Experimental Evaluation of Strength in Bacterial Concrete Mixtures

Year : 2024 | Volume : 14 | Issue : 03 | Page : 61 69
    By

    Srijan Shrivastava,

  • Harsh Rathore,

  1. Research Scholar, Department of Civil Engineering, Sanjeev Agarwal Global Educational University, Bhopal, Madhya Pradesh, India, ,
  2. Assistant Professor, Department of Civil Engineering, Sanjeev Agarwal Global Educational University, Bhopal, Madhya Pradesh, India, ,

Abstract

The incorporation of bacteria into concrete, through the process of Microbiologically Induced Calcite Precipitation (MICP), offers a promising approach to enhancing the mechanical properties and durability of concrete. This research explores the effect of bacterial addition on the compressive strength, split tensile strength, flexural strength, and workability of concrete. Specifically, three bacterial strains—Bacillus megaterium, Bacillus subtilis, and Pseudomonas aeruginosa—were used in varying concentrations (10⁴, 10⁵, and 10⁶ cells/ml) and incorporated into M20 grade concrete. The findings demonstrate that the addition of bacteria results improved workability without additional water demand, with bacterial concrete exhibiting better finishing characteristics. At 28 days, cube compressive strength increased by 24%, 19%, and 21% for Bacillus Megaterium, Bacillus Subtilis, and Pseudomonas Aeruginosa, respectively. Similarly, splitting tensile strength rose by 25%, 21.5%, and 23.6%, while flexural strength improved by 27%, 22.4%, and 24.4% for the same bacteria. Additionally, the study highlights the potential for improved performance due to bacterial activity within the concrete matrix, with possible applications for more sustainable and long-lasting construction materials.

Keywords: Bacterial concrete, bacillus megaterium, bacillus subtilis, pseudomonas aeruginosa, micp, compressive strength, tensile strength, flexural strength, sustainable concrete

[This article belongs to Journal of Construction Engineering, Technology & Management ]

How to cite this article:
Srijan Shrivastava, Harsh Rathore. Experimental Evaluation of Strength in Bacterial Concrete Mixtures. Journal of Construction Engineering, Technology & Management. 2024; 14(03):61-69.
How to cite this URL:
Srijan Shrivastava, Harsh Rathore. Experimental Evaluation of Strength in Bacterial Concrete Mixtures. Journal of Construction Engineering, Technology & Management. 2024; 14(03):61-69. Available from: https://journals.stmjournals.com/jocetm/article=2024/view=193103


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Regular Issue Subscription Original Research
Volume 14
Issue 03
Received 22/11/2024
Accepted 16/12/2024
Published 21/12/2024
258

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