Quantification of Self-Healing Effect of Bacillus Subtilis on Cementitious Material

The creation of smart self-healing materials and preventativerepair techniques is required due to the growing concern for safety sustainability buildings. Although development microcracks rarely affects a building's structural qualities, increased permeability caused by microcrack networking poses significant threat durability concrete structures increasing likelihood that aggressive will enter structure. This studyevaluates capacity bacterial with traditional concrete. Bacterial spores calcium lactate, two-component biochemical agent, are released from particle crack ingress water upon fracture development. agent embedded into cement mortar its behavior studied. Control specimens cast tests like compressive strength, porosity, UPV test, ESEM, EDAX done. results were studied 15,30 45 days healing. After submerged in water, experimental revealed crack-healing up 7.6% cracks but only 2.46% control specimens.