Fire damage is cosmetic and easily repaired – Cargill – Channelville, TX
With the foam burned off, the concrete is exposed. In a few places, sacrificial steel can be seen. This is a light network of rebar immediately tied against the urethane and covered with a small amount of concrete. Sacrificial steel is used as an anchor to tie the heavier steel reinforcing of the structure. So, the pitting pictured is of no consequence other than cosmetic.