COMPARISON OF TWO CLASSIFICATION SYSTEMS (VISUAL AND VIBRATION) FOR STRUCTURAL TIMBER OF FIRWOOD (ABIES CEPHALONICA LOUD.)
Published: 28 Jun 2014
Abstract: Sawn timber has to be classified by means of its mechanical properties before using it for structural purposes. The two most common methods used are visual classification and classification using vibrations. In present paper these two methods were used for classifying fir wood from Peloponnese, Greece and possible similarities are discussed. For visual classification the proInsta 142:2008 (Scandinavian) Standard was used and for vibration method the MTG system (according to EN 14081-1:2005 standard) was used respectively. Although there is only indirect correlation between these two methods, some first results show that there is a not so strong relation between them, depending very much from the wood moisture content of timber.
Keywords: visual classification, vibration, mtg system
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