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  #21  
Old 07-07-2012, 07:48 PM
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Default Re: Pompeii Nate's 42" Oven Build

Hi Nate,

You have been busy. Nice mod on wood storage. Framing looks good for hearth pour. Yeah, it has been hot down here too. Finally crap out this afternoon and took a siesta. Just came back in from mortaring a couple key tie-ins to the arch. If you can, IMHO, I would cut back the durarock (where it is a 1/2" from the edge) so the cell of the CMU is exposed, like you did in on the other sides, then you get a intergrated of the hearth pour into the CMU. Only an inch more would do. But if you don't make sure you vibrate this areas extra good. Looking good.
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  #22  
Old 07-07-2012, 11:00 PM
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Default Re: Pompeii Nate's 42" Oven Build

Hey Russell,

Thanks for the suggestion. I know what you mean and I was trying to leave each cell partially exposed so that it could tie into the slab but maybe I missed one. I will check it. Thanks for the idea.

Nate
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  #23  
Old 07-07-2012, 11:17 PM
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Default Re: Pompeii Nate's 42" Oven Build

Nate,

I was looking at your pictures and noticed the cement board (I think you commented on this point) in some areas extending nearly to the outer edge of the blocks. This will prevent the walls from bonding to the slab, resulting in a potentially weaker structure. I don't claim to be an expert on such things but if this were my build I would cut the cement board back to allow the slab concrete to fill/top off the wall cavities, thus the entire structure will bond together for maximum strength. Otherwise the slab will simply be resting on the cement board, which is resting on the walls...

Just a thought.

gene
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  #24  
Old 07-08-2012, 10:20 PM
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Default Re: Pompeii Nate's 42" Oven Build

Here's my second attempt to get pictures up. Hopefully these will be larger and easier to view than the last attempts. We will see.

I am reposting some pictures that show what I think Russell and Gene are worried about. You both mentioned cutting back the concrete board back so that the concrete will be able to sink down into the cores and integrate the hearth slab into the base. I understand what you are saying and totally agree with you but let me explain a little. The small parts where I have only left a little exposed is where my concrete slab with cross over my openings and there is no cinder block below it. So what is being shown is actually the wood frame underneath the concrete board that will be removed once my slab is poured and cured. Does that make any sense? So the only reason I cut it back a little bit and didn't take it all the way to the edge is because I didn't want the concrete board showing through. I hope that explanation is better. I will post some more pictures right after this.

Thanks for the input.

Nate
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Pompeii Nate's 42" Oven Build-wfo-67.jpg   Pompeii Nate's 42" Oven Build-wfo-68.jpg   Pompeii Nate's 42" Oven Build-wfo-69.jpg   Pompeii Nate's 42" Oven Build-wfo-71.jpg   Pompeii Nate's 42" Oven Build-wfo-74.jpg  

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  #25  
Old 07-08-2012, 10:25 PM
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Default Re: Pompeii Nate's 42" Oven Build

Here are some different angles so you can see the form underneath the spots that I believe are in question. Once I build the slab form around the base there will be about a 1/2" to 1" space to be filled with concrete and will hopefully leave a better (prettier) edge than the concrete board.

I hope this helps.

Nate
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Pompeii Nate's 42" Oven Build-wfo-70.jpg   Pompeii Nate's 42" Oven Build-wfo-73.jpg  
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  #26  
Old 07-08-2012, 11:09 PM
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Default Re: Pompeii Nate's 42" Oven Build

OK Nate...I get it now. I think I misunderstood the original pictures . I really like that geometry...

gene
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  #27  
Old 07-09-2012, 07:31 AM
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Default Re: Pompeii Nate's 42" Oven Build

Hi Nate,

Me too, I see what you are doing. Looks like you are taking care of business. BTW, nice angle cuts on your wood box........diamond circular saw blade did the trick.
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  #28  
Old 07-09-2012, 11:23 PM
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Default Re: Pompeii Nate's 42" Oven Build

Gene and Russell

Thanks for the concerns and the compliments. It lets me know people are looking out for me. I am glad the geometry looks good still and we will see if it continues.

As far as the angles go, that diamond blade cut through the cinder blocks like a hot knife through butter. I was very pleased with how well that worked. I would recommend it to anyone...as well as a dusk mask, ear protection and safety glasses.

Thanks again for keeping an eye on me guys. It truly is appreciated!

Nate
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  #29  
Old 07-10-2012, 08:32 PM
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Default Re: Pompeii Nate's 42" Oven Build

My brothers-in-law helped me last night frame up my hearth slab form to be ready for a slab pour this Friday. We got the idea of using actual 2x4s (not today's 2x4) to get our forms exactly 4" above the brick. It worked great and was so much easier than what I had started trying to do. It was a good idea. Here are three pictures of the process.

And I have officially sacrificed/offered up my first piece of equipment when a drill bit came off the drill and fell down into a small hole in my brick base. Forget it man, it's just gone! Hopefully that will be sufficient for the whole project.

Nate
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Pompeii Nate's 42" Oven Build-wfo-75-1.jpg   Pompeii Nate's 42" Oven Build-wfo-75-2.jpg   Pompeii Nate's 42" Oven Build-wfo-75-3.jpg  
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  #30  
Old 07-10-2012, 08:46 PM
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Default Re: Pompeii Nate's 42" Oven Build

Nate,

This looks familar, well on your way. You might want to consider some bracing mid point each side. A scrap 2x4 will do, better than a blow out during the pour, cheap insurance. Keep on truckin..........
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