Effective stress concept for mechanical modeling of clays under different environmental conditions

Angelica Tuttolomondo,Lyesse Laloui,Alessio Ferrari

doi:10.1051/e3sconf/202020513015

Angelica Tuttolomondo, Lyesse Laloui + Show 1 more

Open Access

https://doi.org/10.1051/e3sconf/202020513015

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Abstract

Effective stress concept for mechanical modeling of clays under different environmental conditions

Highlights

Clays may exhibit different mechanical responses depending on their environmental conditions (e.g., Di Maio 1996; Manca et al 2016)
Cations dissociated from the clay mineral surface are named non-movable ions; they can extend for more than 1 nm (Tournassat et al 2009), up to 50 nm according to (Terzaghi et al 1996)
As a result of its structural peculiarities (Tuttolomondo et al 2020), water within 1 nm from the mineral surface is classified as solid water; water beyond 1 nm is classified as liquid water

Summary

Introduction

Clays (especially if active) may exhibit different mechanical responses depending on their environmental conditions (e.g., Di Maio 1996; Manca et al 2016). 2 Effective Stress Concept and Mechanical Modeling Implications Cations dissociated from the clay mineral surface are named non-movable ions; they can extend for more than 1 nm (Tournassat et al 2009), up to 50 nm according to (Terzaghi et al 1996).

Results

Conclusion