Asked by: Luftolde Parr
asked in category: General Last Updated: 29th May, 2020

How deep do you have to dig to find clay?


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Similarly one may ask, how far down does Clay go?

Seasonal changes affect clay soils - causing them to swell in winter and shrink in summer. That's why there are minimum foundation depths for each type of clay. Strip, trench fill or pad foundations must be cast at a minimum of 750mm in low plasticity clays, 900mm in medium, and 1000mm in the highest risk areas.

Furthermore, how do you process clay from the ground? Processing Clay for Pottery. To use the wet extraction method, start by filling a bucket about 1/3 of the way with soil. Add water and use your hands to break up the soil particles as finely as you can get them. Allow the soil to hydrate for a few minutes, or preferably a few hours.

In respect to this, where can I dig up clay?

Some of the best places to look for clay include:

  • river banks.
  • stream beds.
  • road cuts.
  • naturally exposed earth such as in canyons or gullies.
  • construction sites.

Will water drain through clay?

Clay soil is more dense than sandy or loamy soil, and therefore, is slower to allow rainwater to filter through it. Drainage wells are another common underground solution for compacted soil or hard sub-layers that allows the water somewhere to run after rainfall.

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