Ready-made basement - Filling corners

As I said, I am just an amateur and have no idea what is stated in the execution of the WU guideline. I only had the topic with us as well, so I can only say how it was done with us and what the planners/contractors said about it. How far does the foam go into the component? That is simply visible with an element wall. It is hollow when it arrives. You can also see that in the picture. You just have to look inside from above to see whether foam is pushing through inward or not. I haven’t reread everything, but I am of the opinion that the OP did not say that it is an execution according to WU-basement, white tank, or anything else (which are terms often mixed up). With us, vertical joint sheets were worked into the butt joints. I was told that this is done in the "white tank" method to achieve tightness. Whether the additional foaming of the butt joints was the belt to the suspenders, I do not know.

but I am of the opinion that the OP did not say that it is a version according to WU basement, white tank or anything else (which is often confused terminologically).

That's right, he did not respond to my question. My fault.
This is not understood by laypeople and is intentionally confused by those who sell it to laypeople - would be the right sentence.
There is nothing to confuse here.

WU basement, white tank, whatever - it's all the same. The only difference: there is only one way to do it right and that is stated in the WU guideline. Since the term "WU basement" is not trademark protected, a lot of nonsense is done with it.

But as I see, the incentive to be taught here is not very high.

Whether the additional foaming of the joint seams was the belt to the suspenders, I don't know.

uhhhh - you mean the good old sealing foam? Yes, that was definitely the case.

I'll disconnect here then, enjoy geeking out further.

But as I see, the incentive to be lectured here is not that high.

By whom?

I’ll log off here then, carry on with your expert discussions.

And why get offended right away?

2. I would avoid placing profiles on the internal corners if possible and rather seal them, since we expect annual movements here that lead to cracks. With sealing, you can best "touch it up" again.
3. For the internal external corner, I would like to see how the elements come together there to estimate where the crack is most likely to occur.

Hello Jann, thanks for the answers. What does sealing mean? With acrylic?

Regarding the internal external corner: I will be on site then and will provide pictures afterwards. But there is no joint there, only the corner of the concrete part is chamfered.

And about the question concerning the WU basement. We are not building a "white tank". The basement builder sold us a pressure-waterproof basement with epoxy resin. Whether that is good or bad, I don’t know. Actually, I would not have built any waterproofing (we only have sand), but we have to allow surface water to infiltrate. It made sense to me that this then runs into the filled, less compacted pit, which is why I decided on that.

I have access to a large standards database. Is the WU guideline a standard or a guideline? What is the number of it?

Hi,

this is the DAfStB guideline Watertight Concrete Structures

maybe I’ll do an explanatory test about it sometime

a “positive pressure watertight basement” would then be a white tank if it is properly constructed.
I don’t want to discourage your decision now, but €500 for a consultation with a professional would surely have saved you a lot of money. Water enters through cracks in a concrete component. If you seal the concrete with epoxy resin and it then cracks or is already cracked (sealing is not grouting), then you just have a sealed concrete surface through which water penetrates.
In your case, I don’t think you’ll have any problems, but what you bought is not the reason. In my opinion, without knowing all the details now, you were sold something. But anyway, you have it now and I think it will work.

Hello Jann, thanks for the answers. What does sealing mean? With acrylic?