Abstract
Steel slag is a waste material that generated during the process of steel making as a byproduct. It is the major industrials waste that generated from electric arc furnaces that accumulation with huge quantities which causes environmental problems for industrial and agricultural sectors. Therefore, it is very important to minimize waste disposal to reduce landfill area and disposal cost as well as their environmental effects. Lately, sustainable engineering has been applied to minimize waste disposal by using byproducts and waste materials to produce useful products. Therefore, in this research, steel slag has been applied as aggregate concrete asphalt to improve the properties of road pavement. It is used with the percentage of 10-40% of the weight of concrete asphalt mix. The results show that there is an improvement in the mechanical properties of the pavement. Marshal stability was increased from 8 to 15 KN by added slag with the percentage of 30-40%. For that reason, steel slag has widely accepted as aggregate in the pavement application as a road surface for heavy duty work.
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