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:

    “In his comprehensive delight in all experience Dickens resembles Walt Whitman, but he was innocent of that nebulous transcendentalism that blurred Whitman’s universe into vast misty panoramas and left him, for all his huge democratic vistas, unable to tell a story or paint a single concrete human being.”
    —Edgar Johnson (1912–1990)