ABSTRACT

                   Concrete is a common building material used in construction projects. It is common knowledge that one of concrete’s flaws is its susceptibility to cracking. When concrete is in a flexible stage or after it has fully set, cracks may appear. By enabling corrosive substances to enter the concrete matrix, which causes steel to corrode and lose tensile strength, microcracks in concrete also reduce durability. Such an occurrence could result in more serious issues like spalling and possibly early structural failure. Concrete structure maintenance and repair require a lot of labour and money. Once the building is done, it is difficult to determine the extent of the damage. Self-healing could be the answer. There are numerous methods of self-healing, including such as Autogenous and Autonomous self-healing ability of concrete cracks. The objective of this paper was to report the effects of bacteria-based additives on the properties of concrete such as Flexural strength, Normal Stress ,Ultimate Stress Tangent modulus of concrete of conventional concrete and Bacterial concrete and also using Polypropylene Fibers o.5% and 1% specimens using bacteria

Key words: Bacterial Concrete, Polypropylene Fibers, repair, Self Healing