Application of large deformation circular cylinder torsion test for identification of material model and parameters in case of modified binders

Marcin Daniel Gajewski , Stanisław Jemioło

Abstract

Constitutive relationships for asphalt binders are usually formulated in the frame of small deformation theory, cf. [1]. However, in many of technological and operational processes during production and laying of asphalt mixes, the binders are subjected to large deformations. Polymer modified binders (eg SBS) in the range of operating temperatures exhibit elastic, viscous and plastic mechanical behaviour. Aim of this study is to describe the elastic properties of modified binders. Due to the large range of deformation the hyperelasticity theory is applied [2-5]. As a result, only processes with monotonic active load are described, at constant temperature and fixed deformation rate. To determine the material functions and parameters for hyperelasticity the results of torsion test (torque and compressive force) carried out in DSR are used, [6,7]. In order to interpret the results of the tests the theoretical solution of torsion boundary problem is applied [4,8].
Author Marcin Daniel Gajewski (FCE / ICE)
Marcin Daniel Gajewski,,
- The Institute of Civil Engineering
, Stanisław Jemioło (FCE / ICE)
Stanisław Jemioło,,
- The Institute of Civil Engineering
Total number of authors2013
Pages261-268
Publication size in sheets0.5
Book Nicolas Roussel, Hela Bessaies-Bey (eds.): Rheology and processing of Construction Materials – 7th RILEM International Conference on Self-Compacting Concrete and 1st RILEM International Conference on Rheology and Processing of Construction Materials, 2013, Paris, RILEM Publications SARL, ISBN 978-2-35158-137-7, [978-2-35158-138-4], 406 p.
Keywords in Polishasfalt, materiały drogowe
Keywords in Englishasphalt binders, asphalt mixes
Languageen angielski
Score (nominal)0
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