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After burning the midnight oil, I managed to finish the dome.
Still require some castable refactory mortar to finish off but working away all week so brickwork should be cured nicely by the time I get back.
I had to modify with grinder the IT tool to fit last few rows of bricks, but used the stick method to support bricks until fitted keystone.
Started oven and entry arches, I was thinking of including a thermal break but an update of Ben,s kit now keys third row brick into oven arch to increase stability of entry. If you look at the last photo you can see I have not mortared the vertical joint of the other rows thought this might provide some thermal resistance, will caulk with high temp sealant.
For your application I'd be using 3:1:1 vermicrete, sand , cement.It will give you a lightweight concrete that's fairly strong, not a bad insulator and easy to work.
For your application I'd be using 3:1:1 vermicrete, sand , cement.It will give you a lightweight concrete that's fairly strong, not a bad insulator and easy to work.
Gudday Anthony
I can't see why not ..... You could upgrade the Portland cement content and add some sand as well. When you think about its not like you are trying to get the best insulation layer ... That's already there.
Just a thought
Regards dave
Gudday Anthony
I can't see why not ..... You could upgrade the Portland cement content and add some sand as well. When you think about its not like you are trying to get the best insulation layer ... That's already there.
Just a thought
Regards dave
Gudday Anthony
Building with a precut kit... I can see the advantages of not having to worry about the arch transition etc etc. It's certainly coming ahead quite well.
Are you still aiming for the "oven pic " you posted earlier with the oven hearth height the same as the surrounding base. That look is certainly smart and clean.
Love your work
Regards dave
Thanks for your kind words Dave,
I was surprised at progress over weekend but I guess all the hard yakka cutting bricks has been done for me.
Yes still planning to finish level, will place cut down face bricks around edge to finish about 30mm below hearth top surface then build up base with perlite concrete to level of bricks (-30mm) and then have some granite tops made to sit flush.
Not sure if perlite concrete will give a solid enough base to secure granite too, any ideas.
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