- Title
- Reappraisal of linear shrinkage test for plasticity index determination and classification of fine-grained soils
- Creator
- Soltani, Amin; Azimi, Mahdieh; O'Kelly, Brendan
- Date
- 2023
- Type
- Text; Journal article; Review
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/196621
- Identifier
- vital:18736
- Identifier
-
https://doi.org/10.1016/j.clay.2023.106920
- Identifier
- ISSN:0169-1317 (ISSN)
- Abstract
- Among the multitude of alternate plasticity index (PI) estimation proposals, empirical correlations based on the linear shrinkage (LS) test, originally proposed in the 1967 edition of the British BS 1377 standard, seem to be gaining increased attention. This study has two main aims: (i) re-examining LS-based correlations for PI estimation to better understand their true potentials and/or limitations; and (ii) investigating the possibility of employing LS, as a proxy for the standard PI, for fine-grained soil classification. To this end, comprehensive statistical analyses were performed on the largest and most diverse database assembled of its kind, entailing PI:LS measurements for 265 different fine-grained soils [pertaining to the ‘soft’ base percussion-cup liquid limit (LL = 17–134%) and the Australian standard LS = 0.5–32.0%]. It was demonstrated that the LS can generally only provide a rough approximation of the actual PI. At best, only those predictions produced by PI = 1.86 × LS for low-plasticity soils (i.e., LL
- Publisher
- Elsevier Ltd
- Relation
- Applied Clay Science Vol. 238, no. (2023), p.
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- Copyright © 2023 Elsevier B.V.
- Subject
- 37 Earth sciences; 40 Engineering; Linear shrinkage; Liquid limit; Plastic limit; Plasticity index; Soil classification
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