Question

The degree of disturbance of undisturbed sample of clay due to remoulding is expressed by______

(a) activity of clay

(b) sensitivity

(c) thixotropy

(d) density index

I had been asked this question in final exam.

I'm obligated to ask this question of Sensitivity and Thixotropy of Clays topic in portion Index Properties Determination of Geotechnical Engineering I

Answer 1

Right answer is (b) sensitivity

To explain: The activity of clay is related with the plasticity and the quantity of clay-size particles. Thixotropy is the phenomenon of ‘strength loss – strength gain’. The density index is used to express the relative compactness.