Data for: Material mechanical properties necessary for structural intervention of concrete structures

In order to predict structural performance, therefore, we need to develop generic method applicable to not only steel but also other materials. The generic model can tell us what would be the mechanical property to make the structural performance better. External bonding, which is a typical scheme for structural intervention, is not for new structures.

Therefore, it is necessary to clarify the material properties and structural details to achieve better bonding strength at interface between substrate concrete and externally bonded material. This paper presents the mechanical property of substrate concrete and intervention material; (1) to achieve better shear strength and ultimate deformation of member after structural intervention, and (2) to achieve better debonding strength for external bonding.

Some of the mechanical properties and structural details necessary for better structural performance for structures with structural intervention are different and new from those for structures without intervention. For example, high strength and stiffness are properties for materials in structures without structural intervention, while high fracturing strain and low stiffness are properties for structural intervention materials.