20 The soils report for your newest project indicates the si

(20) The soils report for your newest project indicates the site has 15% illite in the upper soil layer and suggests excavation of this surface soil. Your supervisor does not feel that excavation is necessary. as a previous project with similar construction had over 25% kaolinite on the site, no excavation, and is functioning fine. Do you agree with your supervisor\'s assessment? (remember to justity your answer) 7,

Solution

Yes. I do. Because, Kaolinite is an expanding type clay mineral. And illite is non expanding type clay mineral. If 25% of the kaolinite is functioning fine, illite should be functioning fine and that too it is only 15% of the the thickness. So it can not cause any problem and I fully support my supervisior\'s decision.