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Parameters to characterise the effects of Sasobit® content on the rheological properties of unaged and aged asphalt binders
Journal article   Peer reviewed

Parameters to characterise the effects of Sasobit® content on the rheological properties of unaged and aged asphalt binders

M O Hamzah, Ali Jamshidi, K Kanitpong and M Y Aman
Road Materials and Pavement Design, Vol.13(2), pp.368-375
2012
DOI: https://doi.org/10.1080/14680629.2012.668836
url
https://doi.org/10.1080/14680629.2012.668836View
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Abstract

ageing dynamic shear rheometer rotational viscometer Sasobit® rheology viscosity
Incorporation of warm asphalt additives in conventional asphalt binder affects its rheological properties. This paper presents two Superpave â„¢ binder parameters that were used to characterise the rheological properties of PG64 and PG70 asphalt binders blended with various Sasobit® contents and subjected to high and intermediate temperatures as well as under different ageing conditions. The parameters used to characterise the binder rheology at high and intermediate temperatures were the non-dimensional viscosity gradient (∇ηS) and nondimensional Superpavetrade; rutting parameter (NSRP), respectively). The results indicated that the ∇ηStrends differ depending on binder types, test temperatures and ageing conditions. The NSRP exhibited a significantly different trend for each Sasobitreg; content, depending on binder type and ageing conditions.

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Construction & Building Technology
Engineering, Civil
Materials Science, Multidisciplinary
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