EFFECTS OF SELECTED ASPHALTS AND ANTISTRIP ADDITIVES ON TENSILE STRENGTH OF LABORATORY-COMPACTED MARSHALL SPECIMENS--A MOISTURE SUSCEPTIBILITY STUDY (WITH DISCUSSION)

South Carolina Department of Highways and Public Transportation personnel have observed stripping in asphaltic concrete pavements more frequently in recent years. This report describes selected results of approximately two and one-half years of stripping-related research conducted in South Carolina to: (1) identify the major causes of stripping problems in South Carolina; (2) identify moisture susceptibility of selected asphalt cements and aggregates in typical South Carolina paving mixtures; (3) indicate how moisture-induced stripping of asphaltic concrete can be prevented or minimized; and (4) evaluate the performance of selected sources of paving grade asphalt cements and antistrip additives in laboratory-compacted Marshall specimens tested in indirect tension.