Index Catalog // ScholarsArchive@OSU

Serviceability of Douglas-fir marine piles and control of their deterioration

Creator:: Helsing, Guy Gustav
Abstract:: In an exploratory survey of the serviceability of wood in the marine environment in the Pacific Northwest, pressure-creosoted piling with tops protected from wetting by the superstructure provided 40 and more years of service and showed little or no indication of deterioration. The service life of these piling is still...
Resource Type:: Masters Thesis

The development and use of breaking radius and impact bending tests for measuring wood strength loss caused by basidiomycetes isolated from air-seasoning Douglas-fir

Creator:: Sexton, Camille Marie
Abstract:: Douglas-fir utility poles are routinely air seasoned before treatment with chemical preservatives. Basidiomycetous fungi invade these poles and may cause strength loss during air seasoning or later if treatment temperatures are insufficient to kill the decay fungi. The purpose of this study was to develop a rapid test to asses...
Resource Type:: Masters Thesis

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:: degree of Master of Science in Wood Science presented on June 10, 2016. Title: Potential for Using

Dynamic modeling of thermal treatment of timber poles

Creator:: Sahle-Demessie, Endalkachew
Abstract:: The temperature-time-location relationships during steam conditioning and pressure treatment of timber poles have been studied and mathematical models that take into account both the thermal properties of the poles and the parameters of the treatment process have been developed. Although much work has been previously done in this area, the...
Resource Type:: Masters Thesis
Full Text:: wood an economical material to use in many fields. The normal useful service life of a treated pole is

Establishing a through-boring pattern and method of test for utility poles

Creator:: Elkins, Lori A.
Abstract:: The goal of this study was to optimize a through-boring pattern that will provide adequate preservative penetration while minimizing the reduction in overall pole bending strength. Hole spacing was developed using longitudinal and transverse chemical penetration data from previous studies. Finite element analysis was used as a preliminary assessment tool...
Resource Type:: Masters Thesis
Full Text:: current standard that governs wood utility pole specifications is the American National Standards

Correlation between mechanical strength of wood and annual ring characteristics in Douglas-fir juvenile and mature wood

Creator:: Choi, Allen Siu Chung
Abstract:: See pdf
Resource Type:: Masters Thesis

Ground Improvement and Liquefaction Mitigation using Driven Timber Piles

Creator:: Gianella, Tygh N.
Abstract:: Seismically-induced liquefaction represents a major cause of damage to civil infrastructure and can result in significant damage following major earthquakes. Liquefaction can occur when earthquake ground motions raise pore-water pressures in loose, sandy soil, resulting in a substantial decrease of soil strength. Owing to the potential for instability following liquefaction,...
Resource Type:: Masters Thesis
Full Text:: Dawley Surveying, Cox Wood Industries, and Hayward Baker, Inc. Without the support of all of these

Using Acoustic Measurements and Inventory Data to Estimate Stiffness in Standing Douglas-Fir Trees

Creator:: Delgado Trejo, Jorge Luis
Abstract:: Total US lumber production in 2011 was 77.9 million cubic meters. Its primary use was for housing and construction. There is a growing concern that the structural properties for wood are being reduced as trees are harvested at much younger ages as the wood supply shifts from older to younger...
Resource Type:: Masters Thesis
Full Text:: acoustic measurement of wood stiffness. Forest Products Journal, 58 (11): 42-47. Auty, A., and Achim, A

Evaluation of six tools for estimating woody biomass moisture content

Creator:: Becerra Ochoa, Fernando Amador
Abstract:: Woody biomass transportation costs and market values/costs are strongly correlated with the woody biomass moisture content. Properly managing moisture content can potentially lead to economic and environmental advantages in biomass energy markets. Good management requires accurate moisture content measurements. Therefore, availability of accurate, precise, reliable, and efficient tools to assess...
Resource Type:: Masters Thesis
Full Text:: ) were evaluated. The six tools employed three different measurement technologies; acoustic

Evaluation of a prototype NIR system for Douglas-fir wood density estimation

Creator:: Belart Lengerich, Maria Francisca
Abstract:: Forest products companies in the U.S. face vigorous competition from other wood producers around the world and other industries (steel, aluminum, plastics, composites). To be competitive, forest companies need to control costs, sort and allocate logs to the most appropriate markets, and recover more value at time of harvest. Interest...
Resource Type:: Masters Thesis
Full Text:: other single measurement. Perhaps it is for this reason that density was the first wood property to

ScholarsArchive@OSU

Serviceability of Douglas-fir marine piles and control of their deterioration

The development and use of breaking radius and impact bending tests for measuring wood strength loss caused by basidiomycetes isolated from air-seasoning Douglas-fir

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

Dynamic modeling of thermal treatment of timber poles

Establishing a through-boring pattern and method of test for utility poles

Correlation between mechanical strength of wood and annual ring characteristics in Douglas-fir juvenile and mature wood

Ground Improvement and Liquefaction Mitigation using Driven Timber Piles

Using Acoustic Measurements and Inventory Data to Estimate Stiffness in Standing Douglas-Fir Trees

Evaluation of six tools for estimating woody biomass moisture content

Evaluation of a prototype NIR system for Douglas-fir wood density estimation

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