Concrete Sleeper

A concrete sleeper is a railroad tie made out of steel reinforced concrete.

Read more about Concrete Sleeper:  History, Types, Advantages, Under Sleeper Pads, Disadvantages, Alternatives, Manufacture, Transport, Installation, Oldest, Turnouts, Problems, Inventors

Famous quotes containing the word concrete:

    “We are all hungry and thirsty for concrete images. Abstract art will have been good for one thing: to restore its exact virginity to figurative art.”
    —Salvador Dali (1904–1989)