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January 31, 2013

Steel fiber concrete cuts need for rebar

  • A new mix allowed crews to build shear wall link beams with 40 percent less rebar at The Martin apartments in Belltown.
    Special to the Journal

    Photos courtesy of Cary Kopczynski & Co. [enlarge]
    The city required two peer reviews before it would accept the new technology.

    Pouring concrete into congested rebar is difficult: Concrete is hard to place and vibrating around the tangle of rebar to remove the voids makes it even harder.

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