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Data on Consolidation of Fine-Grained Sediments
George V. Chilingarian, Herman H. Rieke, III
In this paper, some of the previous research of the authors and their students on the subject of the consolidation of fine-grained sediments is reviewed, and additional experimental data is presented. An analysis of pressure vs. moisture content curves for these sediments has led to the overall conclusion that upward deviations of the curve from linearity are caused by the squeezing out of non-oriented water first. These deviations occur at pressures corresponding to about 20-25% remaining moisture content for kaolinite, and about 50-70% for montmorillonite, that is, at pressures where the chemistry of the squeezed-out solutions begins to change appreciably. The experimental results also indicate that the salinity of interstitial solutions in shales should be less than that of water i associated sandstones, assuming that water was squeezed from the shale into the sandstone.
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