Moisture Sensitive and Stress Dependent Behavior of Pavement Unbound Materials from Insitu Falling Weight Deflectometer Tests Farhad Salour * , M.Sc. Ph.D. Candidate Pavement Technology Swedish National Road and Transport Research Institute, VTI SE-581 95 Linköping Sweden Phone: + 46 13-20 41 11, Fax: +46 13-14 14 36 Email: farhad.salour@vti.se & Division of Highway and Railway Engineering Royal Institute of Technology, KTH SE-100 44 Stockholm Sweden Email: farhad.salour@abe.kth.se Sigurdur Erlingsson, Ph.D. Professor Faculty of Civil and Environmental Engineering University of Iceland Hjardarhagi 2-6 IS-107 Reykjavik Iceland Phone: +354 525 4654, Fax: +354 525 4632 Email: sigger@hi.is & Pavement Technology Swedish National Road and Transport Research Institute, VTI SE 581 95 Linköping, Sweden Phone: + 46 13 204123, Fax: +46 13-14 14 36 Email: sigurdur.erlingsson@vti.se Submitted for Presentation and Publication in the 92nd Annual Meeting of the Transportation Research Board (January 13-17, 2013) Submitted: July 30, 2012 Revised: October 23, 2012 *Corresponding Author TRB 2013 Annual Meeting Paper revised from original submittal.