Due to inflation, the &#118alue of existing materials in many highways is two to five times their original worth ?HIR saves costs and non-renewable resources by recycling these valuable materials. With HIR, the same pavement materials can be recycled more than once and, if performed regularly, HIR minimizes the need for road reconstruction.
Further advantages of HIR include: With up-to-date equipment, proper pre-engineering and careful mix design, HIR will produce wearing course overlays that are fully compliant with end-product specification for conventional hot mix asphalt and Superpave
When using state-of-the-art equipment, HIR offers cost savings of about 35 per cent and time savings of 50 per cent when compared with an equivalent amount of resurfacing by the 憁ill and fill?method
Precious non-renewable materials, such as aggregate and bitumen, are conserved
Truck hauling and disposal problems are reduced or eliminated as all work can be done on site
HIR restores important surface properties such as ride quality, transverse slope and profile, and skid resistance
Existing pavement geometrics are preserved
HIR produces good hot-welded joints and as the recycled material is thermally integrated with the underlying binder layer, tack coating is generally not required 
The final surface is impervious to water, ice, and salt, and consequently it is more resistant to cracking and pothole formation when compared with conventional overlays HIR helps in meeting government environmental targets and therefore has a significant public relations &#118alue for governments and contractors
Single-lane repair is possible and traffic disruption is minimized
Road safety is improved as imperfections in the pavement surface are corrected
|