Total construction with pcc is out of the question because it is too expensive and time consuming. In addition to expense and time, after a few years it will require additional rehabilitation. Pcc overlay is also too expensive and time consuming. Delays with heavy traffic flow on the turnpike would be intolerable while doing a pcc overlay. Pcc slab repair and patching is expensive and time consuming.
Traffic flow is a big problem.
Pcc patches don't give reliable performance. Diamond grinding is a band-aid approach. It does not provide an ultimate solution. HMA overlays without slab fragmentation will not prevent slab cracking, joint deterioration, faulting, punchouts and D-cracking when the underlying pcc pavement reflects through. Rubblizing has proven far less costly and far more effective than other methods of pcc rehabilitation.