1950s split-level house construction floor structure

[jayjahn]

Hello!

What type of floor structure was common in the 1950s for split-level houses?

In-situ concrete slabs with wood patterns from formwork are visible in the basement, do you have any tips on how it might be constructed?

Not interested in answers like "just open the floor and check?" This is only a planning stage for a property I do not own.

 

[justusandersson]

A great many 1950s houses, either with basements or standard cellars, have cast-in-place reinforced concrete floors. The wood pattern you see is from the casting mold. On top, there are usually raised (about 2x3 inch) wooden floors. The concrete provides all the support. A good construction where the concrete floor also functions as a heat reservoir.

 

[jayjahn]

A lot of 1950s houses, with basement or with a standard cellar, have cast-in-place reinforced concrete slabs. The wood pattern you see is from the casting mold. On the top side, there are usually raised (about 2x3 inches) wooden floors. The concrete handles all the load-bearing. It's a good construction where the concrete slab also functions as a heat storage.

Thanks for the answer! Then the spillwater grodorna are probably embedded in the concrete if the raising is usually 2-3 inches. So when renovating a bathroom with new placements, you might have to expect to drill right down into the basement and place the grodorna there?

 

[justusandersson]

What do you mean by "spillvattengrodor"? Water traps?

 

[jayjahn]

What do you mean by "spillvattengrodor"? Water lock?

sewage pipes, a composite group from e.g. bathrooms is called a spillvattengroda.

 

[justusandersson]

I don't think it was common to cast such junctions. At least not in small houses. When I did construction practice, cast iron sewer pipes were still used, and I can't recall anything like that. I believe that they tried to avoid casting in joints for as long as possible.