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6th International Conference on Physical and Theoretical Chemistry

Zurich, Switzerland

Cesare Oliviero Rossi

Cesare Oliviero Rossi

University of Calabria, Italy

Title: Bitumens modified by waste food additive: Antioxidant effects and high rheological


Biography: Cesare Oliviero Rossi


This contribution a reviews the current understanding of bitumen structure and the consequences in terms of properties, with a strong emphasis on the rheological properties. The links between chemistry, structure and mechanical properties are highlighted in the framework of an updated colloidal picture of bitumen [1].

In particular it explores for the first time, the potentialities of additives from natural resources, i.e., non-toxic and eco-friendly biocompatible compounds, acting both as adhesion promoters and as rheological modifiers [2].

We found, in fact, a class of lipophilic food grade compounds to be very efficient as Multi-Functional Additives (MFA) once they were dispersed in hot bitumen solutions in small quantities. Their effect on the high temperature mechanical performance of a tested bitumen has been investigated through time cure rheological measurements and the sol-transition temperature was determined in a wide range of temperatures. The determination of the contact angle between the aggregate surface and modified bitumens, blended with increasing amounts of additives, has been also carried out.