Innovative Bio-Mediated Particulate Materials for Sustainable Maritime Transportation Infrastructure

Innovative bio-mediated particulate materials may provide great and previously unexplored opportunities as cost-effective and sustainable construction materials for maritime transportation infrastructure. To address this need, and building upon its experience and expertise in the area, this project propose multidisciplinary effort to evaluate the mechanical properties of bio-mediated sandy soils attributable to the formation of microbially-induced calcite precipitation. The mechanical properties of sandy soils in the coastal area often do not satisfy construction expectation for maritime transportation infrastructure. The salty, loose sand makes it difficult for quick construction of port, building and roadway. Sometimes the weakness and unpredictability of soil properties can lead to unexpected collapse. Biological techniques, such as microbially-induced calcite precipitation (MICP), can provide unexplored opportunities for cost-effective, in situ improvement of the engineering properties of sandy soil. As one of the natural process in mineral precipitation, MICP by urea hydrolysis can result in relatively insoluble compounds contributing to soil cementation. Previous research and testing has focused almost exclusively on the standard Ottawa sands due to its uniform pore size. As a result, little is known on the more problematic cases of sandy soils in the coastal area for the bio-mediated soil improvement. The much finer structure and salty condition are two unknown factors for the MICP.

  • Record URL:
  • Supplemental Notes:
    • The primary objective of the proposed research project is to develop bio-mediated particulate materials to enhance the resilience and protection of maritime transportation infrastructure elements. The advanced materials are based on MICP for the sandy soils in the coastal area. We’ve completed the experimental study of fine grained soils (silt and clay) on the effect of microbial improved sandy soil.

Language

  • English

Project

  • Status: Completed
  • Funding: $86250
  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

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

    Jackson State University, Jackson

    Department of Civil and Environmental Engineering
    Jackson, MS  United States  39217-0168
  • Principal Investigators:

    Wang, Feng

  • Start Date: 20151101
  • Expected Completion Date: 20170630
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01580867
  • Record Type: Research project
  • Source Agency: Maritime Transportation Research and Education Center
  • Files: UTC, RiP
  • Created Date: Nov 19 2015 12:08PM