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.

Language

  • English

Project

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

    20CLSU05

  • 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

    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

Filing Info

  • Accession Number: 01757486
  • Record Type: Research project
  • Source Agency: Transportation Consortium of South-Central States
  • Contract Numbers: 20CLSU05
  • Files: UTC, RiP
  • Created Date: Nov 10 2020 7:25AM