A concrete sleeper (British English) or concrete tie (American English) is a type of railway sleeper or railroad tie made out of steel reinforced concrete. == History == In 1877, Joseph Monier, a French gardener, suggested that concrete reinforced with steel could be used for making sleepers for railway track.
A concrete sleeper (British English) or concrete tie (American English) is a type of railway sleeper or railroad tie made out of steel reinforced concrete. == History == In 1877, Joseph Monier, a French gardener, suggested that concrete reinforced with steel could be used for making sleepers for railway track.
Source: Wikipedia "Concrete sleeper" · CC BY-SA 4.0
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