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  #21  
Old 09-15-2013, 02:21 AM
Il Pizzaiolo
 
Join Date: Jan 2012
Location: Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Hi Dan

I came back to it and looked at photo with IT and your arch seems to far forward. The IT at the right angle needs to meet the back of the top of the arch. The angle may be misleading in the photo but it does not appear as though it will meet.

Does anyone else think that.

If it doesn't you will end up out of round. I think the guys here call it teardrop.
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  #22  
Old 09-15-2013, 02:07 PM
Serf
 
Join Date: Jun 2012
Location: Melbourne; Australia
Posts: 17
Default Re: 40" Corner oven in Manor Lakes - West Melbourne

So regarding the arch height, it is exactly on the 63% recomendation so I don't want to change that but I can modify the pillars supporting it? The attached image (showing off my microsoft paint prowess now....or not in this case) shows on the left how I think you are saying it should be and on the right is how I was planning it to be. My only reason for the right side version is so the arch has something positive to lock into, in my mind the one on the left can either slide down in the face of the pillar during fit, or with the weight of the chimney (not sure how this is going up yet) start to push the pillars away from themselves putting the mortar joint into a shear load. More that happy to stand corrected but the engineer in me can see one way structurally more sound than the other.

Regarding the arch placement being to far forward, the brick on the formwork are not the final bricks, they were just some taper brick off cuts to get an idea of how the arch will look but I take the point on board and will make sure the dome remains in constant contact through out for the final fit.

And on the IT, good point, I see what you mean regarding the centre point and will have a look at mine next time the covers are off and have a look at it.

Once again, thanks all for the input.

Dan
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  #23  
Old 09-15-2013, 03:39 PM
Il Pizzaiolo
 
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Location: Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Dan

In the left picture I would put the split lower. This will allow you too do what you are wanting to do checking out the brick.

If you cut the brick as in the right picture then that will be perfect meeting your retirement to tie it in.
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Last edited by oasiscdm; 09-15-2013 at 03:56 PM.
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  #24  
Old 09-16-2013, 08:04 PM
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Join Date: Jun 2012
Location: Melbourne; Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

So I've been doing a bit of reading about laying wet bricks and the adverse affects to bond strength. Unfortunately this is after I soaked the bricks til the bubbles stopped (about 90secs) and layed the first course. I tried with them dry but to an amateur it was damn near impossible to get the brick to stick to each other as the mortar dried too quickly. And wet mortar was just a pain to use.

So, how bad is it to wet the brick before laying?? I would imagine there are tons of ovens around that were made using soaked bricks. I have found that it can reduce the bond strength to around 65%.

Can you dunk the brick for say 20 secs then lay it?
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  #25  
Old 09-16-2013, 09:16 PM
Il Pizzaiolo
 
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Dan

Found the same thing. Did the same thing. Then

I dunked count to 3 let sit a bit, spray the bricks on dome
Butter bricks and lay.
I used a wettish mortar stiff peeked cream consistency.

As I got to the top I used angle grinder to notch bricks Gianni idea, haven't used any support and bricks held fine.
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  #26  
Old 09-17-2013, 12:13 AM
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Il Pizzaiolo
 
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Quote:
Originally Posted by vanoontour View Post
So regarding the arch height, it is exactly on the 63% recomendation so I don't want to change that
So take some off the top corners of the arch profile and leave the top of the arch at 63%......
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  #27  
Old 09-17-2013, 03:58 AM
Il Pizzaiolo
 
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Hey Allan

That works too.
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  #28  
Old 10-05-2013, 07:42 PM
Serf
 
Join Date: Jun 2012
Location: Melbourne; Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Hey All, A bit more work done this weekend. Think I finally have the arch figured out. Mortared the pillars in place and added another chain/course.

I will put another chain/course down and then put the arch up.

I modified my IT so it is now in the center of the brick, thanks for the heads up.

Cheers, Dan
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40" Corner oven in Manor Lakes - West Melbourne-img_8382.jpg   40" Corner oven in Manor Lakes - West Melbourne-img_8381.jpg   40" Corner oven in Manor Lakes - West Melbourne-img_8378.jpg  

Last edited by vanoontour; 10-05-2013 at 07:45 PM. Reason: Photo added
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  #29  
Old 10-05-2013, 11:52 PM
Il Pizzaiolo
 
Join Date: Jan 2012
Location: Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

HI Dan

Looking good Dan

I got some of my last course done today will post photos later tonight. Then the keystone after some art work. Then get stuck into the front vent.

Just be careful you remain on bond with the bricks I noticed some getting a little close. Have seen a few pictures on Forno where cracks will follow non bonded brickwork.

Nice work on the IT it looks spot on now.
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  #30  
Old 10-12-2013, 02:26 PM
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Location: Melbourne; Australia
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Default Re: 40" Corner oven in Manor Lakes - West Melbourne

Got another course of bricks done yesterday. Hopefully look at the arch this coming week.

How far do the joins have to be from each other to remain 'on bond'?? Some of mine are about 10-12mm?

Cheers, Dan
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