Viscous Property of Ciay

摘要

Viscous property of saturated, wet, air-dried and oven-dried clay was evaluated by performing a series of one dimensional compression tests including primary loading, creep, global unloading and reloading tests. In the tests, axial strain rate was changed stepwise many times during monotonic primary loading at a constant strain rate. Test results show that viscous property of clay with different water content under different test condition is similar. In order to evaluate the viscous property of clay, parameter ? was introduced basing on the present test results of clay and author's previous study. ? value of clay with different water content under different test condition varied from 0.034 to 0.064. Test results show that ? value of saturated clay is generally larger than that of dried clay.