cast in place with home-brew ??

[Johnny the oven man]

Re: cast in place with home-brew ??

Castable refractory is to soft for a floor unless it has been fired, you can scratch the floor easily. Fired castable is still not the ultimate. Fired bricks is the way to go. The homebrew is a poormans sustitute and whilst it will "work ", it is not recommended. Heck, Cal.Sil board would work, but who the feck would use it.

[david s]

Re: cast in place with home-brew ??

Castable refractory is to soft for a floor unless it has been fired, you can scratch the floor easily. Fired castable is still not the ultimate. Fired bricks is the way to go. The homebrew is a poormans sustitute and whilst it will "work ", it is not recommended. Heck, Cal.Sil board would work, but who the feck would use it.

Castable refractory (unfired) is softer than firebrick, but harder than soapstone, which is often used for floors.
Cal. Sil might be refractory enough, but has no density to store any heat and is way too soft.

[johnb]

Re: cast in place with home-brew ??

Hi,
I built my oven 2 years ago using a concrete mix made from Blue metal (crusher dust), Ciment Fondu, water and Antec melt extract fibers. It works out a lot cheaper than castable and after 14 firings it has no cracks. The recipe is on the Kerneos Ciment Fondu site Ciment Fondu?
Regards John

[david s]

Re: cast in place with home-brew ??

Hi Johnb,
can you post some pictures of your oven?
Also, do you own a sloop?
Dave

[johnb]

Re: cast in place with home-brew ??

Dave, Sorry I don't own a sloop. Don't like water and probably too expensive. I have attached 3 photos to give you an idea.

[david s]

Re: cast in place with home-brew ??

Nice work, I particularly like the job you've done on the cast arch at the front. I wish we could fast forward ten years to see how it's holding up.
I suspect it will out last you.
Excuse the teasing re sloop john B

[johnb]

Re: cast in place with home-brew ??

The arch is made out of the same material but with a higher fiber content and a slightly wetter mix so it flows into the corners better.

[david s]

Re: cast in place with home-brew ??

nice casting

[robertjusher]

Re: cast in place with home-brew ??

Well, I have bitten the bullet and started. After much debat, research and questions here I have decided to do a full FB build....
Stay tuned