Hello, we run 3-stage CU tests, and had one that created a very steep failure envelope tangent to the Mohr circles that crossed the Y axis below 0. That would give us a cohesion value that is negative. Is that even possible? Would you just call the cohesion 0 and plot the failure envelope...
I have been doing all the research I can on this topic, and I have gotten mixed results. A traditional nice parabolic curve with at least 4 points to find your OMC and MDD on higher fines content soils is great. Works every time. I understand that soils with low fines content should be run by...
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This is in response to the another thread that mentioned bleeding water while running free draining proctors, and I would like to re-open the discussion.
I manage a soils lab for a Geotechnial firm, and the majority of questions or challenges come from preforming compaction...
