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المؤلفSohail, Muazzam Ghous
المؤلفAl Nuaimi, Nasser
المؤلفKahraman, Ramazan
المؤلفAl Disi, Zulfa
المؤلفZouari, Nabil
المؤلفGenturk, Bora
المؤلفRodrigues Debora F.
المؤلفYildirim, Yucel
تاريخ الإتاحة2023-08-27T05:58:12Z
تاريخ النشر2023
اسم المنشور2nd International Conference on Civil Infrastructure and Construction
الاقتباسSohail M.G., Al Nuaimi N., Kahraman R., Aldisi Z., Zouari N., Gencturk B., Rodrigues D. & Yildirim Y., "Bio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure", The 2nd International Conference on Civil Infrastructure and Construction (CIC 2023), Doha, Qatar, 5-8 February 2023, DOI: https://doi.org/10.29117/cic.2023.0104
الرقم المعياري الدولي للكتاب2958-3128
معرّف المصادر الموحدhttp://dx.doi.org/10.29117/cic.2023.0104
معرّف المصادر الموحدhttp://hdl.handle.net/10576/46807
الملخصIn 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.
اللغةen
الناشرQatar University Press
الموضوعBio Self-Healing Concrete
MICP
Bacillus Cereus
Autonomous Crack Filling
Infrastructure Durability
العنوانBio-Based Self-Healing Concrete for Sustainable and Durable Concrete Infrastructure
النوعConference Paper
الصفحات798-805
ESSN2958-3136
dc.accessType Open Access


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