Performance of Cold In-Place Recycling In NYS

Cold in-place recycling (CIPR) is a continuous multi-step process in which the existing asphalt pavement is recycled using specialized equipment identified in the Department's Approved List. This equipment cold mills the asphaltic pavement and blends asphalt emulsion and aggregate (if necessary) with the reclaimed material. Adding emulsion and aggregate improves the strength and durability of the reclaimed material. The recycled asphalt mix is then placed onto the existing milled roadway using conventional paving equipment and compacted using vibratory and pneumatic tire rollers. Once cured, all CIPR projects are overlaid. A research report will establish an expected service life for Cold In-Place Recycling projects. The report will also recommend improvements to current Department standards for construction of CIPR projects. Information regarding all CIPR projects constructed in New York, will be collected and compiled into a database. A sample of the compiled projects will be selected for detailed evaluation to determine the factors most critical to the service life of CIPR. The desired outcome of the project is to improve the standards in quality to enable expanded use of CIPR, resulting in decreased usage of limited natural resources and associated energy consumption. More appropriate CIPR project selection and a more predictable service life. A reduction in the rate of project failures due to poor candidate selection, leading to improved service life and decreased lane closures. This study supports the Department's Priority Result Areas for Mobility/Reliability, Safety and Environmental Conditions.