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Wood density is determined by multiple growth and physiological factors compounded into "one fairly easily measured wood characteristic" (Elliott 1970). [ 26 ] Age, diameter, height, radial (trunk) growth, geographical location, site and growing conditions, silvicultural treatment, and seed source all to some degree influence wood density.
Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...
Medium-density fibreboard (MDF) is an engineered wood product made by breaking down hardwood or softwood residuals into wood fibre, often in a defibrator, combining it with wax and a resin binder, and forming it into panels by applying high temperature and pressure. [1]
Density (volumetric mass density or specific mass) is a substance's mass per unit of volume. ... Wood: 700: Seasoned, typical [14] [15] Oak: 710 [13] Potassium: 860 ...
NCSU Inside Wood project; Reproduction of The American Woods: exhibited by actual specimens and with copious explanatory text by Romeyn B. Hough; US Forest Products Laboratory, "Characteristics and Availability of Commercially Important Wood" from the Wood Handbook Archived 2021-01-18 at the Wayback Machine PDF 916K; International Wood ...
Engineered wood, also called mass timber, ... with an average cooling power of 53 W⋅m −2 over a 24-hour ... while cement board is a low-density cement panel, ...
Steaming makes the wood even easier to machine. It has an excellent finish and is resistant to compression and splitting and it is stiff when flexed. Milling is sometimes difficult due to cracking. The density of the wood is 720 kilograms (1,590 pounds) per cubic metre. [44] It is particularly well suited for minor carpentry, particularly ...
The burning of wood results in about 6–10% ashes on average. [2] The residue ash of 0.43 and 1.82 percent of the original mass of burned wood (assuming dry basis, meaning that H 2 O is driven off) is produced for certain woods if it is pyrolized until all volatiles disappear and it is burned at 350 °C (662 °F) for 8 hours.