ᐅ Frost skirt and foundation slab integrated in a single pour

Created on: 21 Jun 2016 15:11
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tomleu
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tomleu
21 Jun 2016 15:11
Our foundation slab was constructed according to the WU guideline. Trenches were excavated, formwork installed, reinforcement mats placed, and concrete poured.

- Is it correct to pour the frost protection edge and the foundation slab in one continuous pour?
- Since the slab shrinks while drying, this creates tension. If both elements are connected, isn’t the risk of cracks significantly higher?

Is the construction company even allowed to build according to the WU guideline, or does this have to be specified in the contract (according to the building code in our case)?

Additionally, the exterior walls were built the very next day. Is this drying time sufficient?

Our foundation slab is approximately 18cm (7 inches) thick. Due to unevenness, it could be as little as 15cm (6 inches) in the worst areas.

Where can I find the relevant regulations to read?
Thank you!
Jochen10421 Jun 2016 15:45
Hello [here could be your name],
and welcome to the house building forum
tomleu schrieb:
Is the construction company even allowed to build according to the WU standard, or does this have to be specified in the contract (in our case according to the Building Code)?

Why wouldn’t your construction company be allowed to build? I don’t quite understand your question.
tomleu schrieb:
Also, the exterior walls were started the very next day. Is the drying time sufficient?

In my non-professional opinion, that should be enough.
tomleu schrieb:
Our foundation slab is about 18cm (7 inches) thick. Because of unevenness, it might be only 15cm (6 inches) at worst.

That sounds very thin. Ours is 25cm (10 inches), and our neighbor’s is even 30cm (12 inches). However, this should be determined based on your structural engineering and soil report.
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tomleu
21 Jun 2016 16:13
post deleted by moderation due to link posting; Building expert


Building expert
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tomleu
21 Jun 2016 16:14
Best regards
Tom
Jochen10421 Jun 2016 16:53
Hello Tom,
that probably just means that, without an agreement in the contract, you cannot simply assume that your foundation slab was built according to waterproof concrete (WU) standards.