Effect of field compaction mode on asphalt mixture concrete with basic oxygen furnace slag

Basic oxygen furnace (BOF) slag is applied as an aggregate to construct an asphalt concrete test pavement road, which is constructed using static, vibratory, and semi-static-vibratory rolling at various compaction numbers. The effects of field compaction numbers, rolling methods, and cooling time on BOF slag asphalt concrete pavement are evaluated. This study suggests that, if the pavement is opened to traffic and the strength development and stability of BOF slag asphalt concrete are simultaneously considered, the pavement should first be compacted by vibratory rolling approximately 3–4 rounds, followed by static rolling to complete the construction of the pavement.

► Vibratory rolling is better than static rolling for improving pavement compaction.
► Compaction number of BOF slag asphalt concrete must be carefully controlled.
► BOF slag asphalt concrete pavement should be compacted by vibratory rolling first.
► Heat storing effect for vibratory rolling is greater than that of static rolling.