Unreinforced Concrete

Some articles on concrete:

List Of Longest Masonry Arch Bridge Spans
... Arches with a core of reinforced concrete covered by facade stone for decoration are not to be included in this list, the load-bearing part of the arch ... It can also be filled with concrete, in which case the filling itself become able to bear load in addition to the load carried by the ring of voussoirs ... If the voussoir stones are thin they can not take a lot of weight so instead it is the concrete filling that becomes the structural part of the arch ...

Famous quotes containing the word concrete:

    freeways fifty lanes wide
    on a concrete continent
    spaced with bland billboards
    illustrating imbecile illusions of happiness
    Lawrence Ferlinghetti (b. 1919)