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Title: Performance of geogrid-stabilized flexible pavements
Authors: Norwood, Gregory J.
Tingle, Jeb S.
Keywords: Geogrid
Stabilized base course
Flexible pavement
Accelerated pavement testing
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Geotechnical and Structures Laboratory (U.S.)) ; no.ERDC/GSL TR-14-28
Abstract: The US Army Engineer Research and Development Center (ERDC) constructed a full-scale test section to evaluate the performance of geogrid-stabilized thin highway pavements. The test section included two representative highway pavements composed of hot-mix asphalt concrete (HMA) over a base course of crushed limestone and a 6 CBR clay subgrade. One highway lane was surfaced with 3-in. HMA and a 6-in. crushed limestone base course stabilized with geogrid. The second highway lane was surfaced with 4 in. of HMA and an unstabilized, 8-in. crushed limestone base course. Each test lane contained a suite of instrumentation consisting of strain gauges, earth pressure cells, moisture probes, pore water pressure transducers, and temperature probes. The geogrid was also instrumented with strain gauges in an attempt to determine the strain on the geogrid during testing. Each test lane was trafficked with simulated truck traffic to evaluate the rutting performance of the different pavement sections. This report summarizes the material characterization, pavement construction, instrumentation response, and performance response of the two test items.
Description: Technical Report
Gov't Doc #: ERDC/GSL TR-14-28
Rights: Approved for public release; distribution is unlimited
Appears in Collections:Technical Report

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