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Sawdust
Sawdust or wood dust is a by-product of cutting, grinding, drilling, sanding, or otherwise pulverizing wood or any other material with a saw or other tool; it is composed of fine particles of wood. It is also the byproduct of certain animals, birds and insects which live in wood, such as the woodpecker and carpenter ant. It can present a hazard in manufacturing industries, especially in terms of its flammability. Sawdust is the main component of particleboard.
==Uses==
A major use of sawdust is for particleboard; coarse sawdust may be used for wood pulp. Sawdust has a variety of other practical uses, including serving as a mulch, as an alternative to clay cat litter, or as a fuel. Until the advent of refrigeration, it was often used in icehouses to keep ice frozen during the summer. It has been used in artistic displays, and as scatter in miniature railroad and other models. It is also sometimes used to soak up liquid spills, allowing the spill to be easily collected or swept aside. As such, it was formerly common on barroom floors.〔Felman, David (2005) "Why Did Bars Used to Put Sawdust on the Floor? Why Don't They Anymore?" ''Why Do Elephant's Jump?'' HarperCollins, New York, (page 118 ), ISBN 978-0-06-053914-6, quoting Christopher Halleron, bartender and beer columnist.〕 It is used to make Cutler's resin. Mixed with water and frozen, it forms pykrete, a slow-melting, much stronger form of ice.
Sawdust is used in the manufacture of charcoal briquettes. The claim for invention of the first commercial charcoal briquettes goes to Henry Ford who created them from the wood scraps and sawdust produced by his automobile factory.〔Green, Harvey (2006) ''Wood: Craft, Culture, History'' Penguin Books, New York, (page 403 ), ISBN 978-1-1012-0185-5〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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