Base plate with polymer fibers and less reinforcing steel

No idea! What are you building from Danwood? I like their houses and would have liked to build with them - but in the end they were too expensive for us.

There is a Point 138.1 from DanWood. It fit perfectly into our concept. Because at DanWood, the entire interior fitting is simply included.

So far, I also have to say, toitoitoi.
As the finances were calculated for us, we are only slightly over the plan.

Interesting. That the idea of "fleet consumption" has already reached slab manufacturers was new to me as well.

But it doesn't surprise me. With all the QNG stuff, it makes sense to optimize not only the house but also the slab according to the calculation regulations.

As the finances were calculated for us, we are only slightly above the plan.

Are you aware that with Danwood quite a few things are not included in the price? You can find details here in the Danwood subforum

You are aware that quite a few things are not included in the price with Danwood? You can find details here in the Danwood subforum

When signing the contract, the Danwood representative told us what we have to take care of ourselves and what not. Also how much budget we need for the individual ancillary cost items.

Yes – there were some small surprises when reviewing the documents carefully. But so far we are still within budget with all the ancillary costs that have been mentioned to us...

I am surprised that no one has addressed the issue of microplastics in drinking water yet. After all, these polymer fibers are nothing different. At the latest, when such concrete structures are demolished, a lot of it is released and enters the ecosystem - whether you live there or not doesn't matter to the environment at first. It's already frightening that this is supposed to contribute to improving the ecological balance. It also took a long time with asbestos before people changed their approach. Of course, steel is more energy-intensive but absolutely unproblematically recyclable. When I think of our old house and the foundation slab we demolished: the concrete was crushed in a crusher and processed into filler material, and I took the iron to the scrap dealer. Nothing was left over. Call the waste disposal company and tell them you have a polymer fiber reinforced foundation slab to dispose of. They'll roll out the red carpet for you. We had the same issue with bricks filled with stone wool - hazardous waste according to the disposal company because of various waste groups and only difficult to separate. That's why we ultimately decided on perlite as filler because it can be disposed of 1:1 with the brick and under the same waste group without any further separation etc.

So we have now decided on the conventional slab-on-ground.

Nevertheless, here is something for documentation purposes:

The structural engineer for the house did not care about the whole thing. He was only interested from the top edge of the slab-on-ground. The structural analysis for the slab would probably have been recalculated.

You could probably save up to 70% steel. (That is already far too little steel for me at this point)

The recycled aggregate can apparently be recycled despite PPE fibers. But how it goes from the slab to the aggregate - no idea.

Thanks again for all the arguments for and against.

What ultimately matters to me:
We are not building an industrial building that needs a particularly elastic and robust slab, we are building a house, like thousands of others out there already on a normally reinforced slab. I will not be driving a forklift or a truck over it.