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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

Creator:: Goodell, Barry Scott
Abstract:: Three groups of experiments were performed to determine an effective procedure for controlling decay in southern pine (Pinus spp.) laminated timbers. (i) A decaying laminated arch of southern pine was treated with chloropicrin. Movement of the chemical vapor through the arch and its effect on the decay and nondecay fungal...
Resource Type:: Masters Thesis

Creator:: Oteng-Amoako, Andrews
Abstract:: The response of three hardwoods from Ghana and a hardwood and three softwoods from the United States to liquid and gas-phase impregnation was investigated. Impregnation with liquids included a sink-float test in a water-glycerine solution and pressure treatment with a copper sulphate solution and creosote under identical treating conditions. Flow...
Resource Type:: Masters Thesis

Creator:: Safo-Sampah, Stephen
Abstract:: Wood degrading ability and tolerance to wood-preserving chemicals of several fungi isolated from Douglas-fir utility poles were investigated by the agar-stick and soil-block methods. Birch (Betula. sp. ) wood sticks and western hemlock (Tsuga heterophylla) wood blocks were used. The soil-block and agar-stick tests provided identical weight loss rankings of...
Resource Type:: Masters Thesis

Creator:: Smith, Susan M.
Abstract:: Three methods--radial compression strength, color indicators of decay and micro-toughness, an examination of tracheid fracture patterns, were evaluated for detection of early decay and for application to field use. Three-eighth-inch diameter plugs 3/4-inch long, cut from the sapwood and heartwood of a Douglas-fir pole free of decay, were decayed by...
Resource Type:: Masters Thesis
Full Text:: -Fir R. D. Gya am R. L. Krahmer Three methods--radial compression strength, color indicators of

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