• English
    • العربية
  • العربية
  • Login
  • QU
  • QU Library
  •  Home
  • Communities & Collections
  • Help
    • Item Submission
    • Publisher policies
    • User guides
    • FAQs
  • About QSpace
    • Vision & Mission
View Item 
  •   Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • University Publications
  • QU Conference Proceedings
  • International Conference on Civil Infrastructure and Construction (CIC 2023)
  • Theme 2: Advances in Infrastructure Sustainability, Renovation, and Monitoring
  • View Item
  • Qatar University Digital Hub
  • Qatar University Institutional Repository
  • Academic
  • University Publications
  • QU Conference Proceedings
  • International Conference on Civil Infrastructure and Construction (CIC 2023)
  • Theme 2: Advances in Infrastructure Sustainability, Renovation, and Monitoring
  • View Item
  •      
  •  
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure

    Thumbnail
    View/Open
    104.pdf (859.1Kb)
    Date
    2023
    Author
    Sohail, Muazzam Ghous
    Al Nuaimi, Nasser
    Kahraman, Ramazan
    Al Disi, Zulfa
    Zouari, Nabil
    Genturk, Bora
    Rodrigues Debora F.
    Yildirim, Yucel
    ...show more authors ...show less authors
    Metadata
    Show full item record
    Abstract
    In this study, bio-self-healing concrete was manufactured using a natural phenomenon called microbial-induced calcium carbonate precipitation (MICP). The bacillus cereus bacteria isolated from Qatari soil was used for this purpose. These bacteria have endured the harsh weather of high temperatures, humidity, and alkaline soil conditions. Hence, are a potential candidate for long-term self-healing in concrete structures that are subjected to the climate of the Middle Eastern region. The bacteria were encapsulated in sodium alginate beads then the beads were added to the cement-sand mortar. The nutrients for bacteria such as urea, calcium nitrate, yeast extract, and calcium chloride were mixed in mortar as dry constituents. After curing for 28 days, cracks were artificially induced in the prismatic samples, which were reinforced with steel rebars at the tensile side. Samples were placed in water to instigate self-healing. It was observed that the bacteria healed the cracks up to 0.70 mm. It is concluded that the used bacteria are viable in the alkaline concrete matrix and capable of producing calcium carbonate.
    DOI/handle
    http://dx.doi.org/10.29117/cic.2023.0104
    http://hdl.handle.net/10576/46807
    Collections
    • Biological & Environmental Sciences [‎931‎ items ]
    • Chemical Engineering [‎1195‎ items ]
    • Civil and Environmental Engineering [‎862‎ items ]
    • Theme 2: Advances in Infrastructure Sustainability, Renovation, and Monitoring [‎68‎ items ]

    entitlement


    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU

     

     

    Home

    Submit your QU affiliated work

    Browse

    All of Digital Hub
      Communities & Collections Publication Date Author Title Subject Type Language Publisher
    This Collection
      Publication Date Author Title Subject Type Language Publisher

    My Account

    Login

    Statistics

    View Usage Statistics

    About QSpace

    Vision & Mission

    Help

    Item Submission Publisher policiesUser guides FAQs

    Qatar University Digital Hub is a digital collection operated and maintained by the Qatar University Library and supported by the ITS department

    Contact Us | Send Feedback
    Contact Us | Send Feedback | QU

     

     

    Video