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8 replies
7k views
8 replies
Load-bearing capacity for concrete?
Hello
I have searched the internet and the forum but haven't found what I'm looking for.
I am going to cast a floor, but it's an intermediate floor (between the ground floor and the basement).
I want to know the load-bearing capacity per dm² of concrete if you have a layer of 4, 5, 6, 7, 8 cm thick concrete.
Then there might be values if you have reinforcement as well.
I want to cast as little concrete as possible and increase the amount of insulation. Today, the floor is 12 cm thick and without reinforcement, so I have to replace it. I then have about 10 cm to use, but there I need both insulation and to lay underfloor heating.
I have searched the internet and the forum but haven't found what I'm looking for.
I am going to cast a floor, but it's an intermediate floor (between the ground floor and the basement).
I want to know the load-bearing capacity per dm² of concrete if you have a layer of 4, 5, 6, 7, 8 cm thick concrete.
Then there might be values if you have reinforcement as well.
I want to cast as little concrete as possible and increase the amount of insulation. Today, the floor is 12 cm thick and without reinforcement, so I have to replace it. I then have about 10 cm to use, but there I need both insulation and to lay underfloor heating.
Moderator
· Stockholm
· 57 876 posts
Sounds impossible that it's not reinforced. Unreinforced concrete has virtually no load-bearing capacity whatsoever.
What exists today is from 1938 and there is no reinforcement in it.
I don't want wood in the construction as it is a stone house and the basement is not heated.
What I pour will of course be reinforced, but the question is how thick a layer I need to pour.
X cm Self-leveling compound
X cm Underfloor heating
X cm Insulation
X cm Load-bearing concrete with reinforcement.
I don't want wood in the construction as it is a stone house and the basement is not heated.
What I pour will of course be reinforced, but the question is how thick a layer I need to pour.
X cm Self-leveling compound
X cm Underfloor heating
X cm Insulation
X cm Load-bearing concrete with reinforcement.
Depends a lot on reinforcement and the span in question. Your question cannot be answered.
I have 20cm of concrete with coarse reinforcement at the top and bottom edges. It spans 9.5x5m without any additional support. A good friend has 12cm in his garage but a support wall and a significantly smaller span. A cast vault is not something you can estimate roughly, it must be calculated by a structural engineer, or alternatively, you can get the design "for free" from the supplier of, for example, permanent formwork.
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