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Comparison of Microbially Induced Healing Solutions for Crack Repairs of Cement-Based Infrastructure

Author

Listed:
  • John Milan van der Bergh

    (Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK)

  • Bojan Miljević

    (Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Snežana Vučetić

    (Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Olja Šovljanski

    (Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Siniša Markov

    (Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Mike Riley

    (Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK)

  • Jonjaua Ranogajec

    (Faculty of Technology, University of Novi Sad, 21000 Novi Sad, Serbia)

  • Ana Bras

    (Built Environment and Sustainable Technologies (BEST) Research Institute, Liverpool John Moores University, Liverpool L3 2ET, UK)

Abstract

Reinforced concrete crack repair and maintenance costs are around 84% to 125% higher than construction costs, which emphasises the need to increase the infrastructure service life. Prolongation of the designed service life of concrete structures can have significant economic and ecological benefits by minimising the maintenance actions and related increase of carbon and energy expenditure, making it more sustainable. Different mechanisms such as diffusion, permeation and capillary action are responsible for the transport of fluids inside the concrete, which can impact on the structure service life. This paper presents data on microbially induced repair and self-healing solutions for cementitious materials available in the contemporary literature and compares results of compressive strength test and capillary water absorption test, which are relevant to their sealing and mechanical characteristics. The results of the repair and self-healing solutions (relative to unassisted recovery processes) were “normalized.” Externally applied bacteria-based solutions can improve the compressive strength of cementitious materials from 13% to 27%. The internal solution based solely on bacterial suspension had 19% improvement efficacy. Results also show that “hybrid” solutions, based on both bio-based and non-bio-based components, whether externally or internally applied, have the potential for best repair results, synergistically combining their benefits.

Suggested Citation

  • John Milan van der Bergh & Bojan Miljević & Snežana Vučetić & Olja Šovljanski & Siniša Markov & Mike Riley & Jonjaua Ranogajec & Ana Bras, 2021. "Comparison of Microbially Induced Healing Solutions for Crack Repairs of Cement-Based Infrastructure," Sustainability, MDPI, vol. 13(8), pages 1-17, April.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:8:p:4287-:d:534712
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    References listed on IDEAS

    as
    1. Hyunsik Kim & Sungho Tae & Yonghan Ahn & Jihwan Yang, 2020. "Scenarios for Life Cycle Studies of Bridge Concrete Structure Maintenance," Sustainability, MDPI, vol. 12(22), pages 1-13, November.
    2. Elżbieta Stanaszek-Tomal, 2020. "Bacterial Concrete as a Sustainable Building Material?," Sustainability, MDPI, vol. 12(2), pages 1-13, January.
    Full references (including those not matched with items on IDEAS)

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