This is a preprint of an article published in Journal of Testing and Evaluation. Citation: Ghabchi, R., Singh, D., Zaman, M., & Hossain, Z. (2016). Micro-Structural Analysis of Moisture- Induced Damage Potential of Asphalt Mixes Containing RAP. ASTM Journal of Testing and Evaluation, 44(1), 1-12. Link to Article: http://compass.astm.org/DIGITAL_LIBRARY/JOURNALS/TESTEVAL/PAGES/JTE20140018.htm 1 Micro-Structural Analysis of Moisture-Induced Damage Potential of Asphalt Mixes Containing RAP Rouzbeh Ghabchi (1) , Dharamveer Singh (2) , Musharraf Zaman (3) , Zahid Hossain (4) 1 Research Fellow, School of Civil Engineering and Environmental Science, University of Oklahoma, 202 W. Boyd St., CEC 334, Norman, OK, 73019 (Corresponding author), e-mail: ghabchi@ou.edu 2 Assistant Professor, Department of Civil Engineering, Indian Institute of Technology (IIT), Bombay, India, 400076, e-mail: dvsingh@civil.iitb.ac.in 3 David Ross Boyd Professor and Aaron Alexander Professor of Civil Engineering, Professor of Petroleum and Geological Engineering, University of Oklahoma, 202 W. Boyd St., CEC 213A, Norman, OK 73019, USA, e-mail: zaman@ou.edu 4 Assistant Professor of Civil Engineering, Arkansas State University, LSW #239, PO Box 1740, State University, AR 72467, USA, e-mail: mhossain@astate.edu Abstract This study was undertaken to evaluate the effects of reclaimed asphalt pavement (RAP) on moisture-induced damage potential of asphalt mixes using two different approaches: (i) micro-