Casting / Ground anchor

[Bertil Erik Ohlsson]

Hello

What is the guy saying at 1:27 in the video ...then not as much water will evaporate??...sink...???

Big thanks in advance
/Beeo

 

[altaxis]

I think he says Dunsta.

 

[Bertil Erik Ohlsson]

Dunsta tycker jag att han säger.

Thank you, I hear that too But the next sentence, what is going to sink?

 

[fgo]

Interpreting it as the actual mount.

 

[Bertil Erik Ohlsson]

I interpret it as the actual fixture.

Thanks, it surely can't be the concrete that's "collapsing," right?

 

[jonaserik]

In such small amounts as it seems, concrete does not settle more than marginally, which needs to be accounted for. Concrete always shrinks when the water leaves, see what happens with cast floors and slabs for houses. The concrete that has the least shrinkage is exspanderbetong.

 

[C.Lundin]

In such small amounts as it seems, concrete does not shrink more than marginally as it needs to be accounted for, concrete always shrinks when the water leaves, see what happens with cast floors and slabs for houses. The concrete that has the least shrinkage is expanderbetong

An addition is that expanderbetong does not shrink at all. But yes, it got a bit OT now.

 

[jonaserik]

An addition is that expansive concrete does not shrink at all. But yes, we went a bit OT now.

Not going deeper into that, where does the water in the concrete go, wrote that it has the least shrinkage and nothing else.

 

[Bertil Erik Ohlsson]

...and I just poured 3 out of 6 piers in concrete forms for securing a 12 sqm greenhouse, where the frame was supposed to be perfectly horizontal. (Yes, I know, I should have built a foundation like the one in the picture and no, I haven't used adjustable post bases..)

 

[jonaserik]

With footings or walls for greenhouses/patios, it doesn't matter which concrete is used, there are no millimeter-precise measurements that will make or break it, so do as you plan.

 

[Bertil Erik Ohlsson]

With foundations or walls for greenhouses/patios, it doesn't matter which concrete is used; it's not about millimeter measurements that fail one way or the other, so do as you plan.

Thanks, it warmed a happy amateur I note that the frame hasn't moved significantly yet. Maybe a millimeter. I don't know how much gap there is between the different parts of the greenhouse, but it will show. I'll report back when everything is finished

 

[jonaserik]

A greenhouse has no more than a few centimeters at the base on the sides, and if you've measured so that it will fit just inside the edge of the frame, you'll be all set; good luck.