ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 5

Measurement of Volumetric and Linear Shrinkage on Black Cotton Soil

Subba Rao, KS
Associate professor, Indian Institute of Science, Bangalore,

Satyadas, GC
Professor and head, Malnad College of Engineering, Hassan, Karnataka,

Abstract

Experimental investigations on the shrinkage of expansive black cotton soil have been made to study the process of shrinkage. Tests have been conducted on compacted soil specimens with different water contents under controlled conditions of temperature and humidity. The changes that take place in the air and water phases of specimens have been analyzed, and shrinkage paths have been examined both for volumetric and linear shrinkage. Volumetric shrinkage is shown to take a unique shrinkage path in terms of water loss, independent of water content or rate of shrinking. In contrast, the linear shrinkage paths are shown to be dependent on conditions under which shrinkage takes place.

Keywords:
soil tests, clays, laboratory tests, shrinkage, temperature, humidity

Paper ID: GTJ10512J
DOI: 10.1520/GTJ10512J
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