Experimental design of an alkali-activated slag concrete railway sleeper

This research aims to improve the sustainability of Dutch prestressed concrete railway sleepers. Approximately 100.000 to 200.000 sleepers are used every year, corresponding to 12.000 to 24.000 tonnes of concrete. This will be done by replacing cement with an alkali-activated binder. The cement industry is responsible for approximately 5 to 7%...