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Determination of relationships between density, amount of glue and mechanical properties of OSB
oriented strand board (OSB) density bending strength modulus of elasticity tensile strength perpendicular to the board surface amount of glue PMDI glues
2009/7/21
This paper deals with problems of the effect of changes in density and amount of glue on mechanical properties of OSB (oriented strand boards). Tests of mechanical properties were carried out on OSB...
Influence of plywood grain direction on sandwich panel bending properties
sandwich panel veneer plywood stress FEM structural construction
2009/7/21
This paper investigates the influence of plywood grain direction on bending properties of a sandwich panel, as well as on stress distribution in each layer. Experimental sandwich panels (tnom= 29 mm...
Growth and Wood Properties of Sugi（Cryptomeria japonica）Cultivars Planted in the Kyushu Region
sugi cultivar MuPS growth wood property
2009/3/6
This study examined growth and wood properties of sugi (Cryptomeria japonica D. Don) cutting cultivars planted in the Kyushu region. Sixteen cultivars (48 trees) which were identified based on MuPS (...
Adsorption Properties and Structural Features of Alkali Treated Wood
alkali treatment contraction structural features microfibrils
2009/3/6
In order to investigate the influence of alkali treatment on structural features and on hygroscopic properties, weight and dimensions were measured after wood samples (Picea jezoensis Carr.) were trea...
Changes of Mechanical Properties of Wood under an Unstable State by Heating or Cooling
stress relaxation unstable state temperature history amount of fluidity
2009/3/6
In this paper stress relaxation of water-swollen wood was discussed with two conditions of temperature change, i.e. 1) specimens at 20°C were heated rapidly to 30-80°C, and 2) specimens at 30-80°C wer...
Properties of Sugi as High Bench Culture Media for Strawberries
Cryptomeria japonica bark allelopathy strawberry high bench culture
2009/3/6
The properties of bark and wood of sugi (Cryptomeria japonica D. Don) as high bench culture media for strawberries were investigated. Three cultivars, “Toyonoka”, “Kentarou” and “HS-138” were cultured...
Manufacture and Properties of Gypsum-Bonded Particleboard III
gypsum-bonded particleboard kenaf fiber incombustibility
2009/3/6
Gypsum-bonded particleboards overlaid with kenaf bast fiber mats on top and bottom surfaces were manufactured. The effects of the kenaf fiber overlay on the mechanical and dimensional properties of th...
Mechanical Properties of Built-up Members Composed of Sugi Planks Fastened Together with Wood Pegs I
Sugi plank built-up beam wood peg edgewise bending test
2009/3/6
Built-up beams were made of two Sugi (Cryptomeria japonica D. Don) planks fastened together with wood pegs. In this study we investigated the edgewise bending properties of Sugi planks and 2ply built-...
Flow Properties of Wood Powder-Plastic Mixture II
wood powder-plastic mixture capillary flow test flow property apparent viscosity
2009/3/6
Capillary flow tests were conducted on wood powder-plastic mixtures, and the analysis and evaluation of flow properties were performed based on a generally steady state. Apparent viscosity and slip v...
Flow Properties of Wood Powder-Plastic Mixture I
wood powder-plastic mixture flow property capillary flow test extrusion molded material
2009/3/6
In order to study the flow properties of wood powder-plastic mixture with a high proportion of wood powder, flow tests using capillaries of various sizes were performed. After starting to load, the m...
Static and impact bending strength properties of aged keyaki and akamatsu woods
aged wood strength properties bending test impact bending test
2009/3/6
Mechanical properties, namely modulus of rupture (MOR), modulus of elasticity in bending (MOE) and impact bending strength, were measured with small clear test specimens of new and aged wood. The test...
The torsional fatigue properties of two woods (Japanese beech and white cedar) under controlled torque were investigated experimentally. Pulsating torsional loading was applied about the longitudinal ...
Recent Advances in Studies of Wooden Cultural Properties
Recent Advances Wooden Cultural Properties
2009/3/6
Recent Advances in Studies of Wooden Cultural Properties.
Comparison of Wood Properties of Hinoki（Chamaecyparis obtusa）Small Diameter Logs Collected from Different Tree Ages and Heights
hinoki basic density pilodyn penetration compression strength
2009/3/6
To effectively utilize small diameter logs as a civil engineering material, the wood properties of such logs of hinoki (Chamaecyparis obtusa Endl.) were investigated by determining density of air-dri...
Manufacture and Properties of Gypsum-Bonded Particleboard IV.
gypsum-bonded particleboard waste gypsum boards amount of mixing water
2009/3/6
In order to study the recycling of waste gypsum boards, gypsum-bonded particleboards were manufactured by using the gypsum hemihydrate calcined from waste gypsum boards, and the mechanical properties ...