Seasoning of Timber Grade 8 Seasoning logs What is seasoning of timber When a tree is cut down the wood contains a large amount of moisture. See Answer: This Month around the world. When the drying is done in a kiln, the product is known as kiln-dried timber or lumber, whereas air drying is the more traditional method. The water is to be removed before it used for engineering purposes. 1.8. Seasoning of Timber From day to day, most people have some contact with "seasoned" timber. It is very important to get this done before using it for construction purpose. In this method seasoning is carried out by natural air hence it is sometimes referred to as Air seasoning. Air seasoning is carried out in a shed with a platform. to remove water. Timber becomes lightweight after seasoning. In other words, the timber is to be dried. During period, the flowing water drives away the sap pf wood it. Seasoning of timber is done at lower temperature and higher humidity. Different Ways of Seasoning Wood. The object of seasoning timber is to get rid of the sappy moisture which, as has previously been pointed out in these notes, is a great source of decay. Seasoning of timber is done a) To make it water proof b) To paint its surface c) To increase its temperature d) To remove water Seasoning ‘Seasoning’ is the process of drying moisture from timber. It reduces the possibility of fungi and insect attacks. It increases the resistance to shrinkage, cracking, warping and even decay. The list below will tell you that your decision to choose kiln seasoning is the best decision you could make for everlasting construction. And also prevent decaying of timber. Felling of trees; Seasoning in timber; Conversion to timber; 1.Felling of trees. 1) Natural seasoning:-It is the oldest method of seasoning.Non technical person can also be done this method.some natural seasoning are; a) Air seasoning:-This is as yet the most common process of seasoning used through the world.In this process, wood sleepers, planks and scantlings etc cut from the wood logs are stacked in open air. In other words timber should be dried. In air seasoning, the timber is stacked in an open air or open-sided sheds to promote drying without any artificial assistance. Processing of timber is carried out in 3 distinct operation. It is undertaken for two important reasons: To improve structural performance—a prerequisite to the allocation of seasoned timber strength (SD) and joint groups (JD) is that the average moisture content in the piece be no more than 15% Advantages: 1. For retention of shape and size of manufactured article and make quality product, timber should be seasoned and the moisture contents to be brought down to level in equilibrium with the surrounding atmosphere (normally 6% to 8%). The various methods of seasoning used may be classified into: (i) Natural seasoning (ii) Artificial seasoning. This water is in the form of sap and moisture. It would not be wise to use the wood in this wet state. Seasoning is the process of drying timber to remove the bound moisture contained in walls of wood cells, producing a new product called "seasoned timber. " This can be done artificially in kilns or naturally in the open air , and ranges from a few hours to years to achieve that moisture loss. For large scale production of seasoned timber kiln seasoning is a must. Seasoning is the controlled process of reducing the moisture content of the timber such that it is suitable for the environment and intended use. It renders the timber less liable to be attacked by insects and fungi and shrinkage. A timber stack in a shade for air seasoning. It is better against… Thus, the handling of timber becomes easier. Seasoning of Timber. Lowers the Moisture in Timber; Choosing timber with low moisture level is important for construction. So, platform is built on ground at 300mm height from ground. Natural seasoning may be done by air seasoning or water seasoning. Local Timber Supplying We supply local timber such as Mahogani, Teak, Jak (Kos), Lunumidella, Ginisapu, etc. 33. The logs are arranged in such a way that air is circulated freely between logs. timber the term "moisture content" must be under stood. The benefits are to prevent decay because the higher the moisture level is the easier the timber will decay. 2. Seasoning can be achieved in a number of ways, but all methods aim to remove water at a uniform rate to prevent damage to the wood during drying (seasoning degrade). This is usually expressed as a percentage. Seasoning of Timber • Fresh timber contains about 50% or more of its own dry weight as water. When tinber is seasoned the term relates to the drying and moisture reduction in the cut wood . Seasoning is done in Scientific way to ensure perfect seasoning … What is the most economical method of converting a timber log? 4. Timber is then taken out and dried in open air for about a month. to paint its surface. • The process of drying of timber is known as seasoning of Timber. In the process of air seasoning timber logs are arranged in layers in a shed. Seasoning process actually turns greenwood into dry wood. Seasoning is the removal of excess moisture from timber after the timber has been felled and converted into usable planks. Seasoning is the process of removing the moisture content from wood to minimize structural problems when used … The arrangement is done by maintaining some gap with the ground. TYPES OF TIMBER SEASONING Two main types of timber seasoning are as under-Natural seasoning:- it is a very time-consuming process usually takes 2 to 4 years to make timber fit for the; work. Question is ⇒ Seasoning of timber is done for., Options are ⇒ (A) increasing moisture content, (B) decreasing moisture content, (C) increasing strength of timber, (D) none to these., (E) , Leave your comments or Download question paper. For natural seasoning, we may stick the lumber properly and lay in a shade for 5/6 month, sometimes more, then the timber … A large quantity of timber used in India is not properly dried or seasoned & treated resulting into development of defects like warping, cracking, splitting or decay and insect attack in the products. Kiln seasoning is done in a chamber equipped with rrangements for heating and humidifying the air to required conditions of relative humidity and temperature and for its circulation across the timber stacked in the chamber for seasoning. Water seasoning takes less time than air seasoning, but the strength of wood is reduced. On about 300 mm high platform timber balks are stacked as shown in Fig. in our stores. The wood can be used immediately as and when required. The water is to be removed before the timber can be used for any engineering purpose. For manufacturing, the timber is fabricated first and then treated with AsCu pressure treatment The main objectives of timber seasoning can be listed as follows: 1. The process starts from the point of receipt when sorting is done of the material into structural and non structural parts. This is simply the weight of water contained in a piece of timber compared with the weight of actual woody substance in the same piece. Seasoning of Timber or Drying of Wood Wood drying (also seasoning lumber or wood seasoning) reduces the moisture content of wood before its use. In water seasoning, the timber balks are immersed in water for 15-20 days. This can be done by either drying up or driving out the superfluous moisture, a proceeding which of course reduces the weight of the limber. Air drying Air-drying is the drying of timber by exposing it to the air. Seasoning of timber is done for a) Increasing moisture content b) Decreasing moisture content c) Increasing strength of timber d) None to these Seasoning of timber is done to dry out the timber to bring it to a usable and workable condition improving its strength, elasticity and durability. Temperature and humidity differentials are maintained throughout the length of the kiln so that the lumber charge is … Seasoning is the name given to the methods of drying timber There are two methods by which timber can be dried: (i) natural drying or air drying, and (ii) artificial drying. WOOD SEASONING. Seasoning can be done thoroughly well and in the shortest time under controlled process. In Western countries Timber is not allowed to come out from saw mill unless it … The length of the process depends on the wood types used along with relative humidity in the area where the wood is seasoned.When the drying is done in a kiln, the product is known as kiln-dried timber, whereas air … When a tree is newly felled, it contains about 50% or more of its own weight as water. 2. Seasoning of timber. Proper seasoning doesn’t mean that, we will lay the timber in the sunlight with few sticks for 3 months and the moisture will come out and it’s done. From childhood days Seasoning of timber is done. to increase its temperature. 3. If seasoning is not done the right way, shrinkage of wood will be irregular, and it will set up internal stresses between the fibers. to make it water proof. After this it is kept for natural seasoning in stacks in the storage area. Seasoning of timber does not only mean extracting of moisture but also plays an important role in providing strength and durability to the timber. Progressive Seasoning: In the progressive kiln, timber enters at one end and moves progressively through the kiln much as a car moves through a tunnel. So it is required seasoning of timber. Felling of trees should be done at suitable age as if tree are cut when they are overmatured, decayed wood is obtained while … (i) Natural Seasoning: It may be air seasoning or water seasoning. Seasoning of timber is a process to reduce or minimize the moisture content within limit value ( not more than 12 percentage ) for prevention of further fermentation. 3. 12 March: Sadiq Sanjrani elected as Chairman Senate 2021-2023. The advantages are as follows: Seasoned wood will be lighter, stronger and reliable. Seasoning do because freshly felled tree is too wet. 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