Types of Road Treatments

There are more than a dozen ways you can treat a road, from a simple fog seal to complete road reconstruction. But we’ve broken these down to three major categories Preventive, Rehabilitation and Reconstruction and have included some of the more common treatments within each of those categories.
The goal of Preventive maintenance is to maintain or improve the functional condition of the road, slow the rate of deterioration, and extend the life of the road by five to seven years.  By helping slow the rate of deterioration, we can delay, or completely eliminate, the need for major rehabilitation or reconstruction in the future.  Preventive maintenance treatments can be done independently or combined with other treatments to help extend the life of the road. Some of the more common Preventive maintenance treatments used in Lancaster include fog seals, crack seals, slurry seals, Traction Seal and thin overlays. 
Rehabilitation treatments are carried out on roads that exhibit distresses and failures like block cracking, rutting, shoving and potholes that are beyond being fixed with preservation maintenance techniques, but aren’t severe enough to warrant complete reconstruction. Rehabilitation treatments used in Lancaster include Micro Mills, Chip Seals, and Cape Seals.  The goal of Rehabilitation treatments is to help create a safer driving surface, improve the overall appearance, provide a seal to repel moisture from damaging the base and extend the useful life of the existing pavement by eight to ten years. 
Reconstruction involves the complete replacement of the road with new or reused asphalt which can have a useful life upwards of 20 years. Reconstructed roads are most favorable to drivers but are also the most costly fix. By comparison, Preventive maintenance treatments can cost as little as $1,200 per lane mile while Reconstruction can run as much as $261,000 per lane mile. In addition, Reconstruction projects can take several months to design and construct, making it very disruptive to drivers and adjacent businesses.  Some of the most common Reconstruction treatments used in Lancaster are Mill and Fill and Full Depth Reclamation.