Maintenance Methods for Continuously Reinforced Concrete Pavements

摘要

Research on CRCP has been active at Purdue University for the ISHC since 1971. In late 1975, test sections were constructed on a section of I-65 south of Indianapolis, Indiana to evaluate various maintenance techniques that might be adopted for this type of pavement. The road was stratified into 'similar' sections using deflection, cracking and breakup as selection criteria. Maintenance methods used included concrete shoulders, undersealing, asphalt concrete overlay, subdrains at the pavement edge and various combinations of these methods. In every case the pavement was patched prior to installation of the maintenance. Performance surveys were made every spring and fall through spring of 1979. The concrete shoulders and subdrains did not reduce the occurrence of distress to this pavement. Undersealing was an effective means of maintaining the pavements. No failures attributable to the underlying CRC occurred on the overlay section during the test period.