Chemo-mechanical Modelling in Bonded Geomaterials from the Micro- to the Macro-scale
Contributo in Atti di convegno
Data di Pubblicazione:
2019
Citazione:
Chemo-mechanical Modelling in Bonded Geomaterials from the Micro- to the Macro-scale / A. Gajo, F. Cecinato, T. Hueckel (TRENDS IN MATHEMATICS). - In: Micro to Macro Mathematical Modelling in Soil Mechanics / [a cura di] P. Giovine, P.M. Mariano, G. Mortara. - [s.l] : Birkhäuser, 2019. - ISBN 9783319994741. - pp. 127-133 [10.1007/978-3-319-99474-1_13]
Abstract:
Chemo-mechanical effects are known to influence the behavior of bonded geomaterials in a number of applications in civil, environmental and energy engineering. In this work, a two-scale constitutive model is concisely presented, in which macroscopic chemo-mechanical properties are set to mainly depend on the reactive surface area and on the cross-sectional area of cementation bonds, via two key macroscopic ‘cross-scale’ functions. The model is focused on materials with nonreactive grains and reactive bonds, such as carbonate cemented sandstones or microbially cemented silica sands. An example validation is provided, by reproducing triaxial compression tests on both loose and bio-cemented sandy soil.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
Bonded geomaterials; Chemo-mechanical coupling; Constitutive modeling; Micro-macro relationships
Elenco autori:
A. Gajo, F. Cecinato, T. Hueckel
Link alla scheda completa:
Titolo del libro:
Micro to Macro Mathematical Modelling in Soil Mechanics