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Rudolf Hampl, Otakar Vacin, Martin Jasso, Jiri Stastna, Ludo Zanzotto
Modeling of tensile creep and recovery of polymer modified asphalt binders at low temperatures
Appl. Rheol. 25:3 (2015) 34675 (8 pages)
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The creep and recovery of asphalt modified with Elvaloy 4170 and polyphosphoric acid were studied at low temperatures, by
inductive phenomenological methods. Two models of the tensile compliance function were investigated. Both models were
derived from the linear viscoelastic retardation spectra and successfully used for the description of the creep and recovery
tests in the studied asphalt binders. Large effects due to oxidative aging in a rolling thin film oven were found from the recovered
compliance function recorded in a bending beam rheometer at a temperature of - 20 C. The studied compliance function
models worked well at higher and lower temperatures in creep and recovery experiments on conventional and modified
asphalt binders for both shear and tensile creep.
► Cite this publication as follows:
Hampl R, Vacin O, Jasso M, Stastna J, Zanzotto L: Modeling of tensile creep and recovery of polymer modified asphalt binders at low temperatures, Appl. Rheol. 25 (2015) 34675.
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