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The workers would switch the crane back and forth, depending on whichever was needed in the hole - rebar or concrete.
Or perhaps, twisted, tangled strands of rebar poking through piles of concrete rubble in the demolished remains of a hotel or a factory.
Concrete walls and roofs reinforced with rebar had absorbed the blasts, or the shells had simply penetrated the ceilings, leaving only a hole.
New support columns have more rebar and less concrete to support the floor above.
However, many contractors and precast manufacturers who use steel rebar to reinforce countertops report success.
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