oa Civil Engineering = Siviele Ingenieurswese - The use of a modified liquid limit for swell prediction



The existing methods for the identification and classification of expansive soils using the common soil classification parameters appear inadequate. This note proposes the use of a modified liquid limit that has already been successfully applied to predict California bearing ratio (CBR). The relationship between this 'equivalent' liquid limit, CBR swell and percentage clay for a series of synthetic soils is examined and the ensuing swell prediction equation shown to give satisfactory results for some natural soil samples.


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