Models for restrained strains and self-stressing stresses in the members made of expansive concrete calculation
Existent models for self-stressing stresses calculation in the concrete of the self-stressed structures were considered. The applicability of these methods was assessed and it’s advantages and disadvantages were studied. Model for calculation of the restrained strains (self-stressing stresses) in the members made of expansive concrete was established. The proposed model based on strain compatibility, equilibrium conditions and physical laws for expansive concrete early age behavior description. Comparison of experimental and calculated data that was obtained in accordance with the described models for symmetrically reinforced members made of expansive concrete is given.