thread261-220564: Non Plastic silt soil

Hello,

I have seen few posts about atterberg limits and non plastic (NP) soils but haven´t see any about when the soil is in "non Liquid" stage. I have seen very few reports that present results of X material as NP (NON plastic) due to the "non liquid" condition and at the same time they present a very low plastic limit (PL)(between 1% and 5%), does this make sense?

I noticed the software they used is called Geosystem and in case the material is "non liquid" it as the option to check an "NV" box, which I am not sure what NV stands for (Not valid????).

Has anyone seen this before?

PLease let me know,

NV = Non Viscous

Thanks Molerat,

Do you by chance have an explanation for that term?

Liquid limit is defined as the boundary between plastic state and viscous state of the soil. Non Viscous is analagous to Non Plastic for the plastic limit test.