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In Oregon, asphalt cracking is the major distress mode, necessitating costly rehabilitation and maintenance at intervals of less than half of the intended design lives in some cases. To address this issue, this study followed a balanced mix design process (developed by Coleri Research Group at OSU) to design three asphalt mixtures for Oregon roads with high traffic levels.
Based on the life cycle cost and environmental impact analyses, the mixture with warm mix additive was selected as the most economically and environmentally viable asphalt mixture to be used for construction in Oregon.