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This article in SSSAJ

  1. Vol. 44 No. 5, p. 1124-1126
    Received: Jan 2, 1980
    Accepted: July 24, 1980

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Soil Consistence: Effect of Particle Size1

  1. Iniobong J. Ibanga,
  2. Orville W. Bidwell,
  3. William L. Powers,
  4. Arlin M. Feyerherm and
  5. Wayne W. Williams2



Briquets composed of sand (0.05–2.00 mm) silt (0.002–0.05 mm), and clay (<0.002 mm) mixtures were hardest when dominantly clay and/or sand and softest or least hard when dominantly silt. Where soils had equal amounts of clay, those with highest amounts of sand, with one exception, were the hardest. Low surface area of sand requires much less clay “mortar” to cement the fewer sand grains per given volume than do the more numerous, smaller silt particles.

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