Answer: Option B Homepage/; Uncategorized/; disadvantages of metals Due to the increasing shortage of timber in the country and other economic factors have led to the use of steel and concrete sleepers on railways. Disadvantage of wooden sleeper It is easy to be affected by humidity. Contact us: email@example.com, The main disadvantage of steel sleepers is, The sleepers in the form of two bowls placed under each rail and connected together by a tie - bar, are known as. These sleepers can be supplied with or without cant, with holes or with Welded arrangement of Base plates, shoulders etc. 06. Metal sleepers having many good advantages still it posses some disadvantages in it. Practice Test: Question Set - 02 1. Steel sleepers requires high maintenance. A well-built steel structure can last up to 30 years if maintained well. Timber Timber sleepers have a long history of effective and reliable per-formance in the railway environment . Practice Test: Question Set - 02 1. for fixing of rails as per the customer’s requirements. Disadvantages of Steel Sleepers. Cracks at rail seats develop during the service. They rely on the ballast in the sleeper “pod” to provide vertical and lateral support. Structural steel is the most recycled material on our planet – today’s structural steel is made of 88% recycled product, is fully recyclable in the future and can be reused without further processing. These sleepers use to prevent the cantilever action between the two supports of the sleeper joints. Cast Iron Sleepers . The sleepers can be classified into five main categories, generally depending upon the materials of construction: Wooden sleepers; Steel sleepers ; Cast Iron Sleepers; R.C.C sleepers; Prestressed Concrete Sleepers; Wooden Sleepers. Though steel is harder and stronger than iron. The typical steel column occupies 75% less floor space than an equivalent concrete column. Welding Process. Iron is the base of steel. History. This makes it susceptible to corrosion. Some Examples of recycling materials are as follows. 05. These are not suitable for all types of rail sections and gauges. The major advantage of timber sleepers is their adaptability. Also, it has other elements such as cobalt, nickel, chromium, titanium, tungsten and much more. Disadvantages of Structural Steel Structures. Rail wood sleeper advantages Rail Track Structure. Steel sleepers have the following main advantages/disadvantages over wooden sleepers. There are three ways of removing and replacing a steel sleeper. Steel sleepers are different to timber and concrete sleepers, mainly because they are relatively light in comparison to their rigidity. A disadvantage of traditional track ... to prevent the sleepers from moving. – Service life of wooden sleeper is shorter (10-30 years). High maintenance cost and more corrosion. 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