Cold In-Place Recycling

Instead of mill & fill, use CIR as a cost-effective alternative to reduce materials costs, cut down on trucking and hauling, and repair pavements with faster construction times.

Cold In-place Recycling vs Mill & Fill

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Removes 70% of cracks in most cross sections


Adds 15-20 years of service life. And if applied optimally, can reach 25 years.


Inhibits future reflective cracking from occurring

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Did you know:

What is CIR?

When agencies or pavement owners need to rehabilitate damaged pavements using constrained budgets, they look to Cold in-Place Recycling (CIR) in place of conventional mill & fill methods. CIR recycles the top 2-5 inches of asphalt using a continuous train operation.

Generally, any road that is a candidate for mill & fill is a candidate for CIR. CIR is good for pavements with a PCI of 70 or less, and can be applied to nearly every road type.

The end result is a strong, recycled subgrade layer, which is covered with hot mix or other surface treatment.

Environmentally Responsible

90% less greenhouse gas: Because the CIR process is applied in-place with existing material, when compared to mill & fill, each CIR project dramatically cuts down on the need for trucking and hauling of materials, saving big for budgets and the environment.

How CIR Works


Deteriorated pavement is milled 2-5 inches from the pavement’s surface


As the surface is milled, the single unit train mixes additives such as cement or emulsified asphalt to the mixture


After the new mixture is laid, a compactor is driven across the surface


Apply a wearing course of Hot Mix or slurry pavement

CASE STUDY: Lee County Saves with CIR

County officials needed to fix cracking, shoulder cracking, and mend the failing edges of the road. In just one day, Rock Solid’s crew recycled 11,828 square yards of pavement with CIR, using only two truckloads of new material.
  • Saved $200K
  • Used 2 trucks vs 83 trucks
  • 1 day vs 3 days
  • 80% less emissions
Read the Case