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At D-603, the original slab (floor) was pulled out and a new mesh of steel reinforcements was placed and bonded into holes drilled at the edge of the slab or the supporting beam, the report says.
Although replacing steel rebar with GFRP appears to be an easy fix, Benmokrane echoes many civil engineers (e.g., engineer Larry Bank’s commentary in “FRP rebar: Shear reinforcement and detailing” ...
With Option 2, we allow slabs to crack randomly but control crack widths with steel reinforcing bars or welded wire reinforcement. Typically, contraction joints are not installed with this option.