Performance of Hot Mix Asphalt Concrete When using Electric-Arc Furnace Slag as Natural Coarse Aggregate

These days, steel slag is one of big problem in Vietnam because there are too much steel slag produced from steel industries, especially electric-arc furnace slag. In order to use this by-product in highway, especially in hot mix asphalt, the main objective of this paper is to evaluate the effect of electric-arc furnace slag as coarse aggregate replacement instead of natural aggregate. Three contents of slag were used are 0, 50, and 75%. The evaluated tests include Marshall stability, indirect tensile strength, and resilient modulus test.