I have never seen anyone use rebar that was not already fully rusted before they even inserted it into the concrete.
apparently common rebar is made from tempered steel instead of stainless steel.
gotta save every cent, right?
its not quite tofu dregs like china. but it is still trash.
there is apparently a site dedicated to pushing stainless steel rebar... it lists a sad 30 examples of structures built with it.
In Europe stainless steel rebars have been widely used since the mid-80s. In North America, their use in highway bridges has been steadily growing since the mid-90s. Below, you can find some examples of structures that have used stainless steel rebar.
www.stainlesssteelrebar.org
interestingly, the oldest example is from, 1941. progresso pier in mexico