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drying temperature for atterberg limits determination of montmorilloni

drying temperature for atterberg limits determination of montmorilloni

drying temperature for atterberg limits determination of montmorilloni

(OP)
Hi! If my clay is basically montmorillonite or illite clay, can I still use the standard 105 oC drying temperature for atterberg limits determination? Wouldn't this temeparature be too high such that montmorillonite/illite structure already breakdown?

RE: drying temperature for atterberg limits determination of montmorilloni

For this clay and the because of the sensitivity of the test, I would dry in a dessicator, not an oven.

RE: drying temperature for atterberg limits determination of montmorilloni

I apologise that I don't have the book in front of me, but check out, if you can find it, Zeevaert's book on "Foundations on Difficult Soils".  As he deals with Mexico City clay, I vaguely remember that he had some comments on this particular aspect.  I don't think that illite would be a problem; montmorillonite and bentonite might be due to the driving off of "attached" water.

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