this is all super helpful! I have already set the walls with the heat set stuff but I will do the arch with home brew. thanks for the heads up on the cracking, I wont freak out so bad when I see that happen.
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i guess you didn't have any cracking
Edit:
did you use silica sand or play sand?Last edited by Gulf; 12-05-2018, 05:19 PM.
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Joe, did you use silica sand or play sand? I want the joints pretty tight. I just looked at your build and its really nice! i guess you didn't have any cracking?
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+1 on Russell's answer. I would just go with the homebrew and skip the heat set.
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Thanks for the information! I remember stumbling upon your build awhile back. Man, that is sharp! I love the little details like the engraved sun in the top of the dome. love the copper.
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it is heat set! is the concern that they float or move after the arch support is removed? will the back fill mortar hold enough until it is heat cured?
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You can back fill with what we call "Home Brew" 3 sand, 1 lime, 1 portland, 1 fire clay. This can also be used to do the entire dome if you wish. Confirm the refractory mortar is air set not heat set before you proceed..
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dome mortar
So, I have some pre-mixed refractory mortar. But the joints cant exceed 1/8th inch(3mm). my plan was to set the dome brick with this stuff then fill the back of the dome, where the gap is more like 1/2 inch, with type S and Fireclay mix in a grout bag.
Does anyone see a problem with that? I saw that Stonylake might have done this but it doesnt look like they are active on the site.Tags: None
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