A Mechanistic Investigation of Concrete Tie Degradation in the Rail Seat

Concrete rail ties often degrade prematurely at the rail seat. Such deterioration has been investigated by other researchers, but such studies have generally associated deterioration with a single environmental or mechanical source. In contrast, it is hypothesized here that rail seat degradation is due to a complex coupling of environmental and mechanical sources. Based on this unique perspective, the proposed research is aimed at developing an advanced poroelastic model and a novel, lab-scale model rail seat experiment in order to elucidate the role of enviro-mechanical coupling. Furthermore, based on the model predictions – validated by the experiments – new concrete mixture design and curing protocols that reduce the risk of damage to the rail seat will be crafted.

Language

  • English

Project

  • Status: Active
  • Funding: $75,000
  • Contract Numbers:

    DTRT13-G-UTC59

  • Sponsor Organizations:

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Managing Organizations:

    Texas A&M University, College Station

    Zachry Department of Civil Engineering
    3136 TAMU
    College Station, TX  United States  77843-3136
  • Performing Organizations:

    Texas A&M University, College Station

    Zachry Department of Civil Engineering
    3136 TAMU
    College Station, TX  United States  77843-3136
  • Principal Investigators:

    Grasley, Zachary

  • Start Date: 20160501
  • Expected Completion Date: 20171201
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01601812
  • Record Type: Research project
  • Source Agency: University Transportation Center for Railway Safety
  • Contract Numbers: DTRT13-G-UTC59
  • Files: UTC, RiP
  • Created Date: Jun 8 2016 5:16PM