Bentonite
Bentonite
(OP)
Can someone tell me how to calculate the amount of bentonite required to be mixed with different soils to reduce permeability to a given level? Any help is greatly appreciated.
Scott
Scott
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RE: Bentonite
Why do you ask?
Please see FAQ731-376 for great suggestions on how to make the best use of Eng-Tips Fora. See FAQ158-922 for recommendations regarding the question, "How Do You Evaluate Fill Settlement Beneath Structures?"
RE: Bentonite
One of the tests that was used as a quick indicator, was the plastic limit, if the plastic limit could be reached, i.e. sufficient fines within the blended soil to allow a thread to be rolled, on a glass plate etc..., then it was deemed that sufficient bentonite had been added. The problem was the Contractor had allowed a max amount in his estimate, and he was VERY reluctant to add more than this. In the end the project was put on hold, but I do know at least one University in the UK is undertaking research into bentonite addition to sand and the resultant permeability
RE: Bentonite
Thanks again
Scott