CORROSION BASED DURABILITY STUDY IN CONCRETE USING BIOMINERALIZATION

The resistance of concrete against attacks by acid, weather, abrasion, corrosion is named as durability, which will also influence engineering properties. Degree of durability and engineering property depends on the major factor of micro pores and their bonding in interconnection. Pre casting factors such as its ingredients, mix proportions, placing and curing methods, the surrounding environmental conditions also being the next dependable factor for properties of concrete. All this factors serves as the element of life span of concrete structure. These factors are inversely proportional to life span of structures, as it increases the life of the structure gets decreased. Sealing micro pores will not only increase its engineering properties but also increase the durability factor such as corrosion, permeability etc., In this a clear study has been made on Corrosion which holds a greater part in deterioration of structures, corrosion starts due to the formation of cracks in the structure, sealing of cracks may be a possible at its exterior levels, but in its internal structure cracks grows consecutively, a bio approach has been applied in sealing the micro pores and cracks internally in the structure by bacterial growth, which precipitates calcite which seal the micro pores and cracks thereby increasing engineering and durability factors. Hence biomineralization using Bacteria is a sustainable and an eco-friendly output towards the existing needs against strength and serviceability of structure.