This thesis presents an overview of the scientific literature and the research done up until now on the topic of self-healing concrete. Concrete is an indispensable material in the modern world. Its great fault is that it is prone to cracking, but the self-healing effect could help solve this. Self-healing concrete is defined as a type of concrete that can repair its own cracks. There are many types of self-healing, which can be fundamentally divided into autogenous and autonomous. An autogenous process is the intrinsic ability to self-heal and fix smaller cracks. Problems arise with larger cracks, and this is where autonomous processes come into play. These processes are based on a healing agent that ordinary concrete does not contain. Based on the composition of the substance, we can differentiate between chemical and biological self-healing processes. In the chemical versions, the healing agent is made up of various chemicals, while in the biological ones, the substance is composed of bacteria and organic nutrients. The latter idea has been shared the most among researchers and is the topic of numerous studies. Most researchers agree that this idea could represent our future. Their opinions differ only on which bacteria and nutrients are the most effective and on the ideal technique for adding the self-heal substance. Because they all want the strongest, sturdiest and longest-lasting concrete, of course.
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