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Filtering by: Creator Webb, Molly A. H. Remove constraint Creator: Webb, Molly A. H. Advisor Morrell, Jeffrey J. Remove constraint Advisor: Morrell, Jeffrey J. Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Development of a test method for assessing water repellency and derived physical stability of preservative systems for railroad ties

    Creator:
    Beck, H. Greeley
    Abstract:
    Resistance to moisture uptake is an important attribute of some wood preservatives and can help reduce moisture cycling that leads to the development of deep checks. While the potential for preservative treatments to help improve wood/moisture interactions is acknowledged, there are no tests that specifically evaluate this performance parameter. Checking...
    Resource Type:
    Masters Thesis
    Full Text:
    . ©Copyright by H. Greeley Beck September 22, 2014 All Rights Reserved Development of a Test Method

  • The Effect of Sill Height on Decay in Air-Seasoning Crossties

    Creator:
    Rogers, Leon R.
    Abstract:
    The sustainable use of wood for rail ties requires chemical treatment to increase service life and maintain structural integrity. Treatment can only be applied after lengthy air-seasoning to reduce moisture content in wood, but seasoning leaves ties exposed to attack by decay fungi for up to a year. One factor...
    Resource Type:
    Masters Thesis
    Full Text:
    during the seasoning period (Conners 2008; Thompson & Koch 1981; Webb et al. 2016). Decay fungi are a

  • The phytosanitation of solid wood packaging materials using wood preservatives

    Creator:
    Schauwecker, Christoph F.
    Abstract:
    New species introductions have been associated with the movement of people for thousands of years. For instance, horses were introduced into North America by Spanish explorers, while pigs were introduced by the Polynesians into many Pacific islands long before the establishment of permanent European settlements. Both of these species introductions...
    Resource Type:
    Masters Thesis
    Full Text:
    container and the wooden pallet, allow goods to be moved rapidly in a protected environment. This

  • Effects of best management practices on copper migration from Douglas-fir lumber treated with ACZA, CA or ACQ

    Creator:
    Ye, Min
    Abstract:
    Copper is the most common ingredient in waterborne preservatives and provides excellent activity against most fungi and insects. However, issues associated with copper migration from treated wood have created increasing concerns about potential risks to non-target organisms in surrounding environments, especially those in sensitive aquatic environments. Various Best Management Practices...
    Resource Type:
    Masters Thesis
    Full Text:
    polycyclic aromatic hydrocarbons (PAHs) (Webb, 1990). It is made from coal tar which is a by- product of

  • Performance of copper based biocides in potentially copper tolerant soils

    Creator:
    Chang, Andrew B.
    Abstract:
    Copper is an excellent biocide which has a long history of usage for protecting wood from deterioration, but some organisms have developed tolerance for this chemical. Copper tolerance among wood decay fungi is a poorly understood phenomenon that is gaining importance as cofactors such as arsenic and chromium are removed...
    Resource Type:
    Masters Thesis
    Full Text:
    excellent biocide which has a long history of usage for protecting wood from deterioration, but some