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Old 10-12-2006, 12:58 AM
james's Avatar
Brick Oven Merchant
 
Join Date: Mar 2005
Location: Pebble Beach, CA
Posts: 4,648
Default Mortar required to build a 42" dome

Does anyone have the calculation for how much mortar they using building a 42" dome? A builder just asked me.

If you made your own mortar (either recipe), could you total up the weight?

Thanks.
James
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  #2  
Old 10-12-2006, 08:36 AM
Peasant
 
Join Date: Mar 2005
Location: Arroyo Grande - Pismo Beach, California
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For my 42" dome I purchased:
4 5-gallon buckets of sand
2 60-lb bags of cement (not concrete mix)
3 bags of clay

After finishing the dome I have left over:
1 5-gallon bucket of sand
1/2 bag of cement
2+ bags of clay

I really does not take much to build this project. Just buy a little more than you might possibly need so you can pass on the leftovers to someone else!
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Old 10-12-2006, 12:06 PM
maver's Avatar
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Location: Puyallup, WA
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I used the 3 part sand, 1 part fireclay, 1 part lime and 1 part portland recipe and used just under a bag each of the portland and lime (80lb each) and just over a bag of fireclay (60#), call it 80#. I didn't count the sand bags, but I guess you would figure 240# give or take. I used some of the sand and fireclay under the bricks of the hearth.
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Old 10-12-2006, 12:31 PM
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Brick Oven Merchant
 
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Location: Pebble Beach, CA
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Thanks for that,

I am estimating the following from the 3:1:1 recipe:

150lbs of sand
50lbs of Portland
50lbs of Fire clay

That's about 250lb of mortar. How does that sound?

What would our other builders say to that?

James
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