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0000000709 00000 n 0 Of high strength and durability, balau is mainly used for heavy construction. Merbau wood has a unique feature for its color: there are little golden sparks in the merbau wood, only 2-4mm long and 1mm wide. The natural appeal, strength and versatility of timber makes it an ideal choice for retaining wall landscaping applications. �0�j!Ƹk?iF8ڮp>�.�>�m%�1Y�w��+0ѳ�Ag8t`F�/��i_����>��p�KA��9X���jK���� }��.J���%��. A durability Class 2 rating (BS EN 350-2 classes) and is compatible in hardness to oak (English Oak Janka Hardness: 1,120 lbf (4,980 N)). Red balau is a purplish-red or dark red-brown timber, with an interlocked grain, and a coarse but even texture. Balau decking is highly recognisable. Balau is susceptible to pinhole borer damage. It is in the last 20 years that it has become synonymous with hardwood construction in South Africa. April 4, 2011. The heartwood is durable to moderately durable and very resistant to preservative treatments. Any machining and surface preparation should be done immediately before gluing. Treated specimens of balau laut (50 mm x 50 mm x 600 mm) gave an average service life of 11 years. Retaining wall systems include cantilevered round or sawn timber, mass wall and crib wall construction. The heartwood of balau is yellow to brown, which is distinct from the paler sapwood. 0000001405 00000 n Not to be confused with the more common red and yellow balau timbers, balau (Shorea albida) is used for heavy construction, wharfage, sleepers and shipbuilding. Question I need to make some posts and hand railing out of mangaris to match the decking material. General Description: The heartwood is yellow-brown, varying to brown and dark reddish-brown, with an interlocked grain and a moderately fine and even texture. xref Balau features heartwood that is of a yellow to brown colour and has a paler sapwood, which can be up to 50 mm wide. 11 0 obj <> endobj An engineer will be required to plan and design walls greater than one metre, including the footings and drainage. Treated specimens of balau laut (50 mm x 50 mm x 600 mm) gave an average service life of 11 years. Balau is thus placed in the durable class with some species classified as extremely durable. In relation to its density, balau is relatively easy to work. The small number of footings required in pole frame construction also ensures minimal disturbances to the site. Because of its density and durability it has become the premier choice for external and marine applications. 0000000931 00000 n Balau is thus placed in the durable class with some species classified as extremely durable. 0000006167 00000 n As this dries out over time it can cause cracking especially in such a thin veneer. Balau is also susceptible to pinhole borer damage. It is classified in Malaysia as being less durable than balau, ie moderately durable. 0000002254 00000 n This decking solution is perfect if you want a deck that gets better as time goes by. Balau can be painted, stained and polished but is not suitable for steam bending. 0000007870 00000 n 0,87 7,0 0,69 8,8 4,8 27 moderately stable 80 119 16670 PHYSICAL PROPERTIES 1,8 Working Properties : The wood is moderately difficult to work with machines as the interlocking grain and toughness has a blunting effect on tools. It is also used for wharfage, sleepers, ship building. Balau can be left to naturally age for a rustic appearance or treated please see our accessories for a range of products. According to species, durable to very durable. Untreated railway sleepers (125 mm x 237 mm x 1,950 mm) of balau kumus and balau laut lasted a minimum of 15 years and 11 years respectively. Untreated railway sleepers (125 mm x 237 mm x 1,950 mm) of balau kumus and balau laut lasted a minimum of 15 years and 11 years respectively. Pre-drilling is advisable when nailing. Balau CONSTRUCTIONAL TIMBERS Uses: Heavy constructional work, bridge and wharf construction, sleepers, boats, etc. 0000006957 00000 n This is a Malaysian hardwood with natural durability and will gradually weather to a silver-grey colour. Balau should not be confused with the more common red balau and yellow balau species. 0000162859 00000 n Balau is thus placed in the durable class with some species classified as extremely durable. Resin pockets may also be present. If balau is being nailed, the timber should be pre-drilled. 0000005416 00000 n 0000163090 00000 n The heartwood of balau is yellow to brown, which is distinct from the paler sapwood. Canals filled with white resin. Balau is rarely available in Australia. The natural appeal of timber ensures that its role is not purely structural however, with timber poles complimenting architectural designs aimed at harmonisation with the natural environment. Walls up to one metre in height follow a basic design and can usually be constructed using standard proprietary wall systems. Detailed scientific and mechanical properties for Batu Wood, Red Balau Hardwood Lumber. %%EOF Selangan batu is a yellowish-brown timber with interlocked grain, and a coarse, but even texture. Merbau wood has very obvious wood variation from heartwood to sapwood, with dark brown color of heartwood to light golden color of its sapwood. Although balau is a high-density hardwood, it is relatively easy to work. 0000001067 00000 n Drainage of retaining walls is a critical factor in influencing the long term stability of the wall and should thus form a significant part of the design and planning process. Its moderately fine and even texture presents an interlocked grain, which produces a stripe figure on the radial surface. Balau is a very oily and resinous wood so even though it has been kiln dried it still contains a fair amount of resins and oils. April 4, 2011. 0000009036 00000 n The wood weighs more than 750 kg/m3 (47 lb/ft3) at 12% moisture content. 0000112058 00000 n Balau is a yellowish-brown, brown, or reddish-brown timber vvith interlocked grain, and a moderately fine and even texture. Weight averages 930 kg/m³ (58 lb/ft³); specific gravity .93. <<5C795B974324CF4486727CC87197DDE4>]>> 0000003060 00000 n Canals filled with white resin. Balau is a heavy, hard, and strong timber that dries slowly with moderate to severe end checks and splits. Untreated railway sleepers (125 mm x 237 mm x 1,950 mm) of balau kumus and balau laut lasted a minimum of 15 years and 11 years respectively. Its moderately fine and even texture presents an interlocked grain, which produces a stripe figure on the radial surface. The main workability issue is due to the presence of resin pockets, which means resin can build up on cutting equipment. Although in Malaysia it is considered to be a very hard wood. > Hardwoods > Apocynaceae > Alstonia > spectabilis Common Name(s): Hard milkwood, Scientific Name: (and A. macrophylla) Distribution: South and Southeast Asia, Pacific Islands, and northern Australia Tree Size: 100-130 ft (30-40 m) tall, 2-4 ft (.6-1.2 m) trunk diameter Average Dried Weight: lbs/ft3 ( kg/m3) Specific Gravity (Basic, 12% MC): , Janka Hardness: lbf … 0000000016 00000 n Batu, Red Balau. 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Find Antiques, Warwick Bass, Reign Synonym, She's Dangerous On The Dance Floor, 2012 Australian Schoolboys Rugby League, Xbox 360 Wireless Controller For Windows, Half Man Half Horse, Merle Oberon Cause Of Death,