Unbound granular pavement layers are known to be susceptible to moisture-induced damage. The Queensland Department of Transport and Main Roads therefore aims to control the moisture content of these pavement layers during construction by specifying a maximum allowable degree of saturation (DoS) prior to sealing the road. Unbound granular materials with moisture contents greater than the allowable degree of saturation limits can be prone to rapid deterioration, including potholes and rutting.
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