CONCRETE COMPOSITION TO RECYCLE BOTTOM ASH AS SUBSTITUTING AGENT FOR AGGREGATES AND TO MAINTAIN OR IMPROVE STRENGTH OR DURABILITY IN ECONOMIC WAY

摘要

PURPOSE: A concrete composition is provided to recycle bottom ash as a substituting agent for virgin aggregates, and to maintain or improve strength or durability in economic way. CONSTITUTION: The concrete composition with high strength comprises water, cement, sand, medium aggregate, coarse aggregate, stone powder and admixture, wherein the content of cement is 30-40wt%, and sand, medium aggregate and coarse aggregate are substituted with 15-25wt% of bottom ash having a diameter of 5mm or less, 10-20wt% of bottom ash having a diameter of 15mm or less and 10-20wt% of bottom ash having a diameter of 25mm or less, respectively.