Abstract
Results of resonant column tests were used to determine the effects of overconsolidation ratio (OCR) and of aging on the normalized rate of secondary increase NG of low‐amplitude shear modulus G0 of a remolded kaolinite clay. The value of NG decreased approximately linearly with the logarithm of OCR and with the logarithm of duration of aging of the clay. The similarity of behavior provided a basis for establishing an equivalency between age‐and‐stress‐induced equivalent overconsolidation for the clay in question. It was concluded that up to a certain limiting duration of aging the age‐induced OCR increases linearly with elapsed time, whereas the effect starts diminishing for longer durations of aging. It is suggested that the results of similar studies on natural clay soils be used for predicting the long‐term behavior of clays from the results of short‐duration tests.
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