Evaluation of Bituminous Mixes in Pavement Structures. Interim Report V. A Study of Transverse Cracking in Oklahoma Flexible Highway Pavements.

摘要

Field and laboratory studies were made to investigate the nature and extent of transverse cracks on Oklahoma flexible pavements and to determine the possible causes of this form of distress. Only the influence and contribution to this type of cracking from the bituminous components of the pavements were considered. Nine test sites on State and Interstate highway sections were studied. Examinations of field cores showed that newly developed transverse cracks did not extend through the pavement matrix and supported the concept that such cracks are caused by tensile forces developed at low temperatures.