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Sustainability assessment, structural performance and challenges of self-healing bio-mineralized concrete: A systematic review for built environment applications
Faculty
Engineering
Year:
2023
Type of Publication:
ZU Hosted
Pages:
NA
Authors:
Yasser Ramadan Ali Alashkar
Staff Zu Site
Abstract In Staff Site
Journal:
Journal of Building Engineering Elsevier BV
Volume:
NA
Keywords :
Sustainability assessment, structural performance , challenges , self-healing
Abstract:
The self-healing (SH) of cracks in concrete using bacteria without the need for manual involve- ment is a viable answer to the problem of long-term concrete sustainability. When provoked, ‘ureolytic bacteria,’ such as Bacillus pasteurii or Bacillus subtilis, which produce ‘urease’ enzymes in the rumen, can produce precipitations of calcium carbonate (CaCO3) in the concrete. Because their cell wall is anionic, CaCO3 accumulates on the surface in large amounts, causing the entire cell to crystallize and eventually clog pores and fissures. This approach of spontaneous induction is an atmospherically beneficial way upon which experts are currently researching. In the present study, the use of bacteriological healing to produce autonomous SH microbial concrete is dis- cussed. It also includes an extensive review of various characteristics of these new concrete types that depict the differences in the auto-addition of various bacteria, as well as an assessment of the healing of cracks because of the addition of bacteria in concrete in a shell that is protective. Relative evaluation methodologies for autonomous and bio-based SH too are reviewed, along with progress, ability, modalities of application, as well as the resulting benefits in terms of durability and strength. The impact of bacteria on the stiffness and compressive strength (CS) of cement paste cubes is also taken into account. The importance of bacteria in microbiologically induced mineral precipitation is also examined using scanning electron microscope (SEM) anal- ysis. Finally, the scope of upcoming investigations and current research gaps are identified and elaborated. Results indicated that the CaCO3 precipitation in the concrete could be attributable to the presence of various ions in the media. Therefore, bio-mineralized concrete has minimized permeability and porosity. The addition of Bacillus subtilis and Sparcious pasteurii species to concrete lessened chloride penetration, enhancing the falling tendency of the sulfate-exposed concrete mass.
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Yasser Ramadan Ali Alashkar , "Effect of Treated/Untreated Recycled Aggregate Concrete: Structural Behavior of RC Beams", MDPI, 2024
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Yasser Ramadan Ali Alashkar , "Artificial neural networks approach for prediction of axial loading capacity of circular normal strength concrete columns confined by both transverse steel reinforcement and carbon fiber reinforced polymer wraps", SAGE Publications Inc., 2022
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Yasser Ramadan Ali Alashkar , "Effect of Earthquake loads on School Buildings in the Kingdom of Saudi Arabia", Salehan Institute of Higher Education, 2019
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Yasser Ramadan Ali Alashkar , "Data-Driven Prediction of Compressive Strength of FRP-Confined Concrete Members: An Application of Machine Learning Models", Techno Press, 2022
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Yasser Ramadan Ali Alashkar , "Development of eco-friendly alkali-activated nanocomposites comprising micro-fibers at ambient curing conditions.", (Elsevier), 2022
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Department Related Publications
Elsayed saad Abdelsalam Salman, "A. Elshihy, S. Abdel Salam, A. Gehad, ”ANALYSES OF CONTINUOUS STRIP FOOTING WITH A LOSS OF SUPPORT”, Proceedings of 2 nd - Conf. on Civil Engg., Military Tecl. College, Cairo, 1994.", Proceedings of 2 nd - Conf. on Civil Engg., Military Tecl. College, Cairo,, 1994
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Elsayed saad Abdelsalam Salman, "S. Abdel Salam, “REINFORCED CONCRETE DOUBLE SHORT CANTILEVER: FINITE ELEMENT ANALYSIS”, Proceeding of 1st Egyptian Structural Engineering Conf. Cairo Univ., 22-25 April, 1985.", Proceeding of 1st Egyptian Structural Engineering Conf. Cairo Univ., 1985
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Elsayed saad Abdelsalam Salman, "S. Abdel Salam, “A REINFORCED CONCRETE DOUBLE CORBLE : FINITE ELEMENT ANALYSIS ”, Proceedings of Second Arab Conf. on Structural Eng., Faculty of Engineering & Technology, Jordan Univ., 19-22 April, 1987, Amman.", Proceedings of Second Arab Conf. on Structural Eng., Faculty of Engineering & Technology, Jordan Univ., Amman., 1987
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Mohammed Reda Ali Elewa, "Numerical Modeling of Time-Displacement Response of RC Slab Subjected to Impact Loading", IOSR Journals, 2019
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