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Information Journal Paper

Title

EFFECT OF BEECH RED HEARTWOOD (FAGUS ORIENTALIS L.) ON THE PHYSICAL PROPERTIES (MOISTURE CONTENT AND SPECIFIC GRAVITY) AND THE DRYING BEHAVIOR OF THE SPECIES

Pages

  85-98

Abstract

 In this research, the influence of RED HEARTWOOD formation in Iranian BEECH (Fagus orientalis L.) on its DRYING BEHAVIOR was studied. Radial variation (from pith to bark) in specific gravity, green moisture content, drying rate, transverse shrinkage and CASEHARDENING in a BEECH log containing RED HEARTWOOD was investigated. All samples were dried in an experimental kiln under a constant temperature of 60oC and relative humidity of 40% to the final moisture content of about 8%. The results showed that the wood containing RED HEARTWOOD had greater specific gravity and lower green moisture content than normal wood. In addition, it was revealed that the RED HEARTWOOD formation in BEECH decreased the drying rate and increased shrinkage and CASEHARDENING. The microscopic studies indicated that the TYLOSE presents in the vessel cavities of RED HEARTWOOD BEECH. Thus, the different DRYING BEHAVIOR of BEECH RED HEARTWOOD can be attributed to the TYLOSE in the vessel cavities.

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