How to Convert Loose Clay to Compact Clay

Converting loose clay to compact clay creates a seal that prevents water from draining into the soil. Farmers compact clay to build ponds and manage runoff. Homeowners compact clay to direct rainfall from buildings, prevent erosion, and grade the landscape. There are several ways to convert loose clay into compact clay. The one you choose will depend upon the scale of your project and the availability and quality of clay in your area.

Agricultural tractor
Tilling disk
Sodium bentonite
Farm animals
Fencing
Garden rake
Water
Hand tamp
Lawn roller

Instructions

- 1
  
  Pulverize the area with a tiller before compacting clay.
  
  Pulverize the area to be compacted with a tilling disc. Mix water with the loose clay.
  
  Drive the tractor over the area repeatedly until the surface is hard. To prevent erosion on a steep slope, or to build a pond, add a second, 6-inch layer of loose clay or sodium bentonite and water, and compact the area with the tractor.
- 2
  
  Livestock will "glue" loose clay within a matter of weeks.
  
  Fence livestock such as pigs, sheep or cows in the area to be compacted. The animals' hooves will compact their feces with the loose clay after several weeks and seal the surface. This ancient natural method is known as "glueing."
- 3
  
  A slope of compacted clay will direct water from buildings.
  
  Rake the loose clay to the desired grade and shape to compact a small area. Mix water with the loose clay, and use the hand tamp to compress the mix and create a hard seal. Compact the area with a lawn roller while the clay mix is still damp for a firmer or level surface.

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