First-principles investigation of the multiple phases in bituminous materials: the case of asphaltene stacking

First-principles investigation of the multiple phases in bituminous materials : the case of asphaltene stacking

Schmets, A.J.M. (author)

Kringos, Nicole (author): Delft Univ Technol, Fac Civil Engn & Geosci, Delft, Netherlands

Scarpas, A. (author)

Duif, C (author)

Schitter, G (author)

Pauli, T. (author)

(creator_code:org_t)

Rhodes, Greece, 2009
2009
English.
In: ADVANCED TESTING AND CHARACTERISATION OF BITUMINOUS MATERIALS. - Rhodes, Greece. ; , s. 143-150

Abstract Subject headings

The existence of a microstructure in bituminous materials can explain this materials tendency to self heal. By means of atomic force microscopy and small angle neutron scattering the existence of the microstructure is demonstrated once again. Then it is suggested that the observed microstructure may very well be a consequence of the aggregation of asphaltenic molecules (providing internal volumes with a low H/C-ratio). This is a rather unadventurous suggestion, because flocculation of asphaltenes costs the global oil industry millions of dollars per day. A model asphaltene (a coronene-like molecule) has been selected for calculating semi-empirically the tendency to form stacks. It was found that there is some tendency to cluster, but the effect is not strong enough to be responsible for the observed microstructure.

By the author/editor: Schmets, A.J.M.; Kringos, Nicole; Scarpas, A.; Duif, C; Schitter, G; Pauli, T.

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Infrastructure E ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.