ABSTRACT
Djizanne Djakeun (2014) compiled the values of θ for a dozen salts for σ = 10 MPa and T = 310 K;
1 INTRODUCTION
1.1 Steady-state and transient creep
It generally is accepted that, when constant temperature and stress are applied to a rock sample, the observed strain (ε) is the sum of three parts: the elastic strain (εe), the transient viscoplastic strain (εt), and the steady-state viscoplastic strain (εs):
ε ε ε ε. . . . .= = +εe vp s t (1)
The immediate response to a load change is elastic; it can be described by a linear relation between ε.e and the applied stress rate, σ
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