Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of wooden railway sleeper in China, also supports customized service with low price. Please feel free to buy cheap wooden railway sleeper made in China here from our factory.
Railroad sleepers were originally made of wood, the wooden sleeper has the characteristics such as elasticity, light weight, simple in making, good insulation properties, fasteners simply connect to the wooden sleepers, and it is easy to lay, maintenance and transport. What's more, there is a greater coefficient of friction between the wooden sleepers and the ballast.
The drawback of railroad sleepers is that the useful life is short, wood consumption is large. To effectively extend the service life, sleepers generally must be used after filling the anti-corrosion. Because of the short useful life of the wooden sleeper, it has been gradually replaced by concrete sleeper on the main trunk in China.
Now, pre-stressed concrete is widely used, especially in Europe and Asia. Steel sleepers are common on secondary lines in the UK; plastic composite sleepers are also employed, although far less than wood or concrete. As of January 2008, the approximate market share in North America for traditional and wood sleepers was 91.5%, the remainder being concrete, steel, red ironwood and plastic composite. There are many kind of wooden railway sleepers, Hardwood Sleepers, Oak Sleepers
What wood are railway sleepers made of? Let's talk about it. The wood suited for the railroad sleeper includes as follows:
1. Common track section and turnout track section: Elm, birch, oak, jarrah, karri, sal, mora, maple, azobé, poplar, larch, pine, Yunnan pine (a kind of Chinese pine), spruce, fir, hemlock and other broad-leaved tree species (poplar isn't used as turnout sleeper).
2. Bridge track section: Huashan pine (a kind of Chinese pine), larch, Yunnan pine (a kind of Chinese pine), spruce, fir, hemlock, koraiensis, etc.
A variety of softwood and hardwood are used as the sleepers. Oak, jarrah and karri are popular hardwoods, which are increasingly difficult to obtain, especially from sustainable sources. The softwoods such as Douglas fir have the advantage of accepting treatment more readily, they are cheaper, lighter, easier to treat and more readily available.
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