Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nanoindentation investigation of asphalt binder and mastic viscoelasticity
An exploratory nanoindentation technique for creep testing of two neat asphalt binders and one mastic at room temperature is developed, tested and verified. This work presents a new approach to obtain viscoelastic properties from low-load spherical (blunt) nanoindentation. Interconverted shear relaxation modulus mastercurves are determined from nanoindentation data. The magnitudes and trends of these mastercurves are found to be in reasonable agreement with Dynamic Shear Rheometer (DSR) results in a stiffness range associated with the range of time and temperature used in nanoindentation testing. Nanoindentation creep data is transformed to develop a mastercurve of dynamic modulus. The portion of this mastercurve corresponding to the frequency and temperature range included in nanoindentation testing demonstrates reasonable agreement with DSR results. These initial results suggest the potential to expand nanoindentation testing to forensic investigations involving testing of preserved asphalt binder and mastic components within field-extracted asphalt concrete composites.
Nanoindentation investigation of asphalt binder and mastic viscoelasticity
An exploratory nanoindentation technique for creep testing of two neat asphalt binders and one mastic at room temperature is developed, tested and verified. This work presents a new approach to obtain viscoelastic properties from low-load spherical (blunt) nanoindentation. Interconverted shear relaxation modulus mastercurves are determined from nanoindentation data. The magnitudes and trends of these mastercurves are found to be in reasonable agreement with Dynamic Shear Rheometer (DSR) results in a stiffness range associated with the range of time and temperature used in nanoindentation testing. Nanoindentation creep data is transformed to develop a mastercurve of dynamic modulus. The portion of this mastercurve corresponding to the frequency and temperature range included in nanoindentation testing demonstrates reasonable agreement with DSR results. These initial results suggest the potential to expand nanoindentation testing to forensic investigations involving testing of preserved asphalt binder and mastic components within field-extracted asphalt concrete composites.
Nanoindentation investigation of asphalt binder and mastic viscoelasticity
Veytskin, Yuriy (Autor:in) / Bobko, Christopher / Castorena, Cassie
2016
Aufsatz (Zeitschrift)
Englisch
creep , micromechanics , Viscoelasticity , asphalt , Temperature , nanotechnology , mastics , loading rates , multiscale , Asphalt , binders , nanoindentation , viscoelasticity , Concrete
Nanoindentation investigation of asphalt binder and mastic viscoelasticity
| Taylor & Francis Verlag | 2016
Nanoindentation investigation of asphalt binder and mastic cohesion
| Online Contents | 2015
Nanoindentation investigation of asphalt binder and mastic cohesion
| British Library Online Contents | 2015
Nanoindentation investigation of asphalt binder and mastic cohesion
| Elsevier | 2015
Nanoindentation investigation of asphalt binder and mastic cohesion
| Elsevier | 2015