the ants. Bangkirai is not susceptible to the attacks of resistance and dimensional stability. BANGKIRAI (Shorea laevis) General. The tree exudes a yellowish-white dammar which is of inferior quality and has been used to mix with other dammars. These are: Bangkirai and Merbau (but only the core wood - heartwood - of the tree), Djati teak (far too expensive to be used for wooden prefab houses) and Iron wood (prohibited to be exported), as such in fact only 2 wood species remain for the construction of reliable termite resistant wooden houses. S. laevis is a widespread, often common or even gregarious species, occurring on well-drained soils with a preference for ridges at (0-)200-1000(-1200) m altitude. Bangkirai has a high strength and durability, is hard and Excellent decay  humidity changes. A vast and very large tree up to 75 m tall, bole branchless for 18-27 m and up to 210(-240) cm in diameter, with prominent buttresses of up to 6 m high. These cracks will open and close as the surrounding The density of the wood is very variable and ranges from 600-1160 kg/m 3 at 15% moisture content. This page was last modified on 13 August 2017, at 10:03. Leaves narrowly ovate-lanceolate, falcate, 6.5-10 cm × 2.5-4 cm, thinly leathery, with 11-14 pairs of secondary veins not prominent on either surface. Average number of vessels/mm² 3–6. Bangkirai (or sometimes named Balau) is a highly rated Shorea est un genre de plantes de la famille des Dipterocarpaceae et regroupant environ 200 espèces d'arbres de grande taille, originaires du sud-est asiatique, en particulier de Malaisie, Sumatra et Bornéo Peninsular Burma, peninsular Thailand, Peninsular Malaysia, northern Sumatra and Borneo. Petals short, oblong, stamens c. 50, the appendages densely barbate. The wood is used as balau and sometimes traded separately as bangkirai. Arbre. When Bangkirai is treated on a at least a 2-year recurrent basis Ashton, P. 1998. Perforation plates simple. Vessels arranged in no specific pattern, in multiples, commonly in short (2–3 vessels) radial rows. Bangkirai wood. smooth or alternately smooth and rough owing to the interlocked grain. Shorea laevis. 30, 89, 100, 102, 159, 253, 258, 297, 374, 417, 446, 461, 476, 628, 677, 748. Bangkirai is not susceptible to the attacks of the ants. Bangkirai (or sometimes named Balau) is a highly rated timber that is frequently used for trusses and structural wood members in areas where termites habitat. heavy with high stiffness and shock resistance. When Bangkirai is treated on a at least a 2-year recurrent basis the life time is … The wood yields an excellent charcoal but is regarded as too valuable for this purpose. Nom commercial : bangkirai (ID), balau, selangan batu No.1 (trade, MY). 2006 IUCN Red List of Threatened Species. Intervessel pits alternate, average diameter (vertical) 4–6 µm, pits vestured. The  grain is straight or interlocked. construction members, railway sleepers, electric poles, parquet. Yellowish heartwood and yellowish pale light brown Untreated Bangkirai can be left in the open for more than 20 years. 20 years. The density of the wood is very variable and ranges from 600-1160 kg/m3 at 15% moisture content. Nonprotégé selon les normes CITES. It is due to its high specific gravity and high Wood diffuse porous. Only Shorea laevis has a good enough natural durability to allow end-uses under use class 5 (end-uses in marine environment or in brackish water). Exterior and interior doors, roof structures, after the process. Bangkirai when  kiln dried may show some minor cracks The wood texture of Bangkirai ranges from fine to rather It is a tree found in Burma, Thailand, Sumatra, Peninsular Malaysia and Borneo. BANGKIRAI (Shorea laevis) General. See also the table on wood properties. timber that is frequently used for trusses and structural wood members in Cookies help us deliver our services. Fruit calyx lobes unequal, larger three up to 6.5 cm × 1.0 cm. sapwood. the life time is in fact indefinite. Shorea laevifolia(Parijs) Endert, Hopea laevifoliaParijs. surface is glossy. References. Shorea laevis is a botanical species of the family Dipterocarpaceae. By using our services, you agree to our use of cookies. Downloaded on 23 August 2007. Bangkirai (or sometimes named Balau) is a highly rated timber that is frequently used for trusses and structural wood members in areas where termites habitat, however, it is fiction to believe that Bangkirai is 100% termite resistant as many others tend to believe. See also the table on wood … The stout, often twisted bole can be up to 240cm in diameter with stout, prominent buttresses up to 6 metres high and 4 metres outwards The possible presence of few demarcated sapwood in sawnwood may have an influence on the expected durability. Wood Shorea laevis is listed in the European standard NF EN 350-2. coarse. The wood surface is S. laevis is a widespread, often common or even gregarious species, occurring on well-drained soils with a preference for ridges at (0-)200-1000(-1200) m altitude. https://uses.plantnet-project.org/e/index.php?title=Shorea_laevis_(PROSEA)&oldid=327389, Creative Commons Attribution-ShareAlike License, Indonesia: bangkirai, balau tanduk (general), benuas (Kalimantan), Malaysia: balau kumus (Peninsular), selangan kumus, mikai (Sarawak), selangan batu kumus (Sabah). Répartition géographique: Inde, … Untreated Bangkirai can be left in the open for more than Average tangential vessel diameter 95–160–225 µm. areas where termites habitat. Shorea laevis is a tree with a vast, irregularly diffuse, cauliflower-shaped crown; it is capable of growing up to 75 metres tall.
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