Seperation of steel from concrete
Seperation of steel from concrete
(OP)
I am working on an old house with steel floor girders and metal support system (raised foundation). Some of the metal support system has corroded over the years due to moisture from the concrete and metal not being galvanized. I am pouring new concrete on top of existing concrete footing and installing a new metal support system. I plan to put a black building paper to create a moisture barrier between the concrete and the metal. I will also apply Rust-oleum to the metal. Is there any other way that we can eliminate the metal corrosion in a situation like this in the future?
I am sorry I tried to load a picture of the new hanger but it does not add the photo to the thread. If you know how to load pictures please let me know.
I am sorry I tried to load a picture of the new hanger but it does not add the photo to the thread. If you know how to load pictures please let me know.






RE: Seperation of steel from concrete
A few things:
1. Not sure about the benefit of Rustoleum if you don't properly prepare the surfaces - sand-blasting or shot blasting (SP-6) would be very helpful for long term durability.
2. There's probably better coating systems than Rustoleum to be honest.
3. Vent the space adequately to minimize humidity.
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RE: Seperation of steel from concrete
RE: Seperation of steel from concrete
Noxyde paint system (by rustoleum) doesn't require particularly onerous preparation base don when I've seen it used. Its meant to simply encapsulate any corrosion so removing the worst of it by waterblasting is often enough to get the paint system to bond to the surface. It doesn't need to be blasted back to white metal as far as I'm aware.
RE: Seperation of steel from concrete
RE: Seperation of steel from concrete
RE: Seperation of steel from concrete
RE: Seperation of steel from concrete