5 ms·
This isn't stainless rebar, it's stainless-coated rebar. Perhaps still to expensive to end up widely used, but it should be a lot cheaper than pure stainless.
by jefftk 1y ago
This isn't stainless rebar, it's stainless-coated rebar. Perhaps still to expensive to end up widely used, but it should be a lot cheaper than pure stainless.
- brudgers 1y agoGalvanized rebar and epoxy coated rebar have been available for many decades. They are so much more expensive than ordinary carbon steel rebar to be unicorn poop rare. If there is a break in the finish, it is as susceptible to corrosion as carbon steel. This means every step requires special handling and rigorous inspection. It cannot be field fabricated with a hand bender if a stirrup is missing or damaged. Tying and placement has to be done with unusual care to avoid damage (and again non-standard level of inspection). Galvanizing and epoxy coating are long lead time and require prefabrication (bending). So you are shipping, handling and receiving bespoke space filling shapes instead of commodity straight bars to specialty job shops with limited capacity and well booked dance cards. At every step, everyone has to price their work against all that complexity, uncertainty and potential for delays.
- jpgvm 1y agoGalvanized rebar is about 20% more expensive and is actually widely used in highway construction, particularly when salt is a major concern. Epoxy coated rebar turned out to have much poorer efficacy than originally expected as you noted but the same is not true of galvanizing which is a much more durable coating.
- nullc 1y agoGalvanizing still works if there are scratches in the finish because there is a radius of protection from the galvanization.