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Full text release has been delayed at the author's request until August 22, 2027

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Development of Methods to Validate the Effectiveness of Self-Healing Concrete and Microbial Nutrients

Dahal, Puskar Kumar
http://rave.ohiolink.edu/etdc/view?acc_num=akron1668718288889008

Abstract Details

2022, Doctor of Philosophy, University of Akron, Civil Engineering.
Self-healing concrete is an innovative and challenging solution in the construction industry to self-repair cracks that appears on the concrete surface. Many researchers are actively working to find economical and effective methods to achieve self-healing that employ biological and chemical approaches. The main advantages of using self-healing concrete, which is commonly implemented using bacteria or various other substances, are a reduction in the repair costs for structures built using concrete and an increase in the reliability and durability of the structures. It is also a better alternative than traditional practices for repairing concrete cracks because it helps the concrete to retain its original appearance. Although self-healing is an excellent approach, it has not yet been commercialized because of limited experimental studies, a lack of systematic evaluation procedures, or unfeasible production costs. The work described in this dissertation is focused on the introduction of a microbial-based self-healing concrete that uses fungi, development of a suitable evaluation procedure for self-healing concrete and investigating the influence of the fungus and its nutrients on the cementitious material. It is assumed that a fungus-based self-healing concrete can be an economical method if the concrete properties remain intact and the nutrients allow the fungus to survive inside the concrete. Possible nutrients for the fungi are selected to verify this possibility, and the influence of the nutrients and fungi on the mortar and concrete is studied. In addition, a suitable analytical procedure has been proposed that can help to estimate the effectiveness of using self-healing concrete with respect to porosity and permeability.
Anil Patnaik (Advisor)
Ping Yi (Committee Member)
David Roke (Committee Member)
Lu-Kwang Ju (Committee Member)
Jun Ye (Committee Member)
253 p.
Civil Engineering; Engineering; Materials Science
Self-healing concrete, microbial nutrients, fungi, bacteria, water permeability, porosity, compressive strength, flexural strength

Recommended Citations

Citations

  • Dahal, P. K. (2022). Development of Methods to Validate the Effectiveness of Self-Healing Concrete and Microbial Nutrients [Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1668718288889008

    APA Style (7th edition)

  • Dahal, Puskar. Development of Methods to Validate the Effectiveness of Self-Healing Concrete and Microbial Nutrients. 2022. University of Akron, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1668718288889008.

    MLA Style (8th edition)

  • Dahal, Puskar. "Development of Methods to Validate the Effectiveness of Self-Healing Concrete and Microbial Nutrients." Doctoral dissertation, University of Akron, 2022. http://rave.ohiolink.edu/etdc/view?acc_num=akron1668718288889008

    Chicago Manual of Style (17th edition)

akron1668718288889008
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This open access ETD is published by University of Akron and OhioLINK.