The present experimental research investigates the feasibility of partial substitution of styrene-butadiene-styrene (SBS) with ground granulated blast-furnace slag (GGBS) for the modification of bitumen and porous asphalt mixtures. The control asphalt mixture and the seven modified porous asphalt mixtures have been analyzed separately and their performance was compared. Modified bitumen and asp...

Building more sustainable pavements for the future requires knowledge of alternative and innovative materials utilization in road construction maintenance activities. Being mindful this need, present study investigates a Reacted Activated Rubber (RAR) compound modifier with aim defining an optimal RAR percentage Asphalt Concrete (AC) mixes. It is acknowledged that when type incorporated within ...

In this paper, the effect of reclaimed rubber modification on the rheological characteristics of asphalt binders is studied. Reclaimed rubber with the extent of 12, 16 and 20 is added to the neat asphalt binder and then shear complex modulus is obtained for neat and modified asphalt binder via Dynamic Shear Rheometer (DSR) test. Using Christensen-Anderson- Marasteanu (CAM) model, master curves ...

The ability to anticipate the effects of interaction between waste rubber particles from end-of-life tires and bitumen can encourage use rubberized bitumen, a material with proven environmental benefits, in civil engineering applications. In this study, predictive model viscosity is presented for purpose. A machine learning-based approach (Multi-Gene Genetic Programming—MGGP) more traditional m...

Surface hot-in place recycling of asphalt mixtures has been conducted on Finnish roads for several years. The procedure is performed either in full-lane('remix') or shorter widths ('rut-remix'). In a 2020-2021 project, different mixture types were subjected to both kinds recycling; reference mixtures, and modified with aramid fibres, FEP elastomer pellets, polymer, Storelastic rubber additive, ...