Black steel starts rusting even before it is used. On the other hand, no corrosion effect has been detected on GFRP fiberglass rebar. https://www.tuf-bar.com/application/gfrp-vs-steel/gfrp-vs-black-steel/

steel rebar

1190 × 520 — PNG 425.1 KB

مرفوع 6 years مضى — 2803 views

Black steel starts rusting even before it is used. On the other hand, no corrosion effect has been detected on GFRP fiberglass rebar. https://www.tuf-bar.com/application/gfrp-vs-steel/gfrp-vs-black-steel/