ᐅ Steel beam in concrete ceiling – how to plaster around it?

Created on: 25 Oct 2017 13:49
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NOUSEFORANAME
In our living room, there are two steel beams between the concrete ceiling slabs.
My plasterer doesn’t consider the gap between the individual concrete slabs to be a problem and can fill it.

However, he sees an issue beneath the steel beams. If he were to fill it there, it would only hold for a short time.

Has anyone in this forum dealt with a similar situation?
What would be the simplest solution here?
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NOUSEFORANAME
22 Mar 2018 11:56
Once again: the ceilings are NOT to be plastered. They will only be filled with putty, sanded, and painted directly. We do not want any plaster.

I have now solved the issue using epoxy resin and sprinkled sand onto it. This provided a good base for the plasterer to smoothly fill the steel beam flush with the ceiling. It has already been sanded and painted. It looks perfect. I also hope it will last in the long term. I spoke with a building inspector who recommended the resin solution. He says this approach will hold up.
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Bauking
23 Mar 2018 03:52
Alright, then I hope that the transition from steel to concrete in the thin layer thickness without reinforcement mesh does not crack.