AGGREGATES FOR ROAD USING CONVERTER SLAGS WITHOUT AGING THEM

摘要

PURPOSE: Aggregates for road are provided, which are allowed them to be used in conventional converter slags without aging them, to give the remarkable reduced expansion thereof, to offer the thus-obtained shortening of the time to be accomplished it to age steel-making slags, and to obtain dramatical reduction of the maintenance cost for steel-making slags. CONSTITUTION: A aggregates for road having their particle size of 40mm or less are characterized by comprising some conventional converter slags and shaft furnace slags. The sized aggregates are specifically formulated with 30 wt% or less of the sized and non-aged converter slags having 2.5mm or less of their size. The remaining parts of the desired aggregates are also characterized by including shaft furnace slags.