Project Status: In Progress


Similar to the use of reclaimed asphalt pavement (RAP) which WARRIP has investigated previously, cold in-place recycling is a method of pavement construction used to rehabilitate aged asphalt pavements with minimal use of additional virgin materials.  This type of recycling reuses the asphalt as it is collected rather than requiring the reclaimed material to be taken off-site.  The process first removes the existing asphalt, immediately processes the material with additional bitumen and then replaces and compacts the recycled product back onto the roadbed to create a new pavement layer.  This project looks to investigate and assess if this type of recycling and rehabilitation process would suit Western Australian materials and conditions, while meeting Main Roads WA specifications and requirements.