Evaluation of Engineering Properties of Recycled Aggregates and Preliminary Performance of Recycled Aggregate Base Layers

Improving Field Moisture Monitoring of Recycled and Virgin Aggregates

“…Previous studies have revealed that recycled aggregates are good alternatives to virgin aggregates for several reasons including similar or improved stress–strain behavior and environmental benefits such as a decrease in energy consumption and gas emissions ( 38 , 39 ). Recycled asphalt pavement (RAP) and recycled concrete aggregate (RCA) are the most commonly used RAB in pavement foundation construction ( 40 – 42 ). RAP materials are obtained through milling of flexible pavements and consist of virgin aggregates covered with aged asphalt binder with hydrophobic properties, while RCA materials are produced from old rigid pavements and concrete structures which contain virgin aggregates and residual mortar that is prone to show hydrophilic properties ( 16 , 43 ).…”