ᐅ Is Structural Engineering Dependent on the Material? Building with Aerated Concrete T10

Hello,

I have a general question. Originally, we planned to build with Poroton T10 blocks.
The detailed design, structural calculations, and thermal insulation verification were all based on T10.

However, since we are having significant issues with our construction company and want to separate from them after these approvals are completed, planning to contract the trades individually,
I’m wondering if the structural calculations and thermal insulation verification are tied to the specific block type.

In our building area, roughly 80% of the shell contractors use aerated concrete due to easier handling and lighter weight, I assume.
Since shell contractors are currently in short supply here, I’m questioning whether it’s a good idea to insist on Poroton for the shell builder. If they even submit a bid, I expect it would be marked up.

So my question is whether anyone has faced a similar situation. Not necessarily the difficulties with the construction company 😉
As I understand it, using a block with the same compressive strength class and equivalent U-value should not be a problem. Or am I mistaken?

If the U-value and compressive strength class are the same, it’s relatively unimportant. However, I wonder how one can comply with the energy saving regulations using a T10.

Lumpi_LE schrieb:
If the U-value and compressive strength class are the same, it doesn't matter much. However, I wonder how compliance with the energy saving regulation can be achieved with a T10.

That would be great, are you sure about that?
I don't really care how the company meets the energy saving regulation. But according to the Wienerberger website, the T10 is suitable for single-leaf walls.

Lumpi_LE schrieb:
If the U-value and compressive strength class are the same, it is relatively unimportant.

I wouldn't say it is completely unimportant. Even a different thickness of the block can result in a different support for the concrete slab.

Clearly, the stone thickness must be consistent. I wouldn’t want to build with less than 36.5 cm (14.4 inches) either.

I'm too lazy to scroll back through your draft thread right now: are the walls on the upper floor positioned directly above those on the ground floor?

arnonyme schrieb:
whether it’s
really a good idea to involve the structural builder with Poroton. Even if they do submit a quote, it will probably include some extra costs.

I always recommend not asking a bricklayer specialized in red bricks to build in white bricks against their usual practice, and vice versa. But I would be more concerned about complications due to lack of experience with the material than expecting an overpriced quote. The purchase prices for the bricks themselves probably won’t differ that much.

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