Environmental performance analysis of bitumen stabilized ballast for railway track-bed using life-cycle assessment

摘要

Bitumen stabilized ballast (BSB) is a novel and promising construction or maintenance strategy of traditional ballasted track-bed that consists in the use of bitumen emulsion (BE), which is poured or sprayed at ambient temperature onto the ballast. The bound aggregates show high resistance to degradation and allows increasing intervals between both minor and major maintenance activities.