Behaviour of concrete in a stress continuity region after cracking under restrained drying shrinkage

Some studies have investigated the time-dependent characteristic of concrete for predicting stress under restrained shrinkage. However, these studies investigated the shrinkage behaviour of concrete in restrained conditions before cracking, and no study has yet investigated the behaviour of concrete due to restrained shrinkage in the stress continuity region after cracking. Therefore, this study investigates the shrinkage behaviour of concrete in the stress continuity region after cracking in uniaxial restrained specimens and analyses the restrained tensile stress of concrete in this region by way of a bond analysis. The results show that the effective tensile Young's modulus considering tensile creep is approx. 22-26% of the static modulus of elasticity. Moreover, the analytical results of the restrained tensile stress of concrete considering the effective tensile Young's modulus were in accordance with the experimental results.