Pore and Solid Characterizations of Interfacial Transition Zone of Mortar Using Microcomputed Tomography Images

The interfacial transition zone (ITZ) in concrete is known as the weakest link of the material, and significantly affects the properties of concrete. This study aims to investigate the actual microstructure of the ITZ using microcomputed tomography (micro-CT) in three dimensions (3D). For this purpose, high-resolution synchrotron micro-CT images of materials are used to visualize and examine the 3D ITZ of cement-based specimens. A set of mortar...