The relation between permeability and pore size distribution of compacted clayey 4 slits

Details The relation between permeability and pore size distribution of compacted clayey 4 slits The relation between permeability and pore size distribution of compacted clayey 4 slits

Apr 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978puwl.rept.....g&link_type=abstract

Interim Report Purdue Univ., West Lafayette, IN. Joint Highway Research Project.

Mathematics

Computer Programs, Permeability, Porosity, Soil Science, Clays, Compacting, Highways, Kaolinite, Mathematical Models, Mixtures, Sediments

Scientific paper

The study examines (1) the relation between permeability and pore size distribution, and (2) the influence of varying water content and compaction effort on the soil fabric of compacted fine-grained soils. Three blends of silt and kaolin were compacted at different energy levels and water contents. Falling head tests under back pressure were used to measure permeability. The mercury intrusion technique was used to measure pore size distribution. Freeze drying was used to minimize soil disturbance prior to mercury intrusion. A method of approximating the differential pore size distribution is described which simplifies the interpretation of pore size distributions. The soils tested were found to have a bimodal pore size distribution on a log diameter scale. The permeability generally increased with increasing large pore mode. Empirical predictive equations for permeability based on pore size distribution parameters were determined for each of the soils tested. The pore size parameters used were based on theoretical models which relate permeability to pore size distribution.

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