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  1. Mekkatronix

    Pocket Penetrometer, Torvane, and soil internal friction angle

    Kevin9679, that is indeed unsettling that the adapter would introduce such changes.
  2. Mekkatronix

    Pocket Penetrometer, Torvane, and soil internal friction angle

    morecoffeeplz, that is precisely what I asked for in my original post. Can you explain how this is done with any useful results?
  3. Mekkatronix

    Pocket Penetrometer, Torvane, and soil internal friction angle

    MTNClimber, thanks for the rapid reply. It looks like one or two shops make all of the PPs on the market and the various brands just apply their labels (much like the original VHS recorders back in the day). This explains why all of the vendors advertise the same incorrect information. Many...
  4. Mekkatronix

    Pocket Penetrometer, Torvane, and soil internal friction angle

    Thanks for all of the replies. I agree with the consensus that these instruments provide a rough estimate of the unconfined compressive strength/undrained shear strength and is at best a strength index for field guidance, etc and not design. The manufacturer's product sheets all say that these...
  5. Mekkatronix

    Pocket Penetrometer, Torvane, and soil internal friction angle

    Realizing the many and significant limitations in using the Pocket Penetrometer (PP) and the handy Torvane device, all of the PP literature provided by the manufacturers states that these two devices can be used "... for rapid estimation of the degree of internal friction of soil." Can anyone...

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