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Use of Fall-Cone Flow Index for Soil Classification: A New Plasticity Chart

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Vardanega, paul 
Haigh, Stuart 
o'kelly, brendan 

Abstract

Use of the Casagrande (plasticity) chart to classify fine-grained soils using Atterberg’s liquid and plastic limits is ubiquitous in geotechnical engineering. This classification is dependent on the thread-rolling and Casagrande-cup tests which are both more operator dependent than the fall-cone liquid limit test. This paper shows that the slope of the data acquired during the fall-cone liquid limit test, (the fall-cone flow index) can be used to redraw the standard plasticity chart thus allowing classification of fine-grained soils to be achieved solely from fall-cone liquid limit data.

Description

Keywords

laboratory tests, soil classification, standards & codes of practice, statistical analysis

Journal Title

Geotechnique: international journal of soil mechanics

Conference Name

Journal ISSN

0016-8505
1751-7656

Volume Title

Publisher

ICE Publishing

Rights

All rights reserved

Version History

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VersionDateSummary
2024-03-08 15:44:11
Published version added
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2021-02-02 00:31:00
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