Stabilisation offers the most efficient and economical method to rehabilitate failed pavements. Almost all failed pavements can be recycled and returned at a minimum to their original condition or often at a higher strength and longer design life.
An existing failed pavement can be recycled usually with over 90% of the original material being reused with addition of a small percentage of binder or a granular material to improve the engineering characteristics of the pavement. The process is normally completed in one shift, allowing the pavement to be trafficked even before the final wearing course is laid.
The existing pavement of spray seal or asphalt on road base can blended, mixed with a binder and relaid with the pavement mix design allowing for all constituent materials. Sometimes cross blending of disposing of some material is required if there is irregular deeplift patching.
The often overlooked aspects of stabilisation are its environmental advantages with the elimination of
- The need to use the fast diminishing resource of good quality road base
- Use of land fill sites to dispose of failed pavement material
- The majority of cartage of raw materials in and out of site
- Extended periods of lane downtime which is so costly to our economy