This innovative reconstruction process is a cost-effective alternative to more traditional methods of rebuilding asphalt roadways. It is used when the existing asphalt pavement has aged, cracked, or deteriorated in other ways beyond the point of when normal road maintenance practices are feasible.
Cold In-Place Asphalt Recycling is the method of milling in-place and reusing existing asphalt material (RAP). Sometimes the underlying good quality aggregate (RAM) is used to rebuild and repave a roadway without the use of heat.
The process involves milling the top 3 to 5 inches of the existing asphalt surface. Next we use a down-cutting milling machine. We then size and mix the milled asphalt with bituminous emulsions and/or chemical additives to produce a restored pavement layer.
Once mixed, the material is conveyed into a bituminous paver and placed to the desired depth and elevations of the project plan.
Compaction of the Cold In-Place Asphalt material is completed using a 12 ton or more double-vibratory roller and 23-25 ton pneumatic tired rollers.
The CIR processes can correct cross-slope percentages, fill areas of depression, and restore curb reveal to its original curb design.
The images below are road candidates for CIR.