@article{Bandekar_Basavaraj_Munnoli_Gupta_Shetteppanavar_Jogayya_2021, title={Effect of Bacteria Inoculums on Compressive Strength}, volume={8}, url={https://jotitt.chitkara.edu.in/index.php/jotitt/article/view/141}, DOI={10.15415/jotitt.2020.82008}, abstractNote={<p>The use of bio-concrete is increasing in the present day context and researchers are working on strength and durability characteristics of concrete using bacteria species which have shown calcite precipitation. Three different species of bacteria namely P. Fluorescence, B. Pumilis and B. Subliis that have calcite precipitation properties have been investigated in this study. The investigations were carried first on cement mortar (CM) cubes using these three bacteria species suspension of 20%; 40% and 60% having colony forming units<em> P. Fluorescence</em> (10<sup>8</sup> CFU/ml), <em>B. Pumilis</em> (10<sup>6</sup> CFU/ml) and <em>B. Subtilis</em> (10<sup>8</sup> CFU/ml) respectively. The 40% suspension in all the three cases has shown increased compressive strength as compared to 20% and 60%. The compressive strength measured showed increase (CS) of 18%; 12% for <em>P. Fluorescence</em>; <em>B. Subtilis</em> and decrease of 35% with <em>B. Pumilis</em> respectively. <em>B. Subtilis</em> with optimized 40% suspension having CFU 10x10<sup>8</sup>/ml showed 4.32% ; 5.56%; and 3.81% increase in CS of CC cubes with 3 days; 7 days and 28 days respectively and 5.92% overall increase in CS of CC cubes as compared to the 3 days CS of control cube. <br /><strong>ABBREVIATIONS</strong><br />SDW: Sterile Distilled Water; SHC: Self-Healing Concrete; PCR: Polymerase Chain Reaction; BC: Bacterial Concrete; CP: Calcite precipitation; CS: Compressive Strength; CC: Cement Concrete; CM: Cement Mortar; MTCC: Microbial Type Culture Collection; CFU: Colony Forming Unit/ml</p>}, number={2}, journal={Journal on Today’s Ideas - Tomorrow’s Technologies}, author={Bandekar, Pooja and Basavaraj, Sandhay and Munnoli, Prakash Mallappa and Gupta, Jyoti and Shetteppanavar, Geeta and Jogayya, Sudisha}, year={2021}, month={Jul.}, pages={59–63} }