Cold In-Place Recycling (CIR) is an advanced, sustainable road rehabilitation method that recycles existing asphalt pavement in place without removing or hauling away materials. It’s revolutionizing how deteriorated asphalt roads are restored.
The CIR Process:
Step 1 – Milling: A Reclaimer/ Recycler mills the existing asphalt pavement to specified depth (typically 75-150mm), pulverizing it into uniform particles in place .
Step 2 – Mixing: EBS is mixed with the milled asphalt creating new binding properties and a water resistant layer .
Step 3 – Compaction: The recycled mixture is compacted to specified density, creating a new, uniform base layer with excellent structural properties.
Step 4 – Surface Application: A new wearing surface is applied—typically a EBS surface seal, completing the rehabilitated road structure.
When CIR Is Used:
Cold In-Place Recycling is ideal when asphalt surface has deteriorated (cracking, raveling, oxidation), base layer remains structurally sound, road profile is acceptable (no major grade corrections needed), and budget constraints limit traditional reconstruction.
Advantages:
CIR uses 90-95% existing materials (minimal waste), eliminates most hauling (reduced emissions and traffic disruption), enables faster construction than traditional methods, provides extended pavement life (20-30 years), and costs significantly less than complete reconstruction.
CIR with EBS eliminates the otherwise high negative environmental impact of removing and discarding asphalt .
Transform old asphalt roads sustainably. Soil Solutions delivers proven cold in-place recycling: www.soilsolutions.com
