3 Easy Soil Tests for Making Good Cob - Testing Soil for Cob Building

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[boltholeonabudget]

Brave man to make a video about his shrinkage. My sub soil is red and I can't tell any distinct difference between sand, silt, or clay after a jar test.

[maeveofthelongbows]

So, what is the desired percentages for sand, silt (and please explain what silt is), and clay?

[markburningcandlehamilton]

If there's a higher content of clay, could more sand just be added to fix that and keep the shrinkage to a minimum?

[rafaelellis-rech]

Great info thank for making the videos great to get down to basics and what’s in the soil

[elliemay]

What's not the safest thing to do in a when building with cob what will leak first the wall or fail

[elliemay]

How not to build a cob block wall with dry clumps at medium speed ⚒️🔥⚒️🔥🔥🔥🔥🔥🔥🔥🔥🔥

[gmw]

I guess i couldn't do cob. I have an average of about 5-10 inches of black topsoil and then pure clay down to who knows how deep.

[elliemay]

Not the safest thing to do in Rush building with cob huge dry clumps