Damage assessment and performance evaluation of self-repaired concrete specimens under constant amplitude, high-cycle fatigue

The study of self-healing cementitious materials has gained traction recently due to the research for more sustainable, lasting, and safer structures. The performance evaluation of such materials is usually done using static tests, with few studies involving fatigue loading. Moreover, the use of Acoustic Emission (AE) technique for damage evaluation of such structures by means of AE parameters such as the Felicity Ratio, Calm Ratio, and b-value seems not to have been covered to a greater extent. In this sense, the present work aims to fill this gap by using the described tools to analyze the performance and damage level of self-healing concrete specimens subjected to constant-amplitude fatigue tests involving a large number of cycles.