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  #61  
Old 09-10-2012, 01:45 AM
Apprentice
 
Join Date: Oct 2011
Location: Bungay, Suffolk, UK
Posts: 151
Default Re: Under way in Socal

if your sand is too fine in grain, it'll do the same too as the more grains=more surface area=more water=more shrinkage upon drying.

its not just making mud pies you know!
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  #62  
Old 09-10-2012, 02:20 AM
brickie in oz's Avatar
Il Pizzaiolo
 
Join Date: Mar 2009
Location: Whittlesea
Posts: 3,455
Default Re: Under way in Socal

Quote:
Originally Posted by Bookemdanno View Post
if your sand is too fine in grain, it'll do the same too as the more grains=more surface area=more water=more shrinkage upon drying.

its not just making mud pies you know!
Sand only shrinks because of the clay content drying.
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  #63  
Old 09-18-2012, 12:21 PM
Laborer
 
Join Date: Dec 2009
Location: Carlsbad
Posts: 57
Default Re: Under way in Socal

Well I can rest easy on my mortar issues..


I laid up the entry arch sleepers and, after all the threads I have looked at, didn't account for the curvature of the dome so it looked like hell. It took me a decent amount of force with a cold chisel to pop them loose and scrape the mortar off...it was only a couple days old too..

I think the new sand helped too. It's a screened plaster sand so the aggregates are no so large as to interfere with a tight joint but the different size particles undoubtedly are a benefit for shrinkage.

I have now been humbled by my WFO project at the dome/arch connection. A lot of head scratching, compound brick cuts and TIME. Truth be told, I still don't think it looks right but I need to go a little further to see if my transition is going to work. I'll post a couple pics later!

Thanks again!
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  #64  
Old 09-18-2012, 01:20 PM
UtahBeehiver's Avatar
Il Pizzaiolo
 
Join Date: May 2012
Location: Salt Lake City, Utah
Posts: 1,564
Default Re: Under way in Socal

Cnicholson,

I think we all have been there done that at one time or another. I would focus in the inside tightness and not worry so much about areas being covered by insulation or an enclosure. Be patient and take your time, I knock bricks out several times the next day if it did not look good inside, yeah and sometimes outside.
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  #65  
Old 10-02-2012, 05:23 PM
Laborer
 
Join Date: Dec 2009
Location: Carlsbad
Posts: 57
Default Re: Under way in Socal

Ok...I'm back at it.. a bit crazy these past few weeks!! I really should have paid more attention in geometry class, the dome/arch intersection is indeed the hardest part thus far!!

I cut a reveal in my arch so the door will fit inside the inner arch bricks and I am planning to completely isolate the dome/inner arch from the outer arch/chimney. My plan is to leave about a 1/4"-3/8" gap between the two arches and floor, route a channel in the inner arch brick and use ceramic rope (THANKS RUSSELL!!) a more or less a gasket between the two. On the floor I think I'm going to fill it w/ vermicrete except for the last 1/2" of height and let that fill in with ash.

I have to admit I haven't been as careful as I would have liked as I have a deadline of Nov 3 to be firing up some pizzas...

That being said I noticed I wasn't so careful getting off some mortar from a session, has anyone ever tried cleaning thier dome w/ muriatic acid? If so any issues with it? I've used it to clean stucco off windows before but I'm a bit worried about using it around a food apparatus...Thanks again everyone!!!
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  #66  
Old 10-28-2012, 04:53 PM
Serf
 
Join Date: Oct 2012
Location: Valley Center, CA
Posts: 2
Default Re: Under way in Socal

I am digging the split look! Any update for end of Oct? Week away from your deadline.

Matt
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  #67  
Old 10-29-2012, 04:27 PM
Laborer
 
Join Date: Dec 2009
Location: Carlsbad
Posts: 57
Default Re: Under way in Socal

Hey There All WFO'ers!

As Matt (thanks for the props on the splits! I think the dome looks WAY cool w/ spilts) pointed out I'm fast approaching my deadline and, well, she may not be pretty but she seems to be performing well. I'm in the curing stage and I'm going to be putting an enclosure around it so I think I may have taken Russell's advice a little too much to heart about not worrying about the things that will be covered...

Bottom line is I got into a hurry and it didn't turn out as near as clean as I would have liked, or as clean as a lot of your out there (Russell's and John's come to mind) but I was able to incorporate some stuff.

I was able to get my heat break installed (not totally isolated as I would have liked) and pack the ceramic rope (ONCE AGAIN THANKS RUSSELL!) in the gaps and it seems to be working like a champ. I used splits, cut in half lengthwise, to lay up the chimney and it draws perfect. My cuts weren't that clean and I got sloppy with the grinder but all of that is pretty much going to be enclosed so I'm not to bummed.

I will post up some more pics next week as hopefully I will have a least a little bit of lipstick on her for the party. Thanks again for everyone's input and support...WFO Forever...

-Chris
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Under way in Socal-img_0390.jpg   Under way in Socal-img_0391.jpg   Under way in Socal-img_0399.jpg   Under way in Socal-img_0407.jpg   Under way in Socal-img_0413.jpg  

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  #68  
Old 10-30-2012, 05:12 AM
Laurentius's Avatar
Master Builder
 
Join Date: Nov 2010
Location: Japan
Posts: 870
Default Re: Under way in Socal

Damn Chris,

How did you do that? Your bricks seems to be floating. Kind of cool, scary cool.
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  #69  
Old 10-30-2012, 06:40 AM
UtahBeehiver's Avatar
Il Pizzaiolo
 
Join Date: May 2012
Location: Salt Lake City, Utah
Posts: 1,564
Default Re: Under way in Socal

Chris,

Good luck with the curing and the upcoming party. Do take you time with the cure though and don't rush it.
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  #70  
Old 10-30-2012, 10:28 AM
Laborer
 
Join Date: Dec 2009
Location: Carlsbad
Posts: 57
Default Re: Under way in Socal

Thanks for the wishes of luck Russell..I think I am going to need it. I started curing 5 days ago.. I tried to keep my temps as steady as I could and so far this is what I have gotten:

Day 1- 6-7 hours at 200 degreeish at top of dome (TOD)..about 160-170 mid 1/3 and the lower 2-3 chains of bricks were about 130ish (keep in mind they are splits)

Day 2- 7-8 hours at 250ish TOD...about 190ish lower 1/3 and stayed at about 130-140 lower.

Day 3- 7-8 hours at 325-350 TOD...225ish lower 1/3 and the bottom bricks got up to 190.

The weird (to me anyways) thing is about halfway through the 2nd day you could smell the moisture coming out of the dome. The third day, about an hour in, you could smell it. My dome sat for about 2 weeks in pretty dry conditions (72-77 degree SoCal weather) before I started.

My next curing fires I'm planning are today, tomorrow and Thursday and at the following temps:

Day 4- 7-8 hours at 400 TOD..
Day 5- 7-8 hours at 500 TOD
Day 6- ?????...see what happens

My theory is that the moisture is not only migrating to the outside of the dome but also gravity is taking it down to the lower bricks and that's why I got a spike in the lower brick temps on day 3.

I plan on spending Friday doing a few practice pies (kids gotta eat right?), so as you can see I will need some luck to pull this whole thing off!! FYI..there is a woodfired pizza joint down the street that I am going to buy my dough from for my first run. Maybe the sauce too but it seemed a bit pricey for tomato sauce- anyone have any recommendations on a good recipe?

Laurentius- What part of the bricks seem to float? I'm no magician, that's for sure but the floor bricks are double layer of splits. There is one inside the dome and the dome rests on the other. The chimney simply spans the arches, minus a small thermal break between them.
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