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For many years, biocides (mainly copper chromium arsenic (CCA) water-based solutions, containing toxic heavy metals – copper (Cu), chromium (Cr) and arsenic (As)) have been used for protection of wood. …
Year: 2007
Authors:Plywood has multiple applications in various fields and plays a significant role in the Latvian woodworking industry. The plywood consumption is growing in the European Community and Latvia. The volume …
Year: 2007
Tags: bonding quality, formaldehyde release, modulus of elasticity, strength, wood-based panels
Authors:In many European countries: Central Europe, Ukraine and Baltic states as well as in the USA, Canada, etc., wild cherry Prunus avium L. is regarded a fast-growing deciduous species, promising …
Year: 2007
Tags: cherry wood chemical characteristics, cherry wood physical properties, Prunus avium, wild cherry wood
Authors:Tree age and growth rate are the major factors explaining heartwood formation in Scots pine (Pinus sylvestris L.). Heartwood proportion is highest at a relative height of 20–30 percent in …
Year: 2007
Tags: heartwood formation, Scots pine
Authors:Prior to the era of impregnated timber, the heartwood of two boreal conifers, Scots pine (Pinus sylvestris L.) and Siberian larch (Larix sibirica Ledeb.), was used in construc-tions prone to …
Year: 2007
Tags: decay resistance, heartwood, natural durability, service life
Authors:The research of sawn wood is developing far more rapidly than following it technique and technology. The newest achievements in technique, technologies and industrial computerization are forcing once again to …
Year: 2007
Tags: sawing pattern, sawmill model, sawn timber, volume yield
Authors:Moisture content in wood is a volatile feature, continuously changing under influence of the oscillating ambient climate. Unquestionably an essential quality trait for the timber, the MC and other drying …
Year: 2007
Tags: EMC, HT drying, hysteresis, MC dynamics, sawn timber
Authors:In the last decade there has been a remarkable growth world-wide in the production of biomaterial-based composites. In this context, so-called wood plastic composites (WPCs) are today mainly used in …
Year: 2007
Tags: acetylation, decay, heat treatment, micromorphology, moisture sorption, soil tests, thermoplastic composites, UV laser
Authors:Wood is a hydrophilic material and the moisture content of it depends from the relative humidity of environment. It’s known that the moisture content of wood have an influence to …
Year: 2007
Tags: moisture content, reaction to fire, wood
Authors:Southern pine solid wood and wood fiber were reacted with acetic anhydride to various acetyl weight gains. The equilibrium moisture content (EMC) was determined on these specimens at 30%, 65% …
Year: 2007
Tags: acetylation, brown-rot fungus, decay, moisture
Authors:The fracture properties of spruce (Picea abies) and birch (Betula spp.) wood under pure Mode I loading in the RT-direction were studied under “green†and air dried conditions (moisture content …
Year: 2007
Tags: birch, digital image correlation, fracture, process zone, RT-direction, spruce
Authors:There is large variation in wood characteristics, which contradicts the expectations of the consumers for the uniform quality. For example in Scots pine (Pinus sylvestris L.), heartwood timber is more …
Year: 2007
Tags: decay resistance, grading, heartwood extractives, natural variation, timber
Authors:The utilization of broadleaf species in wood product industry in Finland is minor. Birch (Betula pendula, Betula pubescens) is the most important species and it is mainly used in plywood …
Year: 2007
Tags: birch, drying quality, high frequency vacuum drying, sawn timber, warm air drying
Authors:The aim of this study was to use Energy-Dispersive X-ray Spectroscopy (EDS) to localize chitosan in the cell wall of chitosan impregnated Scots pine. It is of both general and …
Year: 2007
Tags: chitosan, chloroacetic anhydride, EDS, Scots pine, SEM
Authors:The effectiveness against soft rotting micro fungi and other soil inhabiting micro-organisms was tested according to ENV 807 using different treated Scots pine sapwood and beech wood samples. The treatments …
Year: 2007
Tags: chitosan, Scots pine sapwood, soft rot fungi
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