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Some studies on morphology of the coarse-grained soils

DSpace at IIT Bombay

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Title Some studies on morphology of the coarse-grained soils
 
Creator UDAY, KV
PADMAKUMAR, GP
SINGH, DN
 
Subject Sands
Fly ash cenospheres
Morphology
Confocal microscopy
Laser microscopy
Laser obscuration
PARTICLE-SHAPE
GRANULAR-MATERIALS
SIZE DISTRIBUTION
SANDS
CONDUCTIVITY
DENSITY
MEDIA
 
Description Soil is a particulate material and its engineering properties are mainly controlled by the particle size and shape (i.e., morphological characteristics). In this context, earlier researchers have demonstrated dependence of soil specific parameters like permeability, shear strength, electrical conductivity, thermal conductivity and dielectric characteristics on particle morphology. It has been observed that to establish the morphology of soil particles, state-of-the-art techniques like confocal microscopy, 3-D laser microscopy and laser obscuration time method have been developed and adopted. By employing these techniques, parameters like particle size, roundness, sphericity and roughness, which are indicators of the particle morphology, have been established. However, it has been realized that each of these techniques exhibit several limitations, mainly due to the presence of a wide range of particle sizes in the soil mass. This necessitates a systematic study of the data obtained from these techniques, on the same material, to select the best technique for determining soil morphology. With this in view, morphology of different coarse-grained materials (sands and fly ash cenospheres) was investigated by employing the abovementioned techniques and the results of these tests are compared. (C) 2012 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE BV
 
Date 2014-10-14T13:17:58Z
2014-10-14T13:17:58Z
2013
 
Type Article
 
Identifier ENGINEERING GEOLOGY, 152(1)48-55
http://dx.doi.org/10.1016/j.enggeo.2012.10.001
http://dspace.library.iitb.ac.in/jspui/handle/100/14500
 
Language en