, Water table, Deformation, Strain
National Category
Infrastructure Engineering
Research subject
30 Road: Highway design, 32 Road: Pavement design
Identifiers
URN: urn:nbn:se:vti:diva-10931DOI: 10.1016/j.trgeo.2016.09.001OAI: oai:DiVA.org:vti-10931DiVA: diva2:998733
Funder
Swedish Transport Administration
Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2016-10-06Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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