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Shifting the bitumen structure from sol to gel. F. Bonemazzi and C. Giavarini. J. Petrol. Sci. Engng., January 1999, 22(1--3), 17--24.

The viscoelastic model and rheometer measurements are utilized to reveal the microscopic structure changes from sol to gel of acid or air-treated bitumen. Stability studies have also been undertaken on bitumens modified with a new class of polymers (polypropylene heteroplastic copolymers) before and after physical (high temperature blowing) or chemical (acid addition) treatments. 20 refs.

Abstract details


Journal title: Journal of Petroleum Science and Engineering

Keywords: asphalt, bitumen or tar -

Subjects: Chemical and petrochemical - Bitumen - Petroleum products -

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