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Author Topic: Curing problem!?  (Read 426 times)

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Offline robvst1987

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Curing problem!?
« on: April 27, 2018, 02:30:33 AM »
Hi guys,

I'm curing my wfo oven for about 5 days now (following the forno bravo schedule) , yesterday i was looking at the outside of the dome and saw 2 cracks  :(

Is this something to be worried about? I dind't sleep of it last night  :( :(

Is it possible to fill up the cracks with very wet cement and start all over the curing? This weekend i wanted to fill up the outside with the argex/cement mixture.. now i am affraid the dome will collapse...

Grtz

Rob


Offline robvst1987

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Re: Curing problem!?
« Reply #1 on: April 27, 2018, 02:32:26 AM »
here some pictures

Offline Tscarborough

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Re: Curing problem!?
« Reply #2 on: April 27, 2018, 07:31:33 AM »
No worries, they will open and close as the temp changes.  The only issue is water penetration, but repairing them with cement will not work.

Offline vtsteve

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Re: Curing problem!?
« Reply #3 on: April 27, 2018, 10:53:36 AM »
I totally agree, it's pretty normal in fact, but I'm just curious: what ingredients, in what proportion, did you use for your mortar mix?
In grams we trust.
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Offline Elkaybay

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Re: Curing problem!?
« Reply #4 on: April 27, 2018, 02:08:34 PM »
Hi Rob,

Is your dome still non-insulated?
2 years ago I assembled an oven imported from Italy, and the recommendation from the manufacturer was to start curing the oven ONLY after insulating it. The dome was insulated by a thick 15-20cm layer of cement-vermiculite-leca-water mix (a bit like in the Acunto oven construction video). The dome + insulating layer's temperature was slowly raised from 20C to 300-400C over 5 consecutive days.
Curing the 'naked' dome might have made it warm-up a bit too fast in your case?

I wouldn't worry about the cracks, especially if the insulation you'll add around the dome will make it airtight. It'll definitely not collapse.


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