0000000000899288
AUTHOR
G Airey
Comparison between various bituminous binders modified with crumb tyre rubber
The aim of this paper is to show how the rheology, the performance and the storage stability of different bituminous binders, obtained from two bitumens with different asphaltenes content, change their properties when they are modified with recycled tyre crumb rubber. Physical, chemical and performance characterisation followed by rheological and storage stability analyses have been undertaken as the basis for the comparison. The results of the investigation indicate that bitumen with lower asphaltenes content is more influenced by the modification with the rubber. However, the modification of the bitumen with the higher asphaltenes content gives a binder with better performance and storage…
Comparison between bitumen modified with crumb tyre rubber and styrene butadiene styrene
The improvements in terms of mechanical properties due to the use of polymers to modify bitumens in road paving applications have already been widely demonstrated. The aim of this paper is to show how the rheology and the performance of a bituminous binder mixed with crumb rubber recycled from used tyres (CR-MB), could be comparable with a styrene butadiene styrene (SBS-MB) created with the same base binder and currently used for road applications. Physical, chemical and performance characterization followed by rheological and storage stability analyses have been undertaken as the basis for the comparison. The results of the investigation indicate that the blended CR-MB shows large improvem…