Floor slab removed afterward, reinforcement visible

The general contractor agreed today to clean the damaged area, apply corrosion protection, and then repair it with PCC concrete replacement.

And you as a layperson now want to judge what consequences this will have for the future?

By the way, the expert should have already determined during the acceptance of the floor slab that the measurement was incorrect. But apparently, you also trusted yourself to handle that.

And you as a layman now want to judge what consequences this will have for the future?

By the way, the expert should have already noticed during the acceptance of the base slab that the measurement was incorrect.
But apparently you trusted yourself with that as well.

The products are suitable for this purpose, have the building authority approval, and the general contractor processes the stuff according to the manufacturer's instructions. Theoretically, this is therefore okay. For the rest of the process, my trust in the people is sufficient.

I did not come up with the described procedure myself; I got it from someone with expertise.

As also a mechanical engineer, I can understand his approach and the construction expert gets horrified because they really like engineers as customers (difficult customers).
A construction surveyor is always great, but always just a specialist idiot for a specific part. Then you would need a master mason or something similar to look at the matter. The part cited from the DIN with 2-5 cm processing down to the reinforcement is indeed being done. Cleaning beforehand etc. is also included. In my opinion as a layman - without having seen the construction site - they are doing exactly what is required by the DIN.

But what you also saw: the construction company botches things - if you don’t pay attention. Consequently, an expert witness could possibly be the right thing after all.

but what you also noticed: the construction company botches things - if you’re not careful. Logically, an expert might actually be the right choice.

Hello Payday.

You are right. The company generally works very neatly, but with some details the foreman and site manager get a bit confused when I want to know precisely. This happened with the detailed execution of the sealing in the plinth area (L-barrier). I have since read up a lot on this, and that is a good thing. With these trades, I pay very close attention to the details. If later on there is botching with the screed or drywall, it is easier to detect and fix. The ground floor is now finished and overall I am feeling positive. Today we chose clinker bricks.

In general, as a layperson one certainly cannot become an expert for the entire construction, at least not within the construction period. But one can inform oneself about some things well enough to form a judgment. This is completely normal in the professional field, and there I or my employer am still liable for my judgment.

. But you can certainly inform yourself so precisely about some things that forming a judgment is possible. In the professional field, this is also completely normal, and there I or my employer am still liable for my judgment.

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Don't annoy the all-knowing building surveyors, as other technically skilled people can also read and understand a DIN standard but a good engineer also knows when he has reached the limits of his knowledge.

Are DINs now freely accessible?