COLD, IN-PLACE RECYCLING (CIPR) is an innovative road reconstruction process, and a cost-effective alternative to more traditional methods of rebuilding asphalt roadways. Applicable in certain situations, it’s used when existing pavement has aged, cracked or deteriorated in other ways beyond the point that normal road maintenance practices are practical. Engineering must have determined that the road bed base course is sound, before recommending CIPR as a viable solution.

The system Curran employs – a single-unit Cold, In-Place Recycling ‘Train’ -- runs a number of in-line functions:

• At the front end, a highly efficient milling machine excavates the existing asphalt pavement, typically to a depth of 4 - 6" to eliminate cracks, ruts and oxidized asphalt.
   
• The down-cutting action of this specially designed milling machine sizes the asphalt. Typically, the ground aggregate can be used either ‘as is’ or immediately reblended with a specially formulated emulsion that rejuvenates the former pavement, and acts as a binder to form the new recycled asphalt pavement.
   
• Next, this revitalized mixture is re-laid, and immediately leveled by a skilled operator using a road grader, followed by a roller. Great care is taken to insure the rebuilt surface conforms to project specifications, at the grade and cross-slope specified by engineering as required for proper storm water runoff.
   

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Following a brief curing period of generally one week where the base-course roadway is open to traffic, a final stage process overlays a fresh surface mixture averaging 1½” - 2" in depth to complete the reconstruction.

This method saves substantially on the need for virgin raw material, since the bulk of the aggregate used is the ‘bought-and-paid-for’ asset that’s already in place. As a result, this process provides considerable cost savings to the project owner.

The other major benefit of the CIPR process is time savings. Generally a CIPR job runs quicker than the more conventional grind-and-pave method. And, it minimizes inconvenience to the general public using the road,and to businesses who may rely on that road for their traffic.

Since the early 1980's, Cold In-Place Recycling has been used to reconstruct nearly every type of asphalt-based roadway. Cold, In-Place Recycling can also be used to rebuild all types of asphalt pavement, from airport taxiways and runways, to parking lots for heavy industrial, commercial and institutional uses.

The benefits of CIPR are many. Click on Button below to review.

The ARRA has put together an excellent FAQ regarding CIPR. Please Click Here to review it’s contents, and related information.