State of the art: Correlation self-healing agent and corrosion on concrete

Department of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Brawijaya Street, Geblagan, Tamantirto, Kasihan, 55183 Bantul, Special Region Yogyakarta, Indonesia

^* Corresponding author: ahmad.zaki@umy.ac.id

Abstract

Corrosion is a common problem in reinforced concrete construction. Corrosion in reinforced concrete can be initiated by cracks forming on the surface of the concrete. Widening the cracks will facilitate the ingress of aggressive liquids or gases from the surrounding environment, which will cause problems with the reinforcement and form corrosion. Self-healing methods on concrete can make efforts to prevent crack widening. The self-healing concrete method is an effort to repair damage to concrete that doesn't rely too much on the role of humans. The self-healing concrete is expected to reduce the level of cracking in concrete and reduce the diffusion rate of chloride ions in concrete to extend the concrete's life and maintain the concrete's ability to deal with environmental conditions that are too acidic. Some literature also mentions that adding self-healing agents to the concrete mixture can increase the concrete's compressive and flexural strength value. This paper describes several prospective self-healing agents for use in self-healing concrete, also the relationship between the effect of adding self-healing agents on corrosion in reinforced concrete.