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Kaolinite exhibit the characteristic of ___________

(a) Shrinkage limit

(b) Plasticity

(c) All of the mentioned

(d) None of the mentioned

The question was posed to me during an interview.

This is a very interesting question from Clay Minerals in section Soil Structure and Clay Minerology of Geotechnical Engineering I

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Right answer is (b) Plasticity

Explanation: The platelets in kaolinite carry negative charges which attract thick layers of adsorbed water thereby producing plasticity.

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