Aiming to make defect-free reinforced concrete buildings, high-fluidity technology and non-drying shrinkage type concrete technology, using a new admixture, were combined to develop a suitable concrete for applications. This concrete was applied to a wall that embodied a refined design whereas it could not contain crack-inducing joints. 18 months after its construction, an investigation confirmed that no cracks were observed on the wall. Furthermore, based on research results on the effect of member thickness on drying shrinkage strain, a prediction of long-term strains in this wall was made showing the concrete expansive behavior that would be exhibited in the future.
