University of Calabria, Department of Chemistry and Chemical Technologies, Via P. Bucci Cubo 14D, 87036, Rende, CS, Italy
Pietro Calandra
National Research Council, CNR-ISMN, Via Salaria km. 29.300, 00015, Monterotondo, Stazione, RM, Italy
Alfonso Policicchio
University of Calabria, Department of Physics, Via Ponte P. Bucci, Cubo 31C, 87036, Arcavacata di Rende, CS, Italy; CNISM - National Interuniversity Consortium for the Physical Sciences of Matter, Via della Vasca Navale, 84, 00146, Rome, Italy; CNR-Nanotec, c/o Università della Calabria, Via P. Bucci, Cubo 31C, 87036, Arcavacata di Rende, CS, Italy
Luigi Madeo
University of Calabria, Department of Physics, Via Ponte P. Bucci, Cubo 31C, 87036, Arcavacata di Rende, CS, Italy
Cesare Oliviero Rossi
University of Calabria, Department of Chemistry and Chemical Technologies, Via P. Bucci Cubo 14D, 87036, Rende, CS, Italy
Michele Porto
University of Calabria, Department of Chemistry and Chemical Technologies, Via P. Bucci Cubo 14D, 87036, Rende, CS, Italy; Corresponding author.
Abraham Abe
University of Calabria, Department of Chemistry and Chemical Technologies, Via P. Bucci Cubo 14D, 87036, Rende, CS, Italy; Corresponding author.
Raffaele G. Agostino
University of Calabria, Department of Physics, Via Ponte P. Bucci, Cubo 31C, 87036, Arcavacata di Rende, CS, Italy; CNISM - National Interuniversity Consortium for the Physical Sciences of Matter, Via della Vasca Navale, 84, 00146, Rome, Italy; CNR-Nanotec, c/o Università della Calabria, Via P. Bucci, Cubo 31C, 87036, Arcavacata di Rende, CS, Italy
Paolino Caputo
University of Calabria, Department of Chemistry and Chemical Technologies, Via P. Bucci Cubo 14D, 87036, Rende, CS, Italy
Improving the mechanical properties of bitumen is an important goal for road pavements design. For this reason, new compounds are now being sought for testing as bitumen modifiers.In this work, the authors studied the effect that two different chars have on two 50/70 bitumens with different chemical and physical characteristics. A complete morphological, surface and bulk characterization of the two additives was carried out. In addition, rheology, Nuclear Magnetic Resonance (NMR) relaxometry and atomic force microscopy were used to analyze the effect that the two additives exert on the properties of the bitumens. According to the results, the char sample with high porosity could be used as a modifier of mechanical properties, while no rejuvenation effects were observed for either of the two additives tested. In addition, the two additives do not give rise to segregation phenomena.
