Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Volumetric Challenge of Crumbed Rubber Modified Asphalt Mixtures
Significant research has demonstrated the potential benefits associated with crumb rubber modification of bituminous binders for asphalt road surface production. Most of this previous research has focused on higher (20–30%) dosages of crumbed rubber and there is now an increased interest in lower (5–15%) dosages for improved binder and asphalt ageing to extend the time between periodic local road surfacing. For Marshall designed asphalt mixtures, the volumetric composition of the mixture is important and isolating the effect of the crumb rubber modification from the effect of an increased modified binder content is critical to understanding the economic viability of low dosage crumb rubber as an anti-ageing additive. Testing of a typical 10 mm dense graded asphalt mixture showed that the rubber is partially dissolved into the bitumen and both complete dissolution (100%) or no dissolution (0%) based calculations have a significant effect on Marshall volumetric properties such as binder film thickness, air voids and voids in the aggregate. Further work is required to determine a reliable method for determining the degree of crumb rubber dissolution on a case-by-case basis.
The Volumetric Challenge of Crumbed Rubber Modified Asphalt Mixtures
Significant research has demonstrated the potential benefits associated with crumb rubber modification of bituminous binders for asphalt road surface production. Most of this previous research has focused on higher (20–30%) dosages of crumbed rubber and there is now an increased interest in lower (5–15%) dosages for improved binder and asphalt ageing to extend the time between periodic local road surfacing. For Marshall designed asphalt mixtures, the volumetric composition of the mixture is important and isolating the effect of the crumb rubber modification from the effect of an increased modified binder content is critical to understanding the economic viability of low dosage crumb rubber as an anti-ageing additive. Testing of a typical 10 mm dense graded asphalt mixture showed that the rubber is partially dissolved into the bitumen and both complete dissolution (100%) or no dissolution (0%) based calculations have a significant effect on Marshall volumetric properties such as binder film thickness, air voids and voids in the aggregate. Further work is required to determine a reliable method for determining the degree of crumb rubber dissolution on a case-by-case basis.
The Volumetric Challenge of Crumbed Rubber Modified Asphalt Mixtures
Lecture Notes in Civil Engineering
Pasindu, H. R. (Herausgeber:in) / Bandara, Saman (Herausgeber:in) / Mampearachchi, W. K. (Herausgeber:in) / Fwa, T. F. (Herausgeber:in) / White, Greg (Autor:in) / Kidd, Andy (Autor:in)
30.01.2022
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Study on Ice Breaking on Crumbed Rubber Asphalt Pavement Based on Self-Stress Method
| British Library Conference Proceedings | 2012
Study on Ice Breaking on Crumbed Rubber Asphalt Pavement Based on Self-Stress Method
| Tema Archiv | 2012
Study on Application of Botanic Crumbed Rubber Asphalt in the Field of Road Building
| Tema Archiv | 2012
Study on Application of Botanic Crumbed Rubber Asphalt in the Field of Road Building
| Trans Tech Publications | 2012
Flexural shear behaviour of reinforced Crumbed Rubber Concrete beam
| British Library Online Contents | 2018