Consolidation Parameters from CU Test
Consolidation Parameters from CU Test
(OP)
I have small diameter (1.9 inch) undisturbed samples of clay that are two small for consolidometer machine. How can I get consolidation parameters from CU triaxial test or CD test?





RE: Consolidation Parameters from CU Test
You really can't - the word 'disturbed' says it all. You need undisturbed samples for performing consol tests.
You can use the water outflow measurements with time to calculate the soils' consolidation properties. But you need good samples first -
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: Consolidation Parameters from CU Test
I think Daniel refers to "undisturbed" samples. There are standard formulae you can use when you run either of the two triaxial tests. Look up in any soil mechanics textbook.
Regards
RE: Consolidation Parameters from CU Test
Sorry, DanielP.
You will have to get a special oedometer set-up. It's set up for a 1.95 inch diameter sample. (Measure yours to see their actual diameter.) I know they exist; I purchased one about 5 or 6 years ago. (Just one. Don't use it often...)
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: Consolidation Parameters from CU Test
RE: Consolidation Parameters from CU Test
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: Consolidation Parameters from CU Test