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The Darling Dome 09-14-2011 03:16 PM

mortar mix..
I built my oven using 1 portland cement, 5 lome (sand with clay) and 1 lime. I also used second hand red bricks from a fireplace/chimney. It has been over a week and the dome still smells of mortar. Was this mix and seconds bricks OK?

Tscarborough 09-14-2011 05:35 PM

Re: mortar mix..
Not unless that is all you had available.

The Darling Dome 09-15-2011 12:24 AM

Re: mortar mix..
This mix was recommended by Jussell Jeavons (he wrote a book on ovens) and I assumed it would all be good. Russel recommended brick sand, however all I could get was lome which is a reddish type sand that contains clay which should help to stop too much cracking. I was more worried about the portland cement after reading about the need to use refractionary.

david s 09-15-2011 02:37 AM

Re: mortar mix..
Your mix is essentially the same as the home brew lots of people have used. The loam you used probably contains a fair amount of bacteria which may be contributing to the smell. This will simply burn away once you start firing. I wouldn't be worried at all by a smelly mortar.

The Darling Dome 09-15-2011 06:50 PM

Re: mortar mix..
Sounds good then. Thank you very much for the reply.

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