A pavement Moisture Accelerated Distress (MAD) identification system, volume 1

The development of extrinsic (climate) and intrinsic (material property) factors that impact on the moisture related performance of a pavement are presented. Procedures are presented which allow the engineer to classify a pavement as to the potential for moisture accelerated damage (MAD) to occur. This analysis can be performed in the office during initial planning stages to indicate areas where moisture damage may be expected. The areas noted with a high potential for MAD can be investigated further by visual NDT, or coring operations during the normal development of the rehabilitation project. This simplified analysis allows the engineer to see where, and why moisture damage should develop, and aids him in evaluating drainage problems of particular materials and considering the need for further drainage studies.