Monitoring of autonomous healing process of concrete by acoustic emission and digital image correlation Ghent University
In this study, cracking formation and repair due to autonomous healing of concrete beams, tested in two stages of bending (loading-reloading) are reviewed. Encapsulated PU-based healing agent is embedded into concrete beams and is released when crack formation triggers and actuates the chemical repair process. The released agent fills the open crack and seals the fractured area. The potential mechanical recovery of the damage is investigated. ...