In the present work Tall Oil Pitch (TOP) and SBS were added to a plain binder 30/45 to meet the penetration and softening temperature of a reference polymer modified binder 25/55-55. Performance tests using the Dynamic Shear Rheometer (DSR) and the Bending Beam Rheometer (BBR) were carried out to see if the Bio polymer modified binder can reach similar performances in the high, intermediate and low temperature range to the reference polymer modified binder. The results showed that the chosen formulation can achieve similar rutting and thermal cracking performances, but not similar fatigue performances to the reference binder. Moreover, the effect of adding 50% of RAP binder to the Bio polymer modified binder were investigated. The results indicate better rutting performance and worst fatigue and thermal cracking resistance in comparison to the Bio polymer modified binder.
Experimental study on the performance properties of bio-based polymer modified binder
Riccardi C.Conceptualization
;Losa M.Membro del Collaboration Group
2022-01-01
Abstract
In the present work Tall Oil Pitch (TOP) and SBS were added to a plain binder 30/45 to meet the penetration and softening temperature of a reference polymer modified binder 25/55-55. Performance tests using the Dynamic Shear Rheometer (DSR) and the Bending Beam Rheometer (BBR) were carried out to see if the Bio polymer modified binder can reach similar performances in the high, intermediate and low temperature range to the reference polymer modified binder. The results showed that the chosen formulation can achieve similar rutting and thermal cracking performances, but not similar fatigue performances to the reference binder. Moreover, the effect of adding 50% of RAP binder to the Bio polymer modified binder were investigated. The results indicate better rutting performance and worst fatigue and thermal cracking resistance in comparison to the Bio polymer modified binder.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
