Index Catalog // ScholarsArchive@OSU

Effect of Initial Preservative Treatment on Electrical Conductivity in Douglas-Fir Pole Sections

Creator:: Jeffrey J. Morrell, Milo Clauson, and Connie S. Love
Abstract:: The effect of copper naphthenate treatment on electrical resistance of Douglas-fir utility poles was compared with similar poles either left untreated or treated with pentachlorophenol (penta). Penta-treated and untreated wood had similar electrical resistance shortly after treatment and after a 3-month outdoor weathering period. Electrical resistance of copper naphthenate– treated...
Resource Type:: Article
Full Text:: Electrical Conductivity in Douglas-Fir Pole Sections Jeffrey J. Morrell Milo Clauson Connie S. Love

Wood Pole Maintenance Manual : 2012 Edition

Creator:: Morrell, Jeffrey J.
Abstract:: The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other defects, and chemical treatments available for arresting decay of poles in service.
Resource Type:: Technical Report

Resistance of Selected Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures

Creator:: Morrell, Jeffrey J.
Abstract:: The resistance of three naturally durable heartwood species and a stranded giant bamboo product to fungal and termite (Coptotermes formosanus) attack was evaluated at a test site located near Hilo, Hawaii. Merbau (Intsia bijuga or I. palembanica) and ipe (Tabebuia spp.) were both exceptionally resistant to fungal and termite attack,...
Resource Type:: Article
Full Text:: Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures Jeffrey J. Morrell

Occurrence of preservative-treated wood in a wood recovery center in Western Oregon

Creator:: Morrell, Jeffrey J.
Abstract:: The amounts of treated wood present at a wood recycling center in western Oregon were surveyed over a 10-year period. Treated wood was found at 106 of 112 inspections, but the levels never exceeded 2 percent of the volume present. The amount of treated wood averaged 0.15 percent of the...
Resource Type:: Article
Full Text:: a Wood Recovery Center in Western Oregon Jeffrey J. Morrell Abstract The amounts of treated wood

Bioassaying wood preservatives with Aspergillus niger

Creator:: Morrell, Jeffrey J.
Abstract:: The bioassay with Aspergillus niger is a simple way of determining the presence and amount of pentachlorophenol or tributyltin oxide in wood, but it does not appear useful for measuring strongly fixed chemicals such as chromated copper arsenate, borate, and fluoride. Its effectiveness in detecting other preservatives has not been...
Resource Type:: Article
Full Text:: JeHrey J. Morrell Assistant Professor Department of Forest Products, College of Forestry Oregon State

Decomposition of metham sodium to methylisothiocyanate as affected by wood species, temperature, and moisture content

Creator:: Morrell, Jeffrey J.
Abstract:: The effect of various wood characteristics on decomposition of metham sodium to methylisothiocyanate in sixteen North American and Southeast Asian hardwoods and softwoods was investigated. While marked differences were noted in the degree of decomposition among some species, the relationship between decomposition and lignin content, extractive levels, wood pH, or...
Resource Type:: Article
Full Text:: AFFECTED BY WOOD SPECIES, TEMPERATURE, AND MOISTURE CONTENT1 Jefrey J. Morrell Assistant Professor

Ability of plant-derived oils to inhibit dampwood termite (Zootermopsis augusticollis) activity

Creator:: Fatima, Rushda and Morrell, Jeffrey J.
Abstract:: The potential effects of plant derived oils on survival of dampwood termite (Zootermopsis augusticollis) workers was explored on western white pine sapwood blocks. All of the oils rapidly affected protozoa in the hindgut of termite workers and protozoa loss was closely followed by worker mortality. The effects were most rapid...
Resource Type:: Article
Full Text:: INHIBIT DAMPWOOD TERMITE (Zootermopsis augusticollis) ACTIVITY Rushda Fatima 1, Jeffrey J. Morrell 2

Effect of treatment postfixation practices on copper migration from alkaline-copper-treated Douglas-fir lumber

Creator:: Ye, Min and Morrell, Jeffrey J.
Abstract:: The potential for preservative migration from treated wood exposed in or above aquatic environments has become a major concern in some parts of the United States. Best management practices (BMP) were designed to decrease the potential environmental footprint of treated wood, but there are few studies assessing the efficacy of...
Resource Type:: Article
Full Text:: -mail:jesie329958@hotmail.com Jeffrey J. Morrell*{ Professor Department of Wood Science & Engineering Oregon

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Creator:: Long, Brady and Morrell, Jeffrey J.
Abstract:: Preservative treatments are required whenever glued laminated beams are exposed outdoors. Treatments can be either water-based systems applied to individual laminations prior to layup or organic solvent–borne systems applied after the beams are fabricated. Water-based systems are not recommended for posttreatment because of concerns over checking and the potential for...
Resource Type:: Article
Full Text:: Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams Brady Long Jeffrey J. Morrell

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

Creator:: Mankowski, Mark and Morrell, Jeffrey J.
Abstract:: The ability of white and brown rot fungi to colonize wood-plastic composites was investigated by measuring weight loss and anatomical changes. Three composite materials were evaluated. The material containing a 70/30 wood-high density polyethylene (HDPE) mixture was most susceptible to fungal attack, while two different 50/50 wood-HDPE composites experienced little...
Resource Type:: Article
Full Text:: growth, although most of the growth appeared to be concentrated near the Munkowski und Morrell

ScholarsArchive@OSU

Effect of Initial Preservative Treatment on Electrical Conductivity in Douglas-Fir Pole Sections

Wood Pole Maintenance Manual : 2012 Edition

Resistance of Selected Wood-Based Materials to Fungal and Termite Attack in Non–Soil Contact Exposures

Occurrence of preservative-treated wood in a wood recovery center in Western Oregon

Bioassaying wood preservatives with Aspergillus niger

Decomposition of metham sodium to methylisothiocyanate as affected by wood species, temperature, and moisture content

Ability of plant-derived oils to inhibit dampwood termite (Zootermopsis augusticollis) activity

Effect of treatment postfixation practices on copper migration from alkaline-copper-treated Douglas-fir lumber

Effects of Postlayup Borate Treatment on Appearance and Flexural Properties of Douglas-Fir Glued Laminated Beams

Patterns of fungal attack in wood-plastic composites following exposure in a soil block test

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