Determination of the Optimal Parameters for Self-Healing Efficiency of Encapsulated Bacteria in Concrete in a Simulated Subtropical Climate

The main objective of this research study is to optimize self-healing mechanisms of encapsulated bacteria in concrete, and to evaluate whether a higher bacteria cell concentration, better nutrient selection, or an alternative encapsulation method is needed. These parameters will be first tested in mortar beams with respect to self-healing efficiency, and depending on the results, further testing will be carried out in concrete specimens. The efficiency of the proposed bio-concrete will be tested to evaluate the bacteria’s effect on concrete’s intrinsic properties such as compressive strength and static modulus of elasticity, and monitor the self-healing efficiency through crack repair throughout 28 wet-dry cycles (consisting of 8-hours of water immersion and 16-hours of drying). If successful, this project will move to implementation through field-testing in Region 6, where it will help to preserve and enhance the performance of the concrete transportation infrastructure.

• Record URL:
  https://transet.lsu.edu/research-in-progress/
• Supplemental Notes:
  • 20CLSU05

Language

• English

Project

• Status: Completed
• Funding: $135000
• Contract Numbers:

  69A3551747106

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Transportation Consortium of South-Central States (Tran-SET)

  Louisiana State University
  Baton Rouge, LA  United States  70803
• Project Managers:

  Mousa, Momen

• Performing Organizations:

  Louisiana State University

  3660G Patrick F. Taylor Hall
  Civil and Environmental Engineering
  Baton Rouge, LA  United States  70803
• Principal Investigators:

  Mousa, Momen

• Start Date: 20200801
• Expected Completion Date: 20220201
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bacteria; Concrete; Durability; Encapsulation; Repairing
• Subject Areas: Design; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01757486
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States (Tran-SET)
• Contract Numbers: 69A3551747106
• Files: UTC, RIP
• Created Date: Nov 10 2020 3:12PM