Discussion of "Mechanics of the Casagrande liquid limit test" 1

The discusser wishes to express his appreciation to the author for shining a more useful light on the theoretical issues related to the conventional Casagrande percussion method, which is used for determining the liquid limit of fine-grained soils worldwide with the exception of a few countries where the fall cone method is preferred. Particularly, the author deserves a compliment for demonstrating theoretically that the results obtained from the Casagrande percussion and fall cone methods represent two different mechanical properties of the soil. This finding is in concurrence with the outcome of research by the discusser and his colleague presented in many