Different modified bitumen types tested in the laboratory
Work in the laborathory completed during the first semester of 2016 has focused on testing two types of nano-modified bitumen. The new DURABROADS bitumen has been compared with conventional polymer-modified bitumen to evaluate quality and better performance of new bitumen fundamental properties.
The two types of carbon-based nanoparticles used as additives for the modification of the bitumen were: graphite in different forms (GNPs, GO, GP) and carbon black. Likewise, the combination of polymer SBS and nano-additives in the bituminous matrix was also studied. Paving Grade Bitumen 70/100 was used as base bitumen.
The evaluation has mainly focused on observing performance results of softening point -R&B temperature, penetration, ductility and elastic recovery. In addition, rheological characterization was conducted to optimize the bitumen characteristics.
The investigation and test of different properties has facilitated the development of optimal DURABROADS bitumen.
For further information about latest development, please contact Raquel Casado:
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