The benefit using BOF slag on Perpetual Pavement that has been developed in United States and Europe recently, will effectively increasing Rutting and Skid Resistance of Pavement, reducing the amount of asphalt that used on Mix Design that will reduce the overall construction cost. The character of BOF slag has higher density and Hydrophilic, this study applied it to porous pavement. It compared with the performance of traditional aggregates. Based on the result, there are no significant differences. The BOF slag will be expansion with water, it was bad in pavement construction. Through swelling pressure test, the BOF slag with new process is no significant change in water. So, BOF slag is suitable in porous pavement.
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