Is concrete healing really efficient? A review

By Amir Sidiq, R. Gravina, Filippo Giustozzi. Construction and Building Materials, 2019

146 citations recorded by the source corpus.

Abstract Concrete is a widely used material in the construction industry due to its affordability and availability; however, it is also sensitive to crack formation typically under tension stresses. Due to cracking, the durability of concrete is compromised via contaminant ingress such as rapid chloride penetration and atmospheric water that infiltrate through these cracks and potentially lead to corrosion of steel in reinforced concrete. Self-healing materials embedded in cementitious materials is emerging as an innovative method to improve concrete durability. This paper reviews available self-healing approaches considering various healing materials with respect to performance and application. Attention to the efficiency of healing materials including biotechnological, polymeric and chemical components for crack healing and improvement in strength is a major focus. Consideration is also placed on methods of testing, evaluation methods for calculating efficiency and comparison of self-healing materials and their efficiency. Finally, a conceptual life-cycle cost for conventional and self-healing concrete structures is provided.

Subfields: Civil and Structural Engineering, Environmental Engineering

View Paper: https://www.semanticscholar.org/paper/53961a4635495d12295f2662c3bce1a8ad96ca9b