cast concrete countertop

[magnus82]

As mentioned, I want to cast 2 concrete countertops for the kitchen but have some considerations.

I need one countertop for the kitchen island and it has to be 120cm wide, the formwork panels are only 120 wide, so there's not much space to attach a frame. The same problem arises with the other one which has to be 380cm long, as the panel is only 250 long. It won't be good with a joint in the middle of the countertop, a lot of work to polish away.

How do I resolve this, help me...!

 

[OHMSWEETOHM]

Hmm. 3.80, that's heavy. Can't you fit in a joint?
You can attach the frame on the outside instead, perhaps.

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[Matti_75]

I agree with the previous writer, try to make a joint as the board will otherwise weigh 220kg and may break in the middle during installation.

 

[magnus82]

I don't think it will turn out well with a joint on that board. Ideally, it should be 4040 long, but make a joint so it becomes 3500 instead. An additional joint won't look good.
It also needs to be cut out for a double sink and a large cooktop, so it won't be a solid 3500 long.

 

[PCLarsson]

Cast in place?

 

[magnus82]

How have you planned it then? With form, concrete mixer, etc.
It's supposed to be kitchen countertops, so standing and messing with those in the new kitchen feels a bit risky.

 

[collo]

There are larger records to buy.
Maybe Sigvard-Spångberg has them? Check http://www.sigvard-spangberg.se/vara-skivor.aspx

 

[Mikael C]

I will also have a concrete countertop, I want to try different colors, I have heard that you can get it in black or white if you want.

 

[magnus82]

Have you already cast them, or how do you plan to do it?
What will be the dimensions of your slabs?

 

[magnus82]

one can dye with a variety of different colors if desired, there are different pigments that are applied to the concrete after curing, allowing them to penetrate the concrete and color it.

 

[Mikael C]

No, I haven't cast yet. Thanks for the coloring tip. dimensions approx 60 deep 170 length. want it L-shaped.......