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• 1. [Article] Marine wood maintenance manual : a guide for proper use of Douglas-fir in marine exposures

  Citation × Citation Citation Abstract Copy Title: Marine wood maintenance manual : a guide for proper use of Douglas-fir in marine exposures Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Helsing, Guy G., Graham, R. D. (Robert D.) Title: Marine wood maintenance manual : a guide for proper use of Douglas-fir in marine exposures Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Helsing, Guy G., Graham, R. D. (Robert D.) Close

• 2. [Article] Wood-metal corrosion : an annotated survey

  Citation × Citation Citation Abstract Copy Title: Wood-metal corrosion : an annotated survey Author: Graham, R. D. (Robert D.), Wilson, M. M., Oteng-Amoako, A., Oregon State University. Forest Research Laboratory Title: Wood-metal corrosion : an annotated survey Author: Graham, R. D. (Robert D.), Wilson, M. M., Oteng-Amoako, A., Oregon State University. Forest Research Laboratory Close

• 3. [Article] Controlling sapstain : trials of product group II on selected western softwoods

  Citation × Citation Citation Abstract Copy Title: Controlling sapstain : trials of product group II on selected western softwoods Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Mitchoff, Maureen Elaine, Miller, Donald J. (Donald James) Title: Controlling sapstain : trials of product group II on selected western softwoods Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Mitchoff, Maureen Elaine, Miller, Donald J. (Donald James) Close

• 4. [Article] Natural durability of wood : a worldwide checklist of species

  Naturally durable woods have a variety of commercial uses. Natural resistance to decay has been evaluated in field and laboratory tests of wood from many species, but there are few places where commercial ...

  Citation × Citation Citation Abstract Copy Title: Natural durability of wood : a worldwide checklist of species Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Scheffer, T.C. Naturally durable woods have a variety of commercial uses. Natural resistance to decay has been evaluated in field and laboratory tests of wood from many species, but there are few places where commercial wood users can find comparative assessments of natural durability. In this report, previous studies have been used to assign a numerical resistance rating to 1500 wood species. Species are listed alphabetically by scientific name, along with trade name, decay resistance rating, growing region, and source of resistance information. Species are also listed alphabetically by trade name if available, in the appendix. Title: Natural durability of wood : a worldwide checklist of species Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Scheffer, T.C. Naturally durable woods have a variety of commercial uses. Natural resistance to decay has been evaluated in field and laboratory tests of wood from many species, but there are few places where commercial wood users can find comparative assessments of natural durability. In this report, previous studies have been used to assign a numerical resistance rating to 1500 wood species. Species are listed alphabetically by scientific name, along with trade name, decay resistance rating, growing region, and source of resistance information. Species are also listed alphabetically by trade name if available, in the appendix. Close

• 5. [Article] Heat conditioning of veneer blocks

  Short-term heating of softwood veneer blocks temporarily softens the wood so that it can be peeled more readily. Heating reduces the depth of lathe checks and the likelihood of splitting and thereby increases ...

  Citation × Citation Citation Abstract Copy Title: Heat conditioning of veneer blocks Author: Parker, R., Resch, H. (Helmuth), Oregon State University. Forest Research Laboratory Short-term heating of softwood veneer blocks temporarily softens the wood so that it can be peeled more readily. Heating reduces the depth of lathe checks and the likelihood of splitting and thereby increases the quality and quantity of veneer recovered. The softwood-plywood industry conventionally conditions blocks three ways: steaming blocks in drive-in chambers, deluging blocks in such chambers with hot water, or submerging blocks in feed-through vats of hot water. About 450 to 1,000 lb of steam are required to heat blocks with a veneer volume of 1,000 ft², 3/8-in. basis. The best wood temperature for peeling falls between 120°F and 140°F, but the heating periods often are too short for the wood to reach the target temperature because blocks are not properly segregated into diameter classes. Furthermore, heated blocks cool rapidly during transfer. An infrared sensor system reported here gives industry a tool to monitor block temperature. The profitability of conditioning will depend on the cost of the installation and cash from increased veneer yields. Title: Heat conditioning of veneer blocks Author: Parker, R., Resch, H. (Helmuth), Oregon State University. Forest Research Laboratory Short-term heating of softwood veneer blocks temporarily softens the wood so that it can be peeled more readily. Heating reduces the depth of lathe checks and the likelihood of splitting and thereby increases the quality and quantity of veneer recovered. The softwood-plywood industry conventionally conditions blocks three ways: steaming blocks in drive-in chambers, deluging blocks in such chambers with hot water, or submerging blocks in feed-through vats of hot water. About 450 to 1,000 lb of steam are required to heat blocks with a veneer volume of 1,000 ft², 3/8-in. basis. The best wood temperature for peeling falls between 120°F and 140°F, but the heating periods often are too short for the wood to reach the target temperature because blocks are not properly segregated into diameter classes. Furthermore, heated blocks cool rapidly during transfer. An infrared sensor system reported here gives industry a tool to monitor block temperature. The profitability of conditioning will depend on the cost of the installation and cash from increased veneer yields. Close

• 6. [Article] Controlling sapstain : trials of product group I on selected western softwoods

  Environmental restrictions have induced many sawmills to seek alternatives to pentachlorophenol (penta) or similar chlorinated phenols to control fungal sapstains on green lumber. Five alternative preventives ...

  Citation × Citation Citation Abstract Copy Title: Controlling sapstain : trials of product group I on selected western softwoods Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Environmental restrictions have induced many sawmills to seek alternatives to pentachlorophenol (penta) or similar chlorinated phenols to control fungal sapstains on green lumber. Five alternative preventives were evaluated against a traditional penta product (Permatox 101) on Douglas-fir, hem-fir, and pine lumber in an accelerated 6-week test on small specimens in the laboratory and in field trials on bundled studs (2 inch x 4 inch x 8 ft) exposed outdoors for 2 and 6 months. Strong solutions of most alternative preventives provided good protection of Douglas-fir and hem-fir studs for at least 2 months during warming spring weather; some also protected pine studs. Permatox 101 provided superior protection during prolonged outdoor storage, but may permit surface growth of brown mold. Title: Controlling sapstain : trials of product group I on selected western softwoods Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Environmental restrictions have induced many sawmills to seek alternatives to pentachlorophenol (penta) or similar chlorinated phenols to control fungal sapstains on green lumber. Five alternative preventives were evaluated against a traditional penta product (Permatox 101) on Douglas-fir, hem-fir, and pine lumber in an accelerated 6-week test on small specimens in the laboratory and in field trials on bundled studs (2 inch x 4 inch x 8 ft) exposed outdoors for 2 and 6 months. Strong solutions of most alternative preventives provided good protection of Douglas-fir and hem-fir studs for at least 2 months during warming spring weather; some also protected pine studs. Permatox 101 provided superior protection during prolonged outdoor storage, but may permit surface growth of brown mold. Close

• 7. [Article] Controlling sapstain : trial of strong stain-preventive solutions on selected western softwoods in storage prolonged for 12 months

  Environmental restrictions have induced many sawmills to seek alternatives to pentachiorophenol (penta) and similar chlorinated phenols for controlling mold and fungal stains on green lumber during storage ...

  Citation × Citation Citation Abstract Copy Title: Controlling sapstain : trial of strong stain-preventive solutions on selected western softwoods in storage prolonged for 12 months Author: Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Environmental restrictions have induced many sawmills to seek alternatives to pentachiorophenol (penta) and similar chlorinated phenols for controlling mold and fungal stains on green lumber during storage and shipment. For that purpose, ten alternative stain preventives were evaluated against a traditional penta product (Permatox 101) on studs of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco], hem-fir [Tsuga heterophylla (Raf.) Sarg.; Abies sp.], and sugar pine [Pinus lambertiana (Dougl.)] in field trials over a 12-month period. Strong solutions of most preventives provided good to excellent protection for 2 months. Efficacy decreased substantially after the studs were stored 6 months through warm weather. Hem-fir, and to a lesser degree, Douglas-fir, were adequately protected for 12 months only by Permatox 101. None of the treatments protected sugar pine for 1 year. Title: Controlling sapstain : trial of strong stain-preventive solutions on selected western softwoods in storage prolonged for 12 months Author: Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Environmental restrictions have induced many sawmills to seek alternatives to pentachiorophenol (penta) and similar chlorinated phenols for controlling mold and fungal stains on green lumber during storage and shipment. For that purpose, ten alternative stain preventives were evaluated against a traditional penta product (Permatox 101) on studs of Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco], hem-fir [Tsuga heterophylla (Raf.) Sarg.; Abies sp.], and sugar pine [Pinus lambertiana (Dougl.)] in field trials over a 12-month period. Strong solutions of most preventives provided good to excellent protection for 2 months. Efficacy decreased substantially after the studs were stored 6 months through warm weather. Hem-fir, and to a lesser degree, Douglas-fir, were adequately protected for 12 months only by Permatox 101. None of the treatments protected sugar pine for 1 year. Close

• 8. [Article] Lateral bearing strength of fasteners in lumber-plywood joints treated with fire retardants

  Joints were fabricated from different combinations of untreated and fireretardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments ...

  Citation × Citation Citation Abstract Copy Title: Lateral bearing strength of fasteners in lumber-plywood joints treated with fire retardants Author: Oregon State University. Forest Research Laboratory, Johnson, James W. Joints were fabricated from different combinations of untreated and fireretardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments were tested. Joint specimens were exposed 2 and 7 years in cold, standard, and warm-humid conditions, then tested in lateral bearing. Best overall performance was from joints made with 6d hot-dipped galvanized nails; 6d monel nails were next best. Although results from several types of fasteners used in treated wood and exposed in cold and standard conditions were as good as results obtained from untreated controls, most specimens exposed in warm, humid conditions were reduced in strength; some were reduced to zero strength. Title: Lateral bearing strength of fasteners in lumber-plywood joints treated with fire retardants Author: Oregon State University. Forest Research Laboratory, Johnson, James W. Joints were fabricated from different combinations of untreated and fireretardant- treated (FRT) Douglas-fir dimension lumber and 3/8-inch plywood. Eight types of fasteners and three fire-retardant treatments were tested. Joint specimens were exposed 2 and 7 years in cold, standard, and warm-humid conditions, then tested in lateral bearing. Best overall performance was from joints made with 6d hot-dipped galvanized nails; 6d monel nails were next best. Although results from several types of fasteners used in treated wood and exposed in cold and standard conditions were as good as results obtained from untreated controls, most specimens exposed in warm, humid conditions were reduced in strength; some were reduced to zero strength. Close

• 9. [Article] Controlling hardwood sapstain : trials of stain-preventive products on red alder lumber

  Production of hardwood lumber (mostly red alder) has been a small but growing part of the forest products industry in the Pacific Northwest. In laboratory tests, Rodewod® 200 EC plus borax protected alder ...

  Citation × Citation Citation Abstract Copy Title: Controlling hardwood sapstain : trials of stain-preventive products on red alder lumber Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Production of hardwood lumber (mostly red alder) has been a small but growing part of the forest products industry in the Pacific Northwest. In laboratory tests, Rodewod® 200 EC plus borax protected alder at nearly all levels tested. Eight other chemicals provided some protection at the highest level tested. Fungal-stain preventive treatments were evaluated on red alder lumber in both an accelerated 6-week test on small specimens In the laboratory and on bundled boards (1 inch x 4 inches x 8 feet) exposed outdoors for 2 or 6 months. Strong solutions of RODEWOD® 300. PQ-8 plus borax, and Permatox 101 protected freshly sawed red alder lumber that was solid-piled and stored for 2 months during which summer temperatures peaked. None of the treatments provided good protection through 6 months of storage that included summer weather. Title: Controlling hardwood sapstain : trials of stain-preventive products on red alder lumber Author: Morrell, Jeffrey J., Oregon State University. Forest Research Laboratory, Miller, Donald J. (Donald James) Production of hardwood lumber (mostly red alder) has been a small but growing part of the forest products industry in the Pacific Northwest. In laboratory tests, Rodewod® 200 EC plus borax protected alder at nearly all levels tested. Eight other chemicals provided some protection at the highest level tested. Fungal-stain preventive treatments were evaluated on red alder lumber in both an accelerated 6-week test on small specimens In the laboratory and on bundled boards (1 inch x 4 inches x 8 feet) exposed outdoors for 2 or 6 months. Strong solutions of RODEWOD® 300. PQ-8 plus borax, and Permatox 101 protected freshly sawed red alder lumber that was solid-piled and stored for 2 months during which summer temperatures peaked. None of the treatments provided good protection through 6 months of storage that included summer weather. Close