General Parameters & Advice
CCPR is often used as a base or binder mix in new construction and as a shoulder widening material. The success in these uses depends on an adequate structural design and a well constructed wearing surface. CCPR is also used with CIR to enable a deeper treatment depth or in instances where it is not possible to CIR the pavement. In these instances, the success of the treatment would be the same as for CIR and is best suited where the pavement surface is worn and badly cracked but the subgrade is still firm and in good condition. CCPR is occasionally used as an overlay on an existing pavement and is best suited for pavements that are not badly cracked but need additional structure. In most applications, a wearing surface will be required.
Site Selection for Specific Distresses
CCPR is often used in rehabilitation or new construction. When used with CIR or as an asphalt overlay, it can be used to address the distresses shown in Table 10-1 from the BARM.
Road Type, Surface, and Traffic Specifics
Traffic volume should not be a consideration provided that a pavement structural design is conducted and the recycled material is designed to have sufficient early and long-term strength.
Climate
There are no climate restrictions for CCPR. CCPR has been used successfully in all four climate zones, wet freeze, dry freeze, wet no freeze and dry no freeze. However, there are weather restrictions during construction. See Weather Requirements for more information.
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