Cold In-Place Recycling

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Suitable Conditions

  • CIR should be performed when ambient temperature is at or above 50°F (10 °C)
  • Overnight ambient temperatures should be above 35 °F (2 °C).
  • During light rain, CIR can continue if it can be shown that the performance of the mat is not adversely affected.


If a CIR mix ravels excessively due to rain, the mat can be re-processed with or without adding cement to facilitate drying.

Unsuitable Conditions

  • CIR should not be performed when temperatures are expected to drop below freezing
  • Do not perform CIR projects if moderate to heavy rain is expected.
  • CIR cannot be performed if there is standing water on the roadway