Investigating the in situ Properties of Crumb Rubber Modified (CRM) Bitumen
The heterogeneous nature of crumb rubber modified (CRM) bitumen makes it impossible to extract from asphalt as a single component. It is […]
Document: Research Study
Laboratory evaluation of asphalt-rubber mastic prepared using mixed (wet + dry) method
As part of this study laboratory tests were carried out to determine the material properties and performance characteristics of mastic asphalt with […]
THE PERCEIVED VERSUS ACTUAL SHELF-LIFE AND PERFORMANCE PROPERTIES OF BITUMEN RUBBER
The South African Roads Industry is aware of the success achieved with bitumen rubber over the last 25 years. Due to its […]
New Bitumen Rubber Technology Improves Storage, Handling and Stability of Bitumen Rubber
Bitumen rubber is globally known to be the best modified binder from a rheological and a durability perspective. Due to its visco-elastic […]
Influence of processing conditions on rheology of tyre rubber modified bitumens
Tyre Rubber Modified Binders (TR-MBs), produced through McDonald wet process and used worldwide (e.g. asphalt rubber), have been demonstrated to provide various […]
Development of a Crumb Rubber Modified (CRM) PG binder Specification
Ground-up scrap tires have been used to modify asphalt binder for over 40 years. In that time the primary specification has been […]
Effect of crumb rubber modification on binder-aggregate coating
Binder-aggregate adhesion is a property of critical importance with regards to pavement durability. As such transportation agencies often have specific requirements with […]
Asphalt rubber versus other modified bitumens
Asphalt rubber and rubberized asphalt samples were produced using various available, public recipes and their properties were compared to different laboratory and […]
“Subballast project” design of a new recycled crumb rubber bituminous layer in the railway track subgrade
Bituminous subballast rail track, compared to conventional granular subballast track not only reduces maintenance costs, but also increases subgrade bearing capacity and […]
Comparison of Laboratory and Field Aging Properties of Asphalt-Rubber and Other Binders in Arizona
Over the last 40 years, Arizona has successfully used asphalt-rubber (AR) binders as defined by the American Society for Testing and Materials […]