Journal Published Online: 01 December 1983
Volume 6, Issue 4

A Method of Estimating the In-Situ Density of Dry Uniformly Graded Sand Under Controlled Conditions of Placement



One of the main problems faced by investigators working with dry sand is the inability to obtain undisturbed specimens from which fundamental soil parameters may be established. The two principal related variables in sand are density and the angle of internal shearing resistance. This paper describes a method of estimating the in-situ sand density from a small specimen of sand, the grains of which are cemented together using plaster. The method uses an unhydrated sand/plaster mixture that is deposited in pockets at strategic locations within the soil profile during its construction. The plaster is subsequently hydrated by the injection of a quantity of water through a small pipe venting at the location of the specimen. Such specimens are retrieved at the end of a test and their densities determined from which the density of the uncemented sand in the proximity of the specimen can be estimated using a relationship previously determined through calibration.

Author Information

Wersching, SN
The Polytechnic of Wales, Pontypridd, Wales, United Kingdom
Delpak, R
The Polytechnic of Wales, Pontypridd, Wales, United Kingdom
Rowlands, GO
The Polytechnic of Wales, Pontypridd, Wales, United Kingdom
Pages: 5
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: GTJ10924J
ISSN: 0149-6115
DOI: 10.1520/GTJ10924J