posted 9 hours ago
Combining a recent you tube video discussing vibration compaction talk about it staying compacted long term with how our first cistern growing up was built.
The compaction video basically said ground compacted properly under buildings was basically the same as piles. It didn't become uncompacted over time even with ground moisture. Now I am sure freeze thaw would break it up but what about just water?
Top half of the first cistern in my life was a monolithic pour of the lid and about 4 feet of walls as the top half. The lower half was a thin layer of concrete plastered over the dirt. Bottom half water held fine and worked but it was forever cracking at the joint between the 2 layers. My parents never did get it sealed for any length of time so we only used the bottom half for the most part.
But what if the thin concrete went clear to the lid so it was a consistent material and the dirt behind it was vibrated or rammed earth thus heavily compacted? Maybe cob with fiber glass or basalt fibers instead of straw?
Country oriented nerd with primary interests in alternate energy in particular solar. Dabble in gardening, trees, cob, soil building and a host of others.
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