Investigation of reflective cracking mitigation techniques : [summary].
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2014-03-01
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Abstract:When new asphalt is placed over concrete or
asphalt pavement, cracks or joints in the old
layer can appear in the new overlay; this is
called reflective cracking (RC). In current Florida
practice, an asphalt rubber membrane interlayer
(ARMI) is placed between old and new pavements
to reduce reflective cracking. However, ARMI has
shown inconsistent performance and a recent
accelerated pavement testing (APT) study found
that ARMI can initiate instability rutting when
subjected to slow moving truck loads and elevated
summer temperatures. Therefore, the Florida
Department of Transportation (FDOT) is seeking
alternatives to prevent and mitigate RC.
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