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Cracks in concrete are unpreventable and it is intrinsic weakness of concrete. Through these cracks water and salts can seep. It initiates corrosion further reducing the life of concrete. So there was a requirement to develop an intrinsic biomaterial, a self repairing technique which can repair the cracks and fissures developed in concrete. This technique is highly desirable because the activity of crack remediation is eco friendly and natural. The paper discusses the plugging of artificial cracks in in cement concrete using Bacillus megaterium. The effect on compressive strength, water absorption and water permeability of cement concrete cubes due to mixing of bacteria is also discussed in this paper. It was found that the use of Escherichia coli improves the compressive strength and stiffness of concrete. The effect on compressive strength, water absorption and water permeability of cement concrete cubes due to mixing of bacteria is also discussed in this paper. It was found that the use of Escherichia coli improves the compressive strength and stiffness of concrete. It also shows that there is reduction in water absorption and water permeability when compared to conventional concrete. The bacteria which are going to be introduced in concrete should have the properties of alkali resistance and it also should form endospore, so that it can withstand the stresses produced in concrete while mixing, handling and transporting.

New Bacterial Concrete to Repair Cracks Through Self Healing Technique