A Study on Properties of Bacteria Based Blended Concrete

Abstract

Concrete is certainly the most widely used building material. Because concrete is prone to environmental changes, cracks easily. Even with the best grade materials and skilled labor, surface cracks in concrete are often inevitable. Concrete's strength and durability may deteriorate as a result of the cracks. The maintenance required to fix these cracks will be expensive. In order to eliminate these defects, the technique of self-healing is applied to the concrete. Hence, the present study is to determine the performance of the concrete byusing GGBS, Metakaolin, Bacteria and river sand as a fine aggregate. The present study focuses on optimal usage of GGBS and Metakaolin (5, 10, 15, 20, 25, 30) percent by weight of the cement in concrete and their effect on microbial concrete made of Bacillus Subtilis of concentration 105 cells/ml. The mechanical and durability properties of concrete for different mixes i.e., with bacteria and without bacteria in blended concrete determined by casting concrete cubes, cylinders and prisms respectively. The Results reveal promising improvements in strength and durability, highlighting the potential of incorporating bacterial agents as a sustainable solution in concrete technology.