SYMPOSIA PAPER Published: 01 January 1986

Consolidation of Sand-Clay Mixtures


Consolidation properties of bentonite-sand mixtures, as reclamation materials, were investigated in the one-dimensional consolidation test. From the relationships between the void ratio of nonclay fraction and consolidation pressure was found the existence of a threshold void ratio at which the frictional resistance becomes dominant during consolidation. The threshold value is slightly greater than the maximum void ratio of sand used for the mixtures.

A new standard, which utilizes values of clay content, dry density, and threshold void ratio, is proposed to clarify the boundary between sandy and clayey soils.

The salt infiltration into the mixtures causes a rapid settlement but greatly reduces the swelling in unloading stage. As long as the void ratio of nonclay fraction is less than the threshold value, however, the influence of salt disappears.

Author Information

Fukue, M
Tokai University, Shimizu, Japan
Okusa, S
Tokai University, Shimizu, Japan
Nakamura, T
Tokai University, Shimizu, Japan
Price: $25.00
Contact Sales
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Developed by Committee: D18
Pages: 627–641
DOI: 10.1520/STP34638S
ISBN-EB: 978-0-8031-4962-5
ISBN-13: 978-0-8031-0446-4