Issue 68

K. W. Nindhita et alii, Frattura ed Integrità Strutturale, 68 (2024) 140-158; DOI: 10.3221/IGF-ESIS.68.09

Effect of Bacillus Subtilis Bacteria on the mechanical properties of corroded self-healing concrete

Kharisma Wira Nindhita, Ahmad Zaki* Magister of Civil Engineering, Postgraduate Program, Universitas Muhammadiyah Yogyakarta, Indonesia Civil Engineering Department, Faculty of Engineering, Universitas Muhammadiyah Yogyakarta, Indonesia kharismawiranindhita2@gmail.com, ahmad.zaki@umy.ac.id Abdullah M. Zeyad Civil Engineering Department, Jazan University, Saudi Arabia azmohsen@jazanu.edu.sa

Citation: Nindhita, K. W., Zaki, A., Zeyad, A. M., Effect of Bacillus Subtilis Bacteria on the mechanical properties of corroded self healing concrete, Frattura ed Integrità Strutturale, 68 (2024) 140-158.

Received: 05.09.2023 Accepted: 22.01.2024 Published: 26.01.2024 Issue: 04.2024

Copyright: © 2024 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Self-Healing Concrete, Bacillus bacteria, Corrosion, Mechanical Properties, Reinforced Concrete.

I NTRODUCTION

oncrete is an excellent material in infrastructure development, including buildings, road pavements, drainage, dams, bridges, and railroad sleepers [1]. Concrete material usage has expanded globally from 2.8 to 4.08 billion tons in 2019 [2]. The type of concrete that is most widely used currently is reinforced concrete. Reinforced concrete combines conventional concrete's properties, which are resistant to compressive strength, and steel, resistant to bending or bending strength [3]. Adding steel reinforcement to concrete can increase the flexural strength value of concrete [4]. However, steel reinforcement also has a weakness against corrosion hazards. Steel reinforcement corrosion is considered a global problem in construction that leads to the deterioration of concrete structures [5]. Steel corrosion in concrete causes C

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