• Login
    View Item 
    •   Home
    • University of Alaska Fairbanks
    • Undergraduate Research and Scholarly Activity
    • 2014 Research Day Posters
    • View Item
    •   Home
    • University of Alaska Fairbanks
    • Undergraduate Research and Scholarly Activity
    • 2014 Research Day Posters
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of Scholarworks@UACommunitiesPublication DateAuthorsTitlesSubjectsTypeThis CollectionPublication DateAuthorsTitlesSubjectsType

    My Account

    Login

    First Time Submitters, Register Here

    Register

    Statistics

    Display statistics

    Using an NMR Device to Determine Unfrozen Water Content in Frozen Soil

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Miao Yan R Day 2014.pdf
    Size:
    1.528Mb
    Format:
    PDF
    Description:
    Research Poster
    Download
    Author
    Miao, Yan
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/11122/3469
    Abstract
    The overall goal of our research project is to study the unfrozen water mass and mobility in frozen soils. During this project, frozen samples of standard clays with different adsorbed cations will be analyzed to determine their surface potential, micro-fabric, and how they interact with unfrozen water. The amount of unfrozen water content at sub-freezing temperatures is measured using a nuclear magnetic resonance (NMR) device. Before using the NMR to test the unfrozen water content, we developed a system to control and stabilize the temperature of the soil sample during the test. We determined that the optimal sample length detected by the NMR is 3.5 cm. Nine duplicate silt samples each with a different moisture content were prepared and tested using the NMR. The result demonstrated a linear relationship between the moisture content of the silt samples and the corresponding NMR signal intensities, thus validating the NMR approach. Future test will be conducted on frozen cation-exchanged clay samples to determine their unfrozen water contents as a function of temperature.
    Date
    2014-04-29
    Type
    Poster
    Collections
    2014 Research Day Posters

    entitlement

     
    ABOUT US|HELP|BROWSE|ADVANCED SEARCH

    The University of Alaska Fairbanks is an affirmative action/equal opportunity employer and educational institution and is a part of the University of Alaska system.

    ©UAF 2013 - 2023 | Questions? ua-scholarworks@alaska.edu | Last modified: September 25, 2019

    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.