Modified Free Swell Index for Clays

Modified Free Swell Index for Clays

Free swell tests are commonly used for identifying expansive clays and to predict the swelling potential. The method as proposed by Holtz and Gibbs suffers from inaccuracies in volume measurement of dry powder in air. In this paper, a nondimensional modified free swell index is proposed, which remov...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Geotechnical testing journal 1987-06, Vol.10 (2), p.80-85
Hauptverfasser: Sivapullaiah, PV, Sitharam, TG, Subba Rao, KS
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Buildings. Public works
Exact sciences and technology
Geotechnics
Soil investigations. Testing
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Free swell tests are commonly used for identifying expansive clays and to predict the swelling potential. The method as proposed by Holtz and Gibbs suffers from inaccuracies in volume measurement of dry powder in air. In this paper, a nondimensional modified free swell index is proposed, which removes the uncertainties present in the Holtz and Gibbs method. The modified free swell index is shown to bear unique correlations with liquid limit (volume basis) and percent swell of oedometer specimens compacted to proctor optimum conditions.
ISSN:0149-6115
1945-7545
DOI:10.1520/GTJ10936J