Pavement Maintenance Effectiveness: Preventive Maintenance Treatments - Participant's Handbook
Pavement preventive maintenance is an important tool for extending the service life of pavements in a cost effective manner. Many of the available treatments are currently used by state highway agencies for pavement preservation. However, to be effective as a preventive maintenance practice, these treatments must be placed on the pavement much earlier in the pavement service life than is currently the practice. The purpose of this document is to describe the need for and benefits of preventive maintenance, discuss the engineering applications of these treatments, review the materials used for preventive maintenance, and describe the application process for these treatments. The treatments described in this document include: fog seals, slurry seals, micro-surfacing, chip seals, thin hot-mix overlays, and crack sealing of flexible pavements; crack and joint sealing, subsealing, and retrofit of dowel bars of rigid pavements. This Participant's Handbook was developed to support a one day workshop on pavement Maintenance Effectiveness - Preventive Maintenance Treatments.