Changes in the chemical composition and selected physico-mechanical properties of pedunculate oak (Quercus robur L.) wood samples were assessed after thermal treatment. Heat treatment was performed at 160, 180, and 200 °C in an oxidizing atmosphere. The contents of the extractives, lignin, cellulose, holocellulose,..
To surf back and forth between a wood species in the Chart of Mechanical Properties and the same species in the Chart of Physical Properties, click on the name of the species. bullet, To enlarge a photo of a piece of wood, click on the photo
Their properties are however so similar that their wood is simply known as oak wood. Oak grows commonly throughout Europe and Asia Minor, with the . Its high tannic acid content can lead to coloration when in contact with iron due to chemical reactions. Dimensions Oak is available as round or sawn timber, or as a..
Jan 23, 2017 . Introduction. Considered to be the traditional carving wood, oak is characterised by its strength and sturdiness, with a very defined grain. Consisting of dozens of species of varied colours, white and red oak are typically more common in carving. An extremely popular choice of wood for carving, English Oak..
Sep 26, 2017 . The wood of the oak tree is indeed strong, and it has other qualities as well. It has an attractive texture that appeals to furniture makers and a chemical composition that appeals to the wine industry. . The oak is a slow-growing tree. The oak grows slowly and lives for a long time. This long, slow development..
The present study examines the three-dimensional hygric and mechanical behavior of oak wood. The moisture equilibrium state, characterized by the sorption isotherms, was obtained from measurements taken during adsorption and desorption cycles. Sorption behavior was analyzed with the Dent theory and compared..
red oak and pin oak within the red oak commercial group. Logs of these species are normally not separated by sawmills. This mixed lumber will increase the color variation in products manufactured from this material. Grain Variation Influences. Grain variation, like color variation, is influenced by many factors. They include..
Stains and other chemicals applied during processing often obscure the pinkish cast of red oak and the pale tan of white oak. But at least one of the tree's distinguishing properties remains at every stage of processing. The rays -- thin, dark lines -- run through the wood grain, are a standard characteristic in all varieties of oak..
This Revision Bite looks at the materials used in resistant materials, and their working properties
Color/Appearance: Heartwood is a light to medium brown, commonly with an olive cast. Nearly white to light brown sapwood is not always sharply demarcated from the heartwood. Quartersawn sections display prominent ray fleck patterns. Conversely, Red Oak tends to be slightly redder, but is by no means a reliable..
PHYSICAL PROPERTIES White oak is a hard and heavy wood with a medium-bending and crushing strength, low in stiffness, but very good in steam-bending. It has great wear-resistance. AVAILABILITY Readily available, but not as abundant as red oak. MAIN USES Furniture, flooring, architectural millwork, moulding,..
Wood properties were measured to assess quality in treated and non-treated materials, including density, hardness, anti-swelling efficiency (ASE), modulus of elasticity (MOE), . We also observed a reduction in Brinell hardness previously detected in spruce, beech, and red oak () treated at 190 °C, and P. brutia treated at..
Sep 30, 2017 . When obtaining standard-size test samples is not possible, micro-size samples can be used to determine the mechanical properties of wood in structural areas such as wooden bridge, historic buildings etc. Micro-size test samples of structural wood material can be taken periodically and their mechanical..
Physical Properties of Red Oak. The wood is hard and heavy, with medium bending strength and stiffness and high crushing strength. It is very good for steam bending. Great wear-resistance
bending strength, content of mineral substances. Contemporary wood of the same density as the archaeological oak wood would show significantly higher mechanical properties. KEYWORDS: Archaeological oak wood, physical, mechanical and chemical properties of wood. INTRODUCTION. European oak wood (Quercus..
Discover the origins, properties, qualities and best way to clean oak wood in the URBANARA buying guide. . to tree and branch to branch. When a natural finish or oil is applied, the variations and contrasts of this gorgeous material shine, creating a beautiful natural feature in itself without the need for heavy ornamentation
magnitude of variability in properties. This chapter also includes a discussion of the effect of growth features, such as knots and slope of grain, on clear wood properties. The effects of manufacturing and service environ- ments on mechanical properties are discussed, and their effects on clear wood and material containing..
American Red Oak Wood Specie Physical and Working Properties
Jan 8, 2013 . This study examines the effect of particle size and wood flour content on the properties of polystyrene filled with white oak flour. Wood-plastic ratios 10:90, ..
Oak wood has a density of about 0.75 g/cm (0.43 oz/cu in) creating great strength and hardness. The wood is very resistant to insect and fungal attack because of its high tannin content. It also has very appealing grain markings, particularly when quartersawn. Oak planking was common on high status Viking longships in..
Deposition of minerals from the water ensures conservation and durability of wood structural elements. Aforementioned processes that form the bog-oak also change its chemical structure, and physical and mechanical properties. Time period for which the wood was under bog-oak forming conditions spans from several..
VARAKSINA,T. N. & ANTONOVA, G. F.: The effects of supersonic treatment on the structure and components of oak wood. 59. KRUTUL, D., DZBESKI, W., MAKOWSKI, T. & ZAWADZKI, J.: Influence of environment pollution on the chemical composition of bark and wood of Scoth pine. (Pinus sylvestris L.) 67. KÜNNIGER, T