WATER SENSITIVITY OF ASPHALT CONCRETE

The purpose of this paper is to review and summarize the on-going work on water sensitivity in the SHRP program. Three factors in this project will be included: (1) a "state-of-the-practice" summary; (2) consideration of water sensitivity of asphalt concrete mixtures with respect to performance, including fatigue, permanent deformation, and low temperature cracking as well as the effect of aging; (3) development of laboratory testing procedures that will predict field performance. The study includes an evaluation of laboratory procedures currently being used and an assessment of the extent of use for each method. Several areas of needed research and discussion of possible methodology are presented. For the covering abstract see IRRD 851158.