Research Seminar By Dr. Orazio Baglieri

Thursday, May 24, 2018 10:30 am - 11:30 am EDT (GMT -04:00)

Seminar hosted by the Centre for Pavement and Transportation Technology 

By Dr. Orazio Baglieri - Associate Professor, Polytechnic University of Turin (Politecnico di Torino) Turin, Italy Healing Properties of Bituminous Binders

Abstract The capability to recover stiffness and strength after being damaged under loading represents a peculiar property of bituminous materials used in road paving applications, commonly referred to as healing. Healing is generally associated to phenomena of micro-crack repair that take place within the material when external loading is removed and sufficient rest time is given. Mechanisms driving micro-damage healing, however, are not yet fully understood and a number of methods have been proposed in order to evaluate healing properties of bituminous binders and mixtures. In the seminar, some recent experimental studies carried out at the Politecnico di Torino on this topic will be presented. In particular, presentation will focus on a proposed test procedure consisting of continuous shear loading interrupted by single rest periods under different testing conditions. Several healing indexes to be used in discriminating and ranking the healing potential of bituminous binders are also introduced. The seminar will be preceded by a brief overview of current research activities at the Politecnico di Torino in the area of pavement engineering.

Orazio Baglieri is associate professor at the Politecnico di Torino, where he teaches Road Design and Construction in the Master's degree program in Civil Engineering. He graduated from the Politecnico di Torino in 2001, and in 2005, he obtained his PhD degree cum laude at the University of Marche, Ancona.  From 2005 to 2011, he served as assistant professor at the University of Genoa. He was a visiting scholar at the University of Wisconsin-Madison (WI) in 2007 and he is currently a visiting professor at the Lyles School of Civil Engineering at Purdue University-West Lafayette (IN). He has been senior lecturer at the TTPU University of Tashkent (Uzbekistan) since 2013. Dr. Baglieri currently serves as secretary of the RILEM Technical Committee TC 278-CHA (Crack-Healing of Asphalt pavement materials) and is the team co-leader of Task Group TG2 (Laboratory experimentation).