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Soil behaviour

  1. Sep 5, 2009 #1
    I need clarification on some terms and their brief relationship.
    1.High Plasticity soil
    2.Low Plasticity soil
    Please define 1 and 2.

    I know that when plasticity of a soil increases, its dilatancy decreases.

    3.Does this means that "soil with high plasticity" is more viscous and therefore its viscosity hardly increase anymore?"

    Also, soil with high plasticity has higher dry strength, toughness and liquid limit.
    4.What exactly is dry strength of soil?
    5.How does the term toughness apply to soil?
    6.Why does soil with high plasticity has higher liquid limit? As I know that when liquid limit(LL) >25, the soil is too dry and if LL <25, the soil contains too much moisture. Does it mean that soil with high plasticity has very high viscosity and therefore the gap created in the liquid limit device could hardly close?

    Excuse me for the long question, hope to get some help here ;P
  2. jcsd
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