Results provided support that the solid-liquid transition occurs beyond the critical stress measured through creep, thereby tying it to static yield stress. The strains at which this transition occurred were compared with critical strains measured through low amplitude oscillatory shear.
Through examining this bifurcation behavior we found that the transition of viscosity occurs at very low strains. Beyond a critical stress viscosity decreases and the material flows, exhibiting viscoelastic liquid-like behavior. When applied stress is sufficiently low viscosity increases and the material yields, exhibiting viscoelastic solid-like behavior. A viscosity bifurcation behavior was observed through applying a range of creep stresses. In this study, a creep recovery shear rheological protocol was applied to fresh cement pastes. 2016 Articles Use of creep recovery protocol to measure static yield stress and structural rebuilding of fresh cement pastes
