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Creator:: Smith, Susan M., Demessie, E. Sahle, Morrell, Jeffrey J., Levien, Keith L., and Ng, Harry
Abstract:: Adverse effects on mechanical properties from using a supercritical fluid (SCF) to increase preservative penetration of refractory woods were evaluated by treating small ponderosa pine sapwood specimens with supercritical carbon dioxide at 64 combinations of temperatures (35 to 80 C), pressure (1,000 to 4,000 psig), and time (0.5 to 2...
Resource Type:: Article
Full Text:: of Forest Products Oregon State University Corvallis, OR 9733 1 E. Sahle Demessie Graduate

Creator:: Gezer, Engin Derya, Michael, Judd H., and Morrell, Jeffrey J.
Abstract:: Although boron has many advantages as a wood preservative, this chemical performs poorly in leaching exposures. In this study, we investigated the potential for decreasing the leachability of boron preservatives with polyethylene glycol (PEG). Southern pine (Pinus spp.) test samples impregnated with combinations of sodium borate or boric acid and...
Resource Type:: Article
Full Text:: ,,d I rbr,- .S< retr<e, i l i 2 ) . 1999. pp. 136-142 < Ic)')V h i thc Soclrt? ot Wood Sclencr .~nd

Creator:: Morrell, Jeffrey J., Freitag, Camille M., Chen, H., and Love, C.
Resource Type:: Technical Report
Full Text:: r), H t. abov e G L (cms.) C o p p er K g /M 3 3 ye ar 5 ye ar 8 ye ar 10 ye ar 15 ye ar

Creator:: Morrell, Jeffrey J., Freitag, Camille M., Chen, H., and Love, C.
Resource Type:: Technical Report
Full Text:: with 200 g of dazomet plus copper sulfate; Y e a r 1 0 1 01 0 -2 0-1 5-1 0-5 0 5 1 01 52 0 H ei

Creator:: Morrell, Jeffrey J., Freitag, Camille M., Chen, H., and Love, C.
Resource Type:: Technical Report
Full Text:: ://www.cof.orst.edu/coops/utilpole/ By: J.J. Morrell C. Freitag H. Chen C. Love Cooperators P Bonneville Power

Creator:: Mitchoff, M. E. and Morrell, Jeffrey J.
Abstract:: Alder represents an abundant but underutilized resource that has little natural resistance to decay. Treated alder might be used for stakes, posts, or other nonstructural applications. The performance of alder treated with chromated copper arsenate (CCA), copper 8 quinolinolate, zinc naphthenate (ZN), or thiocyanomethylthiobenzothiazole (TCMTB) was assessed in soil block...
Resource Type:: Article
Full Text:: ALDER' M. E. Mitchof and J. J. Morrell Undergraduate Student and Assistant Professor Department of

Creator:: Winandy, Jerrold E. and Morrell, Jeffrey J.
Abstract:: This report describes the relationship of incising-induced strength loss in bending as a function of preservative treatment and incising pattern, density, and depth of penetration for various machine stress-rated (MSR) grades of full-size 2 by 4 Douglas-fir, Hem-Fir, and Spruce-Pine-Fir (South) dimension lumber. This study may represent a worst-case "incising...
Resource Type:: Article
Full Text:: weight in 23°C (74°F) and 65% rel- - ative humidity conditions. ~ 1 1 material was T h e u s e of

Creator:: Winandy, Jerrold E. and Morrell, Jeffrey J.
Abstract:: A new laboratory technique to simulate the initiation of wood decay and to assess the effects of incipient decay on material properties is described. Douglas-fir heartwood specimens were exposed to brown-rot (Postia placenta and Gloeophyllum trabeum) fungi for various periods. Bendlng properties were determined by nondestructive and destructive tests, and...
Resource Type:: Article
Full Text:: COMPOSITION OF DOUGLAS-FIR HEARTWOOD Jerrold E. Winandy Research Wood Scientist USDA Forest Senice

Creator:: Corden, Malcolm E. and Morrell, Jeffrey J.
Abstract:: A small-scale test was developed to evaluate the ability of fungicides to control decay fungi established in wood. The test, which uses blocks 2.5 x 2.5 x 10 cm, tests the ability of a chemical to migrate from the middle of the block to control a previously established decay fungus,...
Resource Type:: Article
Full Text:: Eastman Kodak Eastman Kodak Buckman Lab., Inc. Chevron Chem. Co. Osmose Wood Pres. J. H. Baxter

Creator:: Morrell, Jeffrey J., Corden, M. E. (Malcolm E.), and Oregon State University. Department of Forest Products
Abstract:: This seventh annual report outlines our continued progress on each of six objectives. Improved fumigants: We continue to evaluate previously established field tests, which inlicate that chioropicrin continues to protect Douglas-fir poles after 17 years and piling after 12 years. Vorlex treated poles are being gradually recolonized by decay fungi,...
Resource Type:: Technical Report
Full Text:: , c:s2 , am CX>S from Vapam or MIT treated Douglas-fir heartwood •..•• E. M::>VEMENT AND

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