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Title: Full-scale accelerated testing of multi-axial geogrid stabilized flexible pavements
Authors: Robinson, W. Jeremy
Tingle, Jeb S.
Norwood, Gregory J.
Keywords: Base stabilization
Effective structural coefficient
Pavements, Flexible
Heavy vehicle simulator
Soil stabilization
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/GSL;TR-17-9
Abstract: Abstract: The U.S. Army Engineer Research and Development Center (ERDC) constructed a full-scale test section to evaluate the performance of geogrid-stabilized highway pavements. The test section consisted of two pavements composed of 3 in. of hot mix asphalt over a crushed limestone base course over a 6 CBR subgrade. One section was stabilized with Tensar’s TX5 multi-axial geogrid, and the second section was stabilized with a developmental geogrid referred to as TX8. Each section was instrumented with moisture probes, pore-water pressure probes, temperature probes, earth pressure cells, and asphalt strain gauges. Simulated truck traffic was applied using a heavy vehicle simulator (HVS) to evaluate the rutting performance and collect instrumentation response data. This report summarizes the material characterization and construction techniques, instrumentation response, and performance response of each section under simulated truck traffic. Comparisons are drawn to previous sections constructed and trafficked at ERDC without geogrids utilizing similar construction techniques and material properties.
Appears in Collections:Technical Report

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