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Comparison between sand and clay clogging mechanisms of pervious concrete pavement | Scientific Reports
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![Figure 3. Sand/shale mixture model used to derive the noncompacted porosity of the formation. The porosities pSd and pSh are the noncompacted porosity corresponding to a clean sand and a perfect shale, Figure 3. Sand/shale mixture model used to derive the noncompacted porosity of the formation. The porosities pSd and pSh are the noncompacted porosity corresponding to a clean sand and a perfect shale,](http://www-odp.tamu.edu/publications/161_SR/chap_10/images/74_f03.jpg)
Figure 3. Sand/shale mixture model used to derive the noncompacted porosity of the formation. The porosities pSd and pSh are the noncompacted porosity corresponding to a clean sand and a perfect shale,
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