Rheological analysis of crumb rubber modified binder
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Date
Authors
Mturi, G.A.J.
O'Connell, J.
Journal Title
Journal ISSN
Volume Title
Publisher
Document Transformation Technologies
Abstract
Paper presented at the 30th Annual Southern African Transport Conference 11-14 July 2011 "Africa on the Move", CSIR International Convention Centre, Pretoria, South Africa.
In South Africa. the use of crumb rubber modified (CRM) bitumen has increased over the years as increased traftic loads have resulted in higher performance requirements. Empirical binder characterisation of CRM bitumen remains widespread internationally, even though empirical properties cannot predict asphalt mix performance. Advanced rheological characterisation of CRM bitumen using a dynamic shear rheometer (DSR) is a superior alternative once the morphological challenge of the binary binder system has been overcome. This paper documents a method for the rheological analysis of CRM bitumen with ageing and attempts to relate such characterisation to the performance of CRM bitumen in an asphalt mix.
In South Africa. the use of crumb rubber modified (CRM) bitumen has increased over the years as increased traftic loads have resulted in higher performance requirements. Empirical binder characterisation of CRM bitumen remains widespread internationally, even though empirical properties cannot predict asphalt mix performance. Advanced rheological characterisation of CRM bitumen using a dynamic shear rheometer (DSR) is a superior alternative once the morphological challenge of the binary binder system has been overcome. This paper documents a method for the rheological analysis of CRM bitumen with ageing and attempts to relate such characterisation to the performance of CRM bitumen in an asphalt mix.
Description
This paper was transferred from the original CD ROM created for this conference. The material was published using Adobe Acrobat 10.1.0 Technology.
The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: nigel@doctech URL: http://www.doctech.co.za
Keywords
Crumb rubber modified bitumen, Empirical binder characterisation, Rheological analysis, Asphalt mix
Sustainable Development Goals
Citation
Mturi, GAJ & O'Connell, J 2011, 'Rheological analysis of crumb rubber modified binder', Paper presented to the 30th Annual Southern African Transport Conference, South Africa, 11-14 July. pp. 543-552