I have heard it said many times that one should not weld the rebar cage
together, but tie it together using tie wires. But I have never heard any
explanation of why.
What problems would be caused by welding? I can't see how such a minor detail
would make any significant difference, but a welded cage is certainly easier to
handle before the concrete is poured in, and less likely to fall apart just as
the concrete is being dumped.
Don k4kyv
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