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Mixing Cob in Bulk - What Methods Have you Seen?  RSS feed

 
Scott Billups
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Hello,

I have a big project coming-up and I need to make a lot of cob, easily. What methods have we seen to make cob in bulk?

I know the ‘primitive’ / ‘tarp-method’ / ‘manpower only’ method. That works, and I’m glad to know it. It’s especially handy for community-building.

I have to make an adobe floor: 1,100-sq-ft x 6-inches deep. I’ll need an army of people doing the cob-dance to get that done before Winter sets-in.

The best method I’ve seen for mixing cob in bulk (so far) is using a Bobcat:


The second-best method I found is with a backhoe and a small skip:


I’ve used a Mason Mixer in the past too, and that worked fine for medium-sized batches. It’ll still be a lot of hard lifting work to make my floor.

What other methods have fellow cob-makers tried / discovered?

Thanks all!



-Scott
 
R Scott
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Friend used a LARGE mortar mixer, a couple years at a time. 
 
J.D. Ray
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Something like this...
 
J.D. Ray
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There seems to be more than one thread on this today, BTW...

https://permies.com/t/22593/Mechanical-Mixer-Cob
 
Scott Billups
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Thanks J.D.

I had seen the 'mechanical mixing' thread and had posted my experience with a Mason mixed (similar to your mortar mixer).

The reason I asked my version of the question had to do with scale. A mortar or mason mixer is certainly an upgrade from the tarp-method. It still requires lifting buckets, wheel-barrows, etc. (human power). The methods in the videos I link are even larger-scale mixing, and don't require any human-power, suitable for "an entire 1,100sqft floor in a day".

I'll run some math and see if a mortar or mason mixer is big enough for my needs.

Thanks.

 
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