STUDY ON STRENGTH OF THE BACTERIAL CONCRETE IN BACILLUS MEGATERIUM

Concrete a strong, durable material composed of cement, aggregate and water is the most used building material in the world. Concrete has an ultimate load bearing capacity under compression but the material is weak in tension. The steel reinforced bars take the load when the concrete cracks in tension. To increase the strength and durability of the structure either crack that are formed should be repaired conventionally using epoxy injection or latex treatment or by providing extra reinforcement in the structure during the design phase to ensure that the crack width stays within a permissible limit. A reliable self-healing biological app of water approach is first proposed by V. Ramakrishnan to make use of bacterial concrete to heal cracks in concrete structure. The experiments are conducted to find the compressive strength, split-tensile strength and flexural strength of the normal concrete mix of 30Mpa with a water–cement ratio of 0.39. In this study mix proportions for M30 grade of concrete with different concentration of bacteria (Bacillus Megaterium) adding 5g in 1lit/m3 of water.