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Freeze-thaw durability and long term performance evaluation of shotcrete in cold regions

  • CESTiCC Project Number
    Principal Investigator(s)

    Pizhong Qiao

    Project Dates
    • Start: September 2016
    • End: December 2017
  • Funding Agency
    CESTiCC, Washington State DOT
    Project Budget

Project Information

The goal of this project is to evaluate and predict degradation and durability of shotcrete in cold region using accelerated conditioning and fracture tests and damage mechanics models. The objectives of the proposed study are four-fold: (1) To conduct a combined accelerated freeze/thaw (F/T) conditioning, nano-CT and cohesive fracture tests to characterize the long term performance of shotcrete (Task A); (2) To evaluate damage accumulation in shotcrete due to low temperature and F/T cycling using phenomenological-based damage mechanics models and understand the failure mechanisms and potential for long-term deterioration of shotcrete (Task B); (3) In collaboration with the WSDOT and AKDOT&PF, to correlate and validate the prediction models with the field data and establish the baseline criteria for long term performance (Task C), and (4) To develop recommendations for test methods on long term performance characterization of shotcrete in cold regions and provide guidelines for DOTs to evaluate shotcrete performance and safety in the cold regions (Task D).

For more information, please review the Project Information document.

Project Products

  • Center for Environmentally Sustainable Transportation in Cold Climates (CESTiCC)
  • PO Box 75 5900
  • Fairbanks, AK 99775-5900