Engineered bamboo From Wikipedia, the free encyclopedia Engineered bamboo is a low cost product manufactured from bamboo. It is designed to be a replacement for wood[1] or engineered wood, but is used only when high load bearing strength is not required[2] because building standards for this type of use have not been agreed by regulatory bodies.[3] Engineered bamboo comes in several different forms, including lamboo, which has three times the structural capacity as normal timber[4] and is defined and regulated by the ASTM International Standards.[5] Engineered bamboo has been used as paneling, vehicle beds, concrete formworks,[2] lightweight building construction[6] and even for shelters after the 2004 tsunami.[7] In comparison to the woods that have been traditionally used a number of benefits and drawbacks have been identified. Lower cost, especially when replacing wood that would otherwise have been imported, is a key advantage.[8] Further benefits include greater hardness and shape retention, especially in high temperatures.[9] However, bamboo is not as resilient as most woods and will decay more rapidly than other woods if not treated with preservatives.[10] New building methods have had to be developed for engineered bamboo as its properties are sufficiently different, and make normal wood-working methods used with (non-engineered) bamboo unsuitable.[11] In order to overcome the typical loss of strength bamboo incurs when bending takes place post-harvest, an alternative method to overcome this has been developed. Pre-harvest bending of the bamboo stems in zig-zags, allows the bamboo to later form a Warren truss.[12] Alexander Vittouris has proposed a much simpler 2D S-bend shape, which — after harvesting, and in sufficient quantities — could be assembled into a variety of 3D shapes. The arboriculture technique used to make both shapes is similar to tree shaping, and result in parts similar to knee (construction). en.wikipedia.org/wiki/Engineered_bamboo
Posted on: Fri, 15 Aug 2014 03:55:08 +0000
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