Steric hardening and the ordering of asphaltenes in bitumen

Download	View accepted manuscript: Steric hardening and the ordering of asphaltenes in bitumen (PDF, 661 KiB)
DOI	Resolve DOI: https://doi.org/10.1021/ef0498667
Author	Search for: Masson, J-F.; Search for: Collins, P.¹; Search for: Polomark, G. M.¹
Affiliation	National Research Council Canada. NRC Institute for Research in Construction
Format	Text, Article
Subject	bitumen, steric hardening, asphaltenes, calorimetry, DSC, modulated DSC, MDSC; Roads/Pavement; Roads
Abstract	Steric hardening is the hardening of bitumen over time at room temperature. It occurs after bitumen is melted and it often leads to poor reproducibility in standard testing. Modulated differential scanning calorimetry shows that asphaltenes order when bitumen is cooled from the melt and that this phenomenon is time dependent. This communication establishes the link between the ordering of the asphaltenes in bitumen and its steric hardening. It is suggested that at least 24 h elapse between the melting and pouring of bitumen and its subsequent testing by standardized methods.
Publication date	2005-01-01
In	Energy & Fuels 19, no. January 1 (1 January 2005): 120–122.
Language	English
Peer reviewed	Yes
NRC number	NRCC 47288 NRC-IRC-16386
NPARC number	20378407
Export citation	Export as RIS
Report a correction	Report a correction (opens in a new tab)
Record identifier	7dee6750-c4ad-4d2d-b11d-c22f1432fc62
Record created	2012-07-24
Record modified	2020-04-07

Page details