This study aimed to determine how various concentrations of warm mix asphalt (WMA) additives can affect the rheological and physical characteristics cement. Bitumen was modified by chemical additive PAWMA® with an addition ratio (0.2, 0.4, 0.6), while organic additives, Sasobit® Kaowax®, were added at (2, 4, 6%) weight bitumen. hardness, softness, temperature susceptibility, viscosity, elastic ...

This research aims to define an efficient and fast quantification of bitumen removal on the road surface by Digital Imaging Processing (DIP) and spectral analysis. The retrieval of bitumen removal is an important issue for road management and environmental studies related to asphalt wear and environmental pollution. The calculation of the Exposed Aggregate Index (EAI), based on DIP, allows to q...

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...

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 ...

Abstract In this paper, the prevention of negative technogenic impact on environment oil sludge by using it as a secondary resource is considered. Oil from various objects fields in Kazakhstan (Mangystau region) has been studied. The possibilities (after its separation bioremidiation) partial substitute for bitumen base production modified are main physical and mechanical characteristics determ...

Observing the microstructure of bituminous binders with an environmental scanning electron microscope (ESEM) can contribute significantly to reveal underlying rejuvenation mechanism. In this study, three rejuvenators were selected regenerate aged SBS modified at five dosages, and their rheology was evaluated using a dynamic shear rheometer. ESEM employed examine as well, series parameters quant...