dry clay
2.Testing on effects of Rdc. and Vdc representing clay resistivity and fraction or dry clay resistivity and fraction on water saturation calculated by the model it proves that it is very reasonable for Rdc to be clay resistivity and Vdc to be dry clay fraction, so the model derived from the paper can be used to evaluate shaly sands.
9.So far as the mixing material for building the earthrock fill dam with clay core for Shiquanhe Hydropower Station is concerned, the effect from the variation of the sand content for the filter material on the maximum dry density and the relevant parameters are to be determined within the variation area of the mixing mass ratio of (46~54):(54~46) through this experiment, due to the max, dry density is largely influenced by the mixing ratio of both the lifter material and the clay and the sand content of the filter material, so as to determine the actual filling compactness of the mixing material of the core.

