Past research has shown that the ageing process of bitumen is not solely a function type itself, but rather, added effects have been identified attributed to presence fillers. Nevertheless, contradicting results exist between various studies with respect implications fillers on bitumen. The present study aims develop better understanding regarding role in Bitumen-filler blends (mastics) were pr...

Bitumen in asphalt pavements reacts slowly with atmospheric oxygen, resulting oxidative ageing. This reaction is strongly dependent on the physical diffusion of oxygen into bitumen. study aims to use molecular dynamics (MD) simulation investigate bitumen film and analyse effects anti-ageing compounds (AACs) diffusion. The MD simulations using a Polymer Consistent Force Field (PCFF) were conduct...

To study the performance of bitumen mixture pavement sealants from their micro-mechanisms, physical properties base bitumen, SBS-modified and epoxy resin sealant as well adhesive sealant-aggregate interfaces were studied using a molecular dynamics simulation. The adhesion sealant-pavement crack wall was contact angle test based on surface energy theory. results show that has excellent propertie...

The technological temperatures of binders were established in this work based on the temperature-viscosity dependences constructed at an equal shear rate (40 s − 1), i.e. to which it is advisable heat bitumen during preparation asphalt concrete mixtures and corresponding beginning compaction laid coating. For all modified used work, these are only 2 - 4° lower than process initial bitumen.

In recent decades, porous asphalt has been extended for surface drainage in various regions throughout the world. The permeability of porous asphalt has an important role in the performance of asphalt pavements in the rainy weather. The most remarkable problem related to the porous asphalt is its short service time. Considerable efforts have been made to enhance the mechanical properties of por...

Abstract Viscosity is the resistance of a material to continuous deformation exerted by shear force. High viscosity, which sometimes greater than 1 million mPa s, at initial reservoir conditions, major challenge recovery, production, and transportation bitumen. Addition organic solvents or diluents with bitumen leads significant viscosity reduction forms basis for steam/solvent-assisted recover...

Surface dressings are a sustainable maintenance alternative for pavements with surface distresses, due to the low amount of resources involved. This paper aims analyze viability using twelve different dressing solutions, including three binders (conventional and modified emulsions, soft 160/220 bitumen) covering diluted emulsion, treatment Portland cement concrete (PCC) pavements. Several test ...