In recent years, the use of crumb rubber as modifier or additive within asphalt concretes has allowed obtaining mixtures able to bind high performances to recovery and reuse of discarded tires. To date, the common technologies that permit the reuse of rubber powder are the wet and dry ones. In this paper, a dry-hybrid technology for the production of Stone Mastic Asphalt mixtures is proposed. I...

This review paper shows several sections of bitumen, asphalt mixtures, polymers, and waste plastic in pavement engineering. The reviews evaluates the influence using polymer improving rheological engineering properties modified binder mixtures. Evaluation design stone mastic mixtures are reviewed. Reports studies had investigated advantages importance bitumen modification; however, they yet sho...

Polymer-modified bitumen (PMB) is a high-performance material for road construction and maintenance. But its storage stability and phase separation behaviour are still not sufficiently understood and need to be studied toward a more successful and sustainable application of PMB. In this thesis, the equilibrium thermodynamics and phase separation dynamics of PMB are investigated with the aim at ...

Polymers have been widely used to improve the performance of bitumen. Polypropylene (PP), one most common plastomer for bitumen modification, is utilized specially in roofing application adding up 30 wt% This article presents an investigation four different polypropylene (PP) polymers having differences tacticity (atactic and isotactic), molecular weight (Mw ~ 12 000 g/mol ~250 g/mol) functiona...

Over the recent years, bitumen modification with polymers, acids, or mineral fillers has gained relevance to adjust its performance properties. This work reports the use of polyphosphoric acid (PPA) for the modification of formulated bitumen. With this objective, an in-depth literature review on PPA modification was firstly performed. Subsequently, five individual refinery components were selec...

The aim of this study was to investigate the effects different anti-ageing compounds (AACs) on oxidative stability, rheological and mechanical properties bitumen. Modified bitumen samples containing six AAC combinations, with five Irganox acid (3,5-di-tert-butyl-4-hydoxyphenylpropionic acid), a hindered phenol polymer-based antioxidant, were fabricated aged under conditions using Rolling Thin F...