Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus

Gitte Lyng Grønbech, Benjaminn Nordahl Nielsen, Lars Bo Ibsen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The connection between the Liquid Limit found using the Casagrande and the Fall Cone Apparatus is tested for the Danish Eocene Clay that has Liquid Limits up to 350% and Plasticity Index up to 300%, which is well outside the normal range of Casagrande’s Plasticity Chart. Based on the high plasticity of the Danish Eocene Clay two new classification categories are introduces to the Plasticity Chart in order to fully describe the clay; super high plasticity Clay (CS) and extremely high plasticity clay (CE), covering the range up to Liquid Limits up to 200% and 350% respectively. A correlation between the Liquid Limit from the Casagrande and the Fall Cone Apparatus is for super high plasticity clay. For extremely high plasticity clay it was found that the Fall Cone method underestimated the Liquid Limit with up to 43 percentage points, making the Fall Cone an unreliable method of finding the Liquid Limit for extremely high plasticity clay.
Original languageEnglish
Title of host publicationSymposium Proceedings : 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering
Number of pages7
Place of PublicationToronto, Ontario
PublisherPan-AM CGS Geotechnical Conference
Publication date2011
Publication statusPublished - 2011
Event2011 Pan-Am CGS Geotechnical Conference - Toronto, Ontario, Canada
Duration: 2 Oct 20116 Oct 2011

Conference

Conference2011 Pan-Am CGS Geotechnical Conference
CountryCanada
CityToronto, Ontario
Period02/10/201106/10/2011

Fingerprint

plastic properties
clays
cones
plastics
liquids
charts
coverings

Bibliographical note

Published on a cd.

Keywords

  • Clay
  • Liquid Limit

Cite this

Grønbech, G. L., Nielsen, B. N., & Ibsen, L. B. (2011). Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus. In Symposium Proceedings: 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering Toronto, Ontario: Pan-AM CGS Geotechnical Conference.
Grønbech, Gitte Lyng ; Nielsen, Benjaminn Nordahl ; Ibsen, Lars Bo. / Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus. Symposium Proceedings: 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering. Toronto, Ontario : Pan-AM CGS Geotechnical Conference, 2011.
@inproceedings{02d2037398da47f9bda74aadacc2bf74,
title = "Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus",
abstract = "The connection between the Liquid Limit found using the Casagrande and the Fall Cone Apparatus is tested for the Danish Eocene Clay that has Liquid Limits up to 350{\%} and Plasticity Index up to 300{\%}, which is well outside the normal range of Casagrande’s Plasticity Chart. Based on the high plasticity of the Danish Eocene Clay two new classification categories are introduces to the Plasticity Chart in order to fully describe the clay; super high plasticity Clay (CS) and extremely high plasticity clay (CE), covering the range up to Liquid Limits up to 200{\%} and 350{\%} respectively. A correlation between the Liquid Limit from the Casagrande and the Fall Cone Apparatus is for super high plasticity clay. For extremely high plasticity clay it was found that the Fall Cone method underestimated the Liquid Limit with up to 43 percentage points, making the Fall Cone an unreliable method of finding the Liquid Limit for extremely high plasticity clay.",
keywords = "Clay, Liquid Limit , Clay, Liquid Limit",
author = "Gr{\o}nbech, {Gitte Lyng} and Nielsen, {Benjaminn Nordahl} and Ibsen, {Lars Bo}",
note = "Published on a cd.",
year = "2011",
language = "English",
booktitle = "Symposium Proceedings",
publisher = "Pan-AM CGS Geotechnical Conference",

}

Grønbech, GL, Nielsen, BN & Ibsen, LB 2011, Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus. in Symposium Proceedings: 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering. Pan-AM CGS Geotechnical Conference, Toronto, Ontario, 2011 Pan-Am CGS Geotechnical Conference, Toronto, Ontario, Canada, 02/10/2011.

Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus. / Grønbech, Gitte Lyng; Nielsen, Benjaminn Nordahl; Ibsen, Lars Bo.

Symposium Proceedings: 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering. Toronto, Ontario : Pan-AM CGS Geotechnical Conference, 2011.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

T1 - Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus

AU - Grønbech, Gitte Lyng

AU - Nielsen, Benjaminn Nordahl

AU - Ibsen, Lars Bo

N1 - Published on a cd.

PY - 2011

Y1 - 2011

N2 - The connection between the Liquid Limit found using the Casagrande and the Fall Cone Apparatus is tested for the Danish Eocene Clay that has Liquid Limits up to 350% and Plasticity Index up to 300%, which is well outside the normal range of Casagrande’s Plasticity Chart. Based on the high plasticity of the Danish Eocene Clay two new classification categories are introduces to the Plasticity Chart in order to fully describe the clay; super high plasticity Clay (CS) and extremely high plasticity clay (CE), covering the range up to Liquid Limits up to 200% and 350% respectively. A correlation between the Liquid Limit from the Casagrande and the Fall Cone Apparatus is for super high plasticity clay. For extremely high plasticity clay it was found that the Fall Cone method underestimated the Liquid Limit with up to 43 percentage points, making the Fall Cone an unreliable method of finding the Liquid Limit for extremely high plasticity clay.

AB - The connection between the Liquid Limit found using the Casagrande and the Fall Cone Apparatus is tested for the Danish Eocene Clay that has Liquid Limits up to 350% and Plasticity Index up to 300%, which is well outside the normal range of Casagrande’s Plasticity Chart. Based on the high plasticity of the Danish Eocene Clay two new classification categories are introduces to the Plasticity Chart in order to fully describe the clay; super high plasticity Clay (CS) and extremely high plasticity clay (CE), covering the range up to Liquid Limits up to 200% and 350% respectively. A correlation between the Liquid Limit from the Casagrande and the Fall Cone Apparatus is for super high plasticity clay. For extremely high plasticity clay it was found that the Fall Cone method underestimated the Liquid Limit with up to 43 percentage points, making the Fall Cone an unreliable method of finding the Liquid Limit for extremely high plasticity clay.

KW - Clay

KW - Liquid Limit

KW - Clay

KW - Liquid Limit

M3 - Article in proceeding

BT - Symposium Proceedings

PB - Pan-AM CGS Geotechnical Conference

CY - Toronto, Ontario

ER -

Grønbech GL, Nielsen BN, Ibsen LB. Comparison of Liquid Limit of Highly Plastic Clay by Means of Casagrande and Fall Cone Apparatus. In Symposium Proceedings: 64th Canadian Geotechnical Conference and 14th Pan-American Conference on Soil Mechanics and Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering. Toronto, Ontario: Pan-AM CGS Geotechnical Conference. 2011