Hasanzadeh, S., Velay-Lizancos, M., Chang, W., Lopez-Arias, M., & Francioso, V. (2022). Synthesis study of best practices for cleaning tools and paving equipment: Asphalt release agents (ARAs) and asphalt cleaners (ACs) (Joint Transportation Research Program Publication No. FHWA/IN/JTRP-2022/18). West Lafayette, IN: Purdue University. https://doi.org/10.5703/1288284317381
Diesel has been used widely as an asphalt cleaning agent due to its effectiveness for many years. However, its negative impact on health and the environment calls for more sustainable and safe alternatives. Asphalt Release Agents (ARAs) are products for preventing or mitigating undesirable adhesion of HMA to the asphalt equipment, and Asphalt Cleaners (ACs) are products for remediation when the adhesion has already happened. In this study, commercially ARAs and ACs reported by NTPEP and U.S. DOTs are quantitatively and qualitatively examined based on the following criteria: (1) cost-effectiveness, (2) functionality, (3) environmental, and (4) safety considerations. The results provided valuable insights into cost-effective products; and ultimately led to developing an interactive decision-making dashboard to help INDOT make more informed decisions regarding testing and investing in these alternatives.
asphalt release agents, asphalt cleaners, diesel, hot-mix asphalt, paving tool, paving equipment, safety
Joint Transportation Research Program
Indiana Department of Transportation
West Lafayette, IN
Date of this Version