+++ date = "2015-06-21T12:19:11-08:00" draft = false title = "MRD Civil Engineering Thesis Info" aliases = [ "/pages/mrd-ce-ms/index.html" ] +++ ### Abstract > Frost heave is typically associated with the formation of segregation ice in > fine-grained soil. Coarse-grained soil is generally considered to be non-frost > susceptible. Field observations and laboratory experiments show that > coarse-grained soil can be extremely ice-rich in specific conditions. Previous > studies have shown that oscillation of the frozen-unfrozen boundary can lead to > the formation of ice by a mechanism different from the segregation ice > mechanism. Conditions related to the formation of ice in coarse-grained soil > were investigated using modern laboratory techniques. Fourteen tests were > conducted on five soil types. The thickness of soil subjected to freeze-thaw > cycles was varied and controlled by the magnitude and duration of applied soil > temperatures. The thickness of the ice formed increased when the sample > drainage was limited or prevented during cooling. Under specific conditions, > the formation of a discrete ice layer was observed in coarse-grained soils. > Seven samples were scanned with the μCT scanner at the completion of the > warming and cooling tests. The sub-samples scanned were analyzed in 2D > cross-sections, and characterized as 3D reconstructions. Frost heave induced > by the formation of ice was observed in both fine- and coarse-grained soils, > including soils that were found to be traditionally non-frost susceptible. ### [Download](https://storage.googleapis.com/thermokarst-misc/ce_thesis/MRDillonCEThesisManuscript.pdf) PDF format manuscript, 166 pages. Science Commons, 2012. ### [Appendix Material]({{< relref "mrd_ce_thesis/movies" >}})