Index Catalog // ScholarsArchive@OSU

The effects of tree position and silvicultural practices on treatability of Douglas-fir lumber

Creator:: Hong, Seungdo
Abstract:: In spite of the lack of accurate information about the treatability of western wood species with waterborne wood preservatives, consumption of these products continues to increase. Western wood species, notably Douglas-fir, are notoriously difficult to treat with waterborne systems, yet there is relatively little data on the effects of wood...
Resource Type:: Masters Thesis
Full Text:: from the wood surface. The wood from these zones was ground to pass a 30 mesh screen using a Wiley

Controlling biodeterioration of western wood species with over- the-counter wood preservatives

Creator:: Newbill, Mark A.
Abstract:: Over-the-counter (OTC) wood preservatives can provide wood with both a moisture barrier and fungicidal protection against biodeterioration, yet there is little comparative data on the performance of these preservatives. In this study, the potential of various low-toxicity, OTC preservatives was evaluated on five western wood species, western red cedar (Thuja...
Resource Type:: Masters Thesis
Full Text:: Literature Review 3 Natural Durability 3 Decay Fungi 5 Wood preservation 7 3.0 Objective 12 4.0 Materials

Characterization of Fungal Communities in Selected Wood Species by Field Exposure Tests

Creator:: Torres-Andrade, Paola A.
Abstract:: Fungi are the primary biological agents of wood deterioration and cause major economic losses of wood products globally. Wood in outdoor applications tends to remain wet for extended time periods, making it susceptible to fungal attack. Understanding the factors involved in fungal colonization of wood is important for developing improved...
Resource Type:: Dissertation
Full Text:: Torres-Andrade for the degree of Doctor of Philosophy in Wood Science presented on December 5, 2017

Potential for Using Boron Compounds with Differing Water Solubilities in Pastes for Remedial Treatment of Utility Poles

Creator:: Uysal, Selim
Abstract:: Boron and boron compounds have been long used for pressure treatment, dip-diffusion, and remedial treatments of wood because of their proven efficacy against fungi and insects. These materials are especially attractive because their high water solubility promotes deeper penetration into wood. Other useful properties of boron include its neutral pH,...
Resource Type:: Masters Thesis
Full Text:: ....................................................................................................... 6 2.3 Wood Preservation: Mode of Action

Supercritical fluid impregnation with biocides of wood using temperature reduction

Creator:: Kang, Sung-Mo
Abstract:: Supercritical fluid (SCF) impregnation is a promising preservative treatment method, however, the development of SCF processes has been slowed by a limited understanding of the process. Developing a better understanding of the effects of various process parameters on treatment results would allow for a more rational development of SCF impregnation....
Resource Type:: Dissertation
Full Text:: the process that might result in biocide movement from the interior to the surface in wood. Redacted

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

Creator:: Schneider, Philip F.
Abstract:: Two approaches to improving wood treatability include the modification of pressure schedules during conventional liquid treatments and the use of supercritical fluids (SCFs). In both of these techniques, pressure differences are important for transporting materials into wood. The level of pressure and its change during SCF treatments are also important...
Resource Type:: Dissertation

Vapor copper : a potential wood preservative

Creator:: He, Wenlong
Abstract:: This study seeks to determine the feasibility of utilizing one vaporizable copper compound - bis-[1- (dimethylamino)-2-propanolato] copper(II) (Cu(DMAP)₂ as a potential wood preservative. The synthesis of Cu(DMAP)₂ was conducted in accordance with a method developed by Buhro and Dingman, Washington University, St. Louis, Missouri. The yields of Cu(DMAP)₂ synthesis were...
Resource Type:: Masters Thesis

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:: Management 3 Practices (BMPs) to reduce over-treatment, clean the wood surface of

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:: resources, the early European railroads were quick to adopt some of these wood preservation methods for

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Creator:: Anderson, Matthew E.
Abstract:: It is difficult to treat the heartwood of many wood species with liquid preservatives using conventional liquid processes. Supercritical fluids (SCF) used as carriers of preservatives to impregnate refractory wood species may be an attractive alternative to conventional liquid carriers. While SCF impregnation has many potential advantages, some wood species...
Resource Type:: Masters Thesis
Full Text:: lower surface tension compared to water, however, because water has a strong affinity to wood, it

ScholarsArchive@OSU

The effects of tree position and silvicultural practices on treatability of Douglas-fir lumber

Controlling biodeterioration of western wood species with over- the-counter wood preservatives

Characterization of Fungal Communities in Selected Wood Species by Field Exposure Tests

Potential for Using Boron Compounds with Differing Water Solubilities in Pastes for Remedial Treatment of Utility Poles

Supercritical fluid impregnation with biocides of wood using temperature reduction

Pressure measurement in wood as a method to understand impregnation processes : conventional and supercritical carbon dioxide

Vapor copper : a potential wood preservative

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

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

The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

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