Long term monitoring of broken and seated pavements : research implementation plan.
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2007-12-07
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Edition:Research implementation plan.
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Abstract:In 1984, ODOT began using the break and seat technique as one of the rehabilitation methods for jointed
reinforced concrete pavement (JRCP). Approximately 200 centerline miles of pavement have been
rehabilitated using the break and seat technique. During a review of Ohio’s pavement rehabilitation
program by the Ohio Division of the FHWA in 1992, it was noted that performance studies of break and
seat projects were not conclusive. As a result, the report recommended ODOT restrict the use of the
break and seat method to non reinforced concrete pavement. ODOT imposed a moratorium on the use
of the break & seat technique and initiated a research project in association with the University of
Cincinnati to validate the FHWA findings. The goal of the project was to systematically evaluate the
effectiveness of breaking and seating JRCP. Two test projects, each containing control sections, were
constructed and monitored for a 2 ½ year period. The conclusion of this study was the break and seat
technique did alter the structural characteristics of the test pavements and also was effective in delaying
and minimizing reflective cracking. However, these conclusions were based on short term performance
of the test sections. Research was needed to investigate the long term performance (10 years) of the
break and seat rehabilitation technique.
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