A series of one-dimensional (1D) compression tests of kaolin was performed to evaluate combinedeffects of wetting, ageing, viscous property and strain-induced damaging on the stress-strain behaviour.Non-standard constant-rate-of-strain (CRS) 1D compression tests with and without wetting at sustained loadat intermediate stages were performed on specimens of kaolin that were initially either air-dried or partly saturatedor fully saturated with and without cement-mixing. The influencing factors evaluated are the saturationdegree, the period for the process of wetting and curing and the stress level at which wetting/curing was made.The test results showed that, controlled by these factors, the effects of wetting, ageing, viscous property andstrain-induced damaging are significant while they are coupled with each other. These behaviours were successfullysimulated by a non-linear three-component rheology model taking into account these factors.
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