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Hygroscopicity is a general term used to describe a material's ability to absorb moisture from the environment. [31] There is no standard quantitative definition of hygroscopicity, so generally the qualification of hygroscopic and non-hygroscopic is determined on a case-by-case basis.
Equilibrium moisture content of wood versus humidity and temperature, according to the Hailwood-Horrobin equation. The equilibrium moisture content (EMC) of a hygroscopic material surrounded at least partially by air is the moisture content at which the material is neither gaining nor losing moisture.
After drying the wood, it is planed into long fibres in a wood wool machine. The fibres are then mixed with the binding agent (caustic magnesite or cement) in a water solution, in a mixer. Wood wool boards which are bound with magnesite are easily distinguishable by their beige colour. Boards which are bound with grey cement have a greyish colour.
Excelsior, or wood wool. Wood wool, known primarily as excelsior in North America, is a product made of wood slivers cut from logs. It is mainly used in packaging, for cooling pads in home evaporative cooling systems known as swamp coolers, for erosion control mats, and as a raw material for the production of other products such as bonded wood wool boards.
A fence is a part of many woodworking tools; it is typically used to guide or secure a workpiece while it is being sawn, planed, routed or marked. Fences play an important role for both accuracy and safety. Fences are usually straight and vertical, and made from metal, wood or plastic. [1]: 194
Apart from structural wood preservation measures, there are a number of different chemical preservatives and processes (also known as timber treatment, lumber treatment or pressure treatment) that can extend the life of wood, timber, and their associated products, including engineered wood. These generally increase the durability and resistance ...
Wood impregnation resins typically are designed to end up inside wood cell walls, where they generally increase strength, hardness, dimensional stability, and resistance to decay. [2] In recent years, interest in wood, or lumber, has increased because less energy is needed to convert trees into wood than what is required by other building ...
Fladry lines, made of cloth, metal and/or other materials, are sometimes used on fences to discourage wolves from entering a livestock enclosure. Deer and many goats can easily jump an ordinary agricultural fence, and so special fencing is needed for farming goats or deer, or to keep wild deer out of farmland and gardens. Deer fence is often ...
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