Evaluation of concrete properties when incorporating a certain concentration of Lysinibasillus Sphaericus bacterial strain

Abstract

Concrete elements, when subjected to loads that exceed their load – bearing capacities, may develop cracks over their service life. These cracks provide a pathway for harmful substances that can potentially impact the integrity of the concrete matrix or any reinforcement that may be present within. This significantly affects durability and leads to a reduction in the lifespan of structures. Currently, self – healing concrete is being researched, which has the ability to autonomously seal cracks, using bacteria, known as Bio concrete. These microorganisms, through the process of biomineralization, produce calcium carbonate (CaCO3), which facilitates the sealing of any cracks that may occur. An evaluation was carried out to determine the feasibility of incorporating bacteria into concrete and to assess their impact on concrete properties.