This is the participant's handbook for the workshop. New maintenance technologies are briefly described.
Preventive maintenance is more effective and less expensive than damage repair.
The treatments that constitute a proactive approach must be applied earlier in a pavement's life in order to be effective. As preventive maintenance is applied when the pavement is in good condition and before it starts to deteriorate, the problem becomes one of identifying the factors that indicate that accelerated deterioration is imminent. There are a number of technologies that could be applicable for evaluating a pavement's need for maintenance before distress is visible. The application of these technologies to pavement maintenance lies in their ability to examine sub-surface conditions that would provide information about the pavement. In particular, these technologies might be used to identify the presence of saturated layers, the onset of sub-surface cracking, or the initial development of small voids between layers that could be corrected by a maintenance treatment without waiting until the distress is visible.