Fines classification based on sensitivity to pore-fluid chemistry
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Abstract
The 75-μm particle size is used to discriminate between fine and coarse grains. Further analysis of fine grains is typically based on the plasticity chart. Whereas pore-fluid-chemistry-dependent soil response is a salient and distinguishing characteristic of fine grains, pore-fluid chemistry is not addressed in current classification systems. Liquid limits obtained with electrically contrasting pore fluids (deionized water, 2-M NaCl brine, and kerosene) are combined to define the soil “electrical sensitivity.” Liquid limit and electrical sensitivity can be effectively used to classify fine grains according to their fluid-soil response into no-, low-, intermediate-, or high-plasticity fine grains of low, intermediate, or high electrical sensitivity. The proposed methodology benefits from the accumulated experience with liquid limit in the field and addresses the needs of a broader range of geotechnical engineering problems.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Fines classification based on sensitivity to pore-fluid chemistry |
| Series title | Journal of Geotechnical and Geoenvironmental Engineering |
| DOI | 10.1061/(ASCE)GT.1943-5606.0001420 |
| Volume | 142 |
| Issue | 4 |
| Year Published | 2016 |
| Language | English |
| Publisher | ASCE |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | Article 06015018; 8 p. |
| First page | 1 |
| Last page | 8 |
| Google Analytic Metrics | Metrics page |