1. M A T E R I A L presentationJATIN SARVESH hukkeri : MADHUMITHA srinivasan : srinivasan Rubberwood RV SCHOOL of ARCHITECTURE 09 SEMESTER
2. Rubberwood, also calledWhat is Rubberwood? Para wood in Thailand,Rubberwood is a is used in high-endhardwood from the furniture as it is valued formaple family of woods its dense grain, attractiveRubberwood is actually a colour, minimalby-product from the culling shrinkage, andof the rubber tree acceptance of different finishes. It is also prized as an "environmentally friendly" wood, as it makes use of trees that have been cut down at the end of their latex- producing cycle. The older practice was to burn the "useless" tree. After the economic life of theProperties of Rubberwood: rubber tree, which is generally 26-30 years, the latex yieldsDensity (kg/m³ at 16 C) ---------------------------- 560-640 become extremely low and the planters then fell theTangential Shrinkage Coefficient (%) ------------- 1.2 rubber trees and plant newRadical Shrinkage Coefficient (%) ----------------- 0.8 ones. So, unlike other woodsHardness(N) ----------------------------------------------- 4,350 that are cut down for the sole purpose of producingStatic Bending, N/mm at 12% MC ------------------ 66 furniture, rubberwood is usedModulus of elasticity/mm at 12%MC ------------ 9,700 only after it completes its latex producing cycle and dies..
3. Physical Properties • Rubber wood is a light hardwood. • The wood is whitish yellow or pale cream when freshly cut and seasons to light straw or light brown. • It is a diffuse porous wood with medium texture and straight grain. • Sapwood and heartwood are not distinct. •Dry rubber wood has better hardness than teak. • Occurrence of tension wood seen as white lustrous zones when freshly cut is a characteristic feature of rubber wood. •Rubber wood has good machining and working qualities. It can be finished to a very glossy•Rubber wood can be bent in steam or in ammonia to look on polishing andmake curved items. can be given ammonia• It takes up stains well and being light in colour it can fumigation cum barkbe stained to the shades of teak, rosewood, mahogani, extract -quenchingbeech, cherry etc. treatment to obtain• Rubber wood offers good resistance to Screw and golden to dark brownNail withdrawal forces. hues and decorative figures
4. The Wonders of Rubberwood Rubberwood may sound flimsy, but the wood from the Pará Rubber tree is actually a strong, tightly grained wood that is ideal for furniture, flooring, and even toys. It is commonly cultivated in South America and Asia for its natural latex sap. After its life cycle, instead of these valuable trees going to waste, they are then cut down for timber, and new rubber trees are planted to replenish the stock.It withstands the kiln-dryingprocess with very little Unlike mahogany or teak,shrinkage and takes finishes rubberwood, is consideredwell, which makes it perfect a sustainable source ofwhere a stable wood is wood. Thus the rubber India is now the thirdrequired. plantation is a sustainable largest producer source of rubber as well as of natural rubber in the timber, contributing world. positively to the environment.
5. From the start of tree breeding As we known that Rubberwood – to the first of latex collecting takes around 7 years. Over 20 years of Rubberwood, most of Past, Present Rubberwood villagers take some parts such was brought to as leaf to making a decoration Thailand for & Future product or souvenir. long time ago from South America and it grows well in any rain-forest area.At that time the need was onlythe latex for producing rubberproducts. The Rubberwood After 25-30 years, theitself may understand as the Rubberwood are producing less latex rate, then the tree will bebest plantation wood cutting down and the trunk arebecause we can use send to the sawmill and thecompletely all of it parts to field will be replanting theturn into products. Rubberwood again. Rubberwood will be treated and saw to size and sale to Rubberwood product manufacturer. Instead of throwing away of its by- Sawdust from the wood is used product such as , we also can to make compressed fuel use all of Rubberwood waste cubes and, believe it or not, the as the raw material for finer dust is used to medium density wood based manufacture incense sticks. It also makes perfect mushroom panel industry. cultivation material!
6. ApplicatIons Rubberwood furnishings are very solid, with a smooth, even look which some people find quite enjoyable. The wood is sometimes compared to teak, another close grained tropical wood, and some people prefer rubberwood to teak since teak is not always a sustainable choice. Many companies which focus on high quality and unusual furniture use rubberwood in their products.
9. Applications Building Components – Used for making, Doors Windows Steps Railings Balusters etc.
10. ApplicationsLaminated Veneer LumberRubber wood is beingused for making LVL,which is a new woodbased panel product inIndia.Packing CasesRubber wood is a widelyused timber for makingpacking cases.Veneer and Plywood Rubber wood isreportedly suitable formaking commercialplywood. Rubber wood veneersafter proper treatment withpreservative is widely usedas plywood core stock.
11. M A T E R I A L presentationJATIN SARVESH hukkeri : MADHUMITHA srinivasan : srinivasan Rubberwood RV SCHOOL of ARCHITECTURE 09 SEMESTER