Soil Mechanics and Foundation
Which one of the following clays behaves like a dense sand ?

under-consolidated clay
over-consolidated clay with a low over-consolidation ratio
over-consolidated ciay with a high over-consolidation ratio
normally consolidated clay

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Soil Mechanics and Foundation
The admixture of coarser particles like sand or silt to clay causes

decrease in both liquid limit and plasticity index
increase in both liquid limit and plasticity index
decrease in liquid limit and no change in plasticity index
decrease in liquid limit and increase in plasticity index

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