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
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Creator |
UDAY, KV
PADMAKUMAR, GP SINGH, DN |
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Subject |
Sands
Fly ash cenospheres Morphology Confocal microscopy Laser microscopy Laser obscuration PARTICLE-SHAPE GRANULAR-MATERIALS SIZE DISTRIBUTION SANDS CONDUCTIVITY DENSITY MEDIA |
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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.
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Publisher |
ELSEVIER SCIENCE BV
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Date |
2014-10-14T13:17:58Z
2014-10-14T13:17:58Z 2013 |
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Type |
Article
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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 |
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Language |
en
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