what are the characteristics of good wood explain?
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The main physical properties of wood include: color, luster, texture, macro-structure, odor, moisture, shrinkage, internal stresses, swelling, cracking, warping, density, sound - electro - thermal conductivity. Сolor, shine, texture and macrostructure determine the appearance of wood.
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Oak is also a strong, hard, and durable wood that will last long without a fire rating. Oak is thicker and denser than other woods, which makes it solid and ideal for use in buildings. These doors, when fire rated, offer some of the best in terms of protection.
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["PINE. Pine is also a softwood. Softwood is the source of about 80% of the world's production of timber. ... ", "SOFTWOOD. Softwood is wood also known as conifers. Softwood is the source of about 80% of the world's production of timber. ... ", 'TORREFIED WOOD. Torrefied wood is regarded as the new “coal”.']
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To understand clearly, we should know what is wood. Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. ... However according to definition of wood, papaya (Carica papaya) is also a tree, which does not have wood.
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Typically wood that is two or more inches thick is graded only for strength, denoted by #1, #2 and so on. And because stronger lumber has fewer and smaller knots, it's typically more attractive.
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['Plainness.', 'Straightforward simplicity.', 'Being conducive to mass production.', 'Retaining the integrity of craft materials (as in materials should be used in their honest and natural form and not altered)', 'Streamlined aesthetics.', 'Modernity.']
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['High Strength Capacity.', 'Low Shrinkage.', 'Low Creep.', 'High Durability.']
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['Strength.', 'Toughness.', 'Hardness.', 'Hardenability.', 'Brittleness.', 'Malleability.', 'Ductility.', 'Creep and Slip.']
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['Lustrous (shiny)', 'Good conductors of heat and electricity.', 'High melting point.', 'High density (heavy for their size)', 'Malleable (can be hammered)', 'Ductile (can be drawn into wires)', 'Usually solid at room temperature (an exception is mercury)', "Opaque as a thin sheet (can't see through metals)"]
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A log home's energy efficiency is based on the wood's insulation properties and its thermal mass. Insulation refers to the wood's ability to resist heat transfer. ... Testing has shown that log homes often are more energy efficient than conventional homes boasting higher R-values.
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Birch is abundant in North America, especially in the northern United States and Canada, and while it isn't a superior furniture-grade hardwood, it's a good one. It's durable and attractive, it takes stain well and it's affordable. Birch plywood is a preferred material for making cabinets, benches and tables.
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The Three Main Types of Wood. Before we get into all of the different wood varieties and their common uses, it's important to understand the three basic types of wood you might encounter. These three types are: softwoods, hardwoods, and engineered wood.
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The reason that Oak is utilized is its unique physical and chemical nature. Oak has strength – physically, its wide radial rays give strength when shaped for a cask. Oak is also a “pure wood” as opposed to pine or rubber trees which contain resin canals that can pass strong flavors to maturing whisky.
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['Energy Production and Storage. ... ', 'Insulation and Protection. ... ', 'Digestion and Absorption. ... ', 'Cell Wall Structure. ... ', 'Hormone Production.']
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Beech is a hard, strong and heavy wood. It has a fine, tight grain and even texture. Beech wood is very light in colour and has a high shock resistance.
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Core Materials Wood is used as it gives a lively feel with good vibration damping, it keeps its shape well, and has less resonance than foam or plastic. Many other materials can also be used for or in the core though, including: Carbon - Light, lively, strong and very good under compression, but very expensive.
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['Tenacity: 5 – 7 gm/den.', 'Elongation at break: 15 – 30%', 'Elastic modulus: 90.', 'Elasticity: Good.', 'Moisture Regain (MR%): 0.40%', 'Specific Gravity: 1.38.', 'Melting point: 2500C.', 'Volumetric Swelling: None.']