The rheological properties of oxidized bitumen in the presence fibrous materials based on cellulose and chrysotile asbestos used as stabilizing additives production crushed stone-mastic asphalt concrete mixtures have been studied. It has established that supramolecular structure fibers characterizing interaction between macromolecules largely determines effectiveness their structuring action fo...

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...

This paper advances ideas and presents experiments on the flow characteristics of concentrated emulsions of Venezuelan bitumen in water plus surfactant. These emulsions are studied under a variety of flow conditions, namely between rotating cylinders, in a colloid mill and in pipes. The ideas advanced here concern the modeling of the highly viscous bitumen drops as solid spheres and their fract...

• Oxygen-moisture kinetics control the oxidative ageing and moisture damage of bitumen. The transport reaction processes oxygen in bitumen are reviewed. Moisture-oxygen strongly affect physicochemical mechanical properties. possibilities for coupling effects discussed. Oxidative key factors degradation asphalt pavement deterioration. on governed by their processes. This paper provides an overvi...

The ageing of bitumen is an inevitable phenomenon which still challenging to be characterised. This paper aims at evaluating the degrees comprehensively. There were six types being aged five levels for comparing purposes and multiple rheological tests by a DSR as well chemical test SARA (saturates, aromatics, resins asphaltenes) properties carried out. critical temperatures, G-R parameter nonre...

Bitumen as a construction material is extremely widespread in hydraulic engineering and road construction. has wide variety of features useful properties, which allowed it to reach leading level among other binder building materials. The article presents the peculiarities laboratory testing bitumen. Step by step technique bitumen on ring-ball device ductilometer disclosed. importance quality co...

Urban green roofs are discussed as a local climate adaptation measure to limit surface warming and increase evaporative cooling by vegetation in urban environments. A five month measurement campaign was conducted to observe surface and air temperatures as well as dewfall dynamics and amounts on an urban green and co-located bitumen roof. Measurements were performed in the period from August to ...

The quality of wide a variety of synthetic or naturally occurring materials which are used for outdoor applications are known to be adversely affected by environmental factors. These materials absorb solar ultraviolet radiation leading to changes in their structures and compositions. The consequences of these changes lead to degradation of the materials. Bitumen is one of the materials which is...

This research study aims to investigate the feasibility of incorporating high-density polyethylene waste (HDPEW) into bitumen applications. Two conventional conditions bitumen, namely, aged (AB) and virgin (VB), are rejuvenated modified, respectively, using post-consumer HDPEW sourced out bottle crates. The outcome (Pyro oil, PO-HDPEW) pyrolysis thermochemical process is used by 10, 20, 30% rej...