Pavement/sub-grade condition assessment I-65 approximate milepost 97.5 (transition from asphalt) to 102.5 (KY 313 overpass).
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2005-06-01
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Abstract:In efforts to perform an assessment of both the existing pavement and the underlying subgrade conditions, the Kentucky Transportation Center employed the use of three types of equipment/infrastructure analyzers: drill truck for taking field cores; falling-weight-deflectometer (FWD) to measure sub-grade modulus and load transfer across transverse pavement joints; and ground penetrating radar (GPR) to determine pavement layer thickness, subgrade thickness, and an estimate of subgrade moisture variability.
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