Search results for "Processing condition"
showing 4 items of 4 documents
Mechanical and rheological properties of polystyrene-block-polybutadiene-block-polystyrene copolymer reinforced with carbon nanotubes: effect of proc…
2017
Abstract Styrene-b-butadiene-b-styrene (SBS)-based nanocomposites filled with unmodified and –COOH functionalized carbon nanotubes (CNTs) have been formulated at different processing conditions in order to provide an understanding of the influence of the processing temperature and mixing speed on the nanofillers dispersion and on the overall properties of the nanocomposites. The evaluation of the nanocomposites’ mechanical and rheological behavior reveals that the effect of the processing speed on the final properties is almost negligible. Differently, the processing temperature influences strongly the mechanical and rheological properties of SBS-based nanocomposites. Indeed, for the nanoco…
Tyre rubber-modified bitumens development: the effect of varying processing conditions
2013
Tyre rubber-modified binders (TR-MBs), produced through McDonald’s wet process and used worldwide (e.g. asphalt rubber), have been demonstrated to provide various benefits to pavements and, moreover, they represent a good opportunity for recycling tyre rubber (TR). However, this technology is still struggling to be fully adopted in Europe, mainly because of their poor stability during high temperatures storage, which leads to high initial costs in modifying existing asphalt plants. Storage stable TR-MBs are proving to be a great option and their development could be the key to spread the recycling of TR within paving applications in Europe. This paper aims to enrich this field of research b…
On the Assessment and Optimisation of the Processing Conditions of Tyre-Rubber Modified Bitumen
2021
The current study aims at understanding the effect of the variables associated with manufacturing rubberised bitumens in order to develop rubberised bitumen with superior mechanical properties and identify optimised processing conditions for its production. The experimental work covered extensive laboratory testing of several rubberised bitumen blends. The rubberised bitumen was manufactured using four paving grade bitumens (180/240, 160/220, 70/100, 80/100), three tyre rubber types (mechanical ground, waterjet powder, ambient ground powder), and various processing conditions (shear levels, temperatures, processing times). Characterisation of the manufactured blends included rotational visc…