Abstract
The experimental and analytical study on the autogenous shrinkage of cement paste, of which mechanism is assumed to be creep phenomenon due to the transition process from the unstable stress state to the stable stress state, were performed. In the analysis, the autogenous shrinkage model which is assumed to be creep phenomenon was developed and then the developed model was introduced to the coupled model with the liquid and solid phase of cement and concrete as a two phase porous permeable material. The applicability of the developed models was estimated compared with the experiment results. In the experiment, the autogenous shrinkage tests with the parameter of the atmospheric pressure (1.0atm, 0.5atm and 0.3atm) were performed and then the effect of the parameter on the autogenous shrinkage was discussed.
