Development of a semi-flexible heavy duty pavement surfacing incorporating recycled and waste aggregates - Preliminary study

This paper analyses the possibility of using altered aggregates and Reclaimed Asphalt Pavement (RAP) in cold mix asphalt used to produce grouted macadam pavements in comparison with the conventional hot mix porous asphalt skeleton. It also investigates the cementitious grouts performance when incorporated with milled glass and Panasqueira Waste Mud and geopolymerics grouts. This paper aims mainly at studying the introduction of mineral waste materials in grouted macadam pavements. The results indicate that the cold mixture 8/12.5 with altered granite and cementitious grout with 30% milled glass presents the best mechanical performance.