Controlling the Fracture Location of Capsules Using the Bonding Surface Characteristics of Photocurable Resin

Abstract

In recent years, self-healing research has been actively carried out to increase the life and stability of concrete structures. A representative method of concrete self-healing is a method using a bacterial substrate and a capsule. Bacteria-based self-healing is greatly influenced by the external environment, and sleeping structures are more suitable for capsule-based methods. In this study, the mechanical properties of the bonding surface of the photocurable resin are used to grow cracks in the capsule so that the self-healing capsule pops out and the healing liquid inside the capsule can be diffused efficiently. We proceeded with research to form pathways. The study analyzed the concordance rate of the bonding surface of the capsule and the judging position, and analyzed the factors affecting the concordance rate. As a result, by adjusting the number of bonding surfaces and the degree of air bubble removal, the rate of coincidence between the bonding surfaces and the fracture position was increased from 15.48% to 63.18% by a factor of 4.08.