Rebar
Steel reinforcing bar cast into concrete. Rebar is both a scanning target — you need to know where it is before coring or drilling — and an obstacle, because a dense mat reflects radar and makes it harder to see what lies beneath it.
Steel reinforcing bar cast into concrete. Rebar is both a scanning target — you need to know where it is before coring or drilling — and an obstacle, because a dense mat reflects radar and makes it harder to see what lies beneath it.