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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4651

Title: Accelerated diffusion test on the intact rock mass
Authors: RAO, BH
DALINAIDU, A
SINGH, DN
Keywords: chloride diffusivity
solute transport
fractured chalk
migration
coefficients
sediments
concrete
porosity
field
water
Issue Date: 2007
Publisher: AMER SOC TESTING MATERIALS
Citation: JOURNAL OF TESTING AND EVALUATION, 35(2), 111-117
Abstract: Contaminant transport through intact rock mass is predominantly diffusive and its modeling using the conventional laboratory tests is extremely time consuming. In addition, maintaining constant ambient conditions over a long duration is difficult and practically impossible. This necessitates modification of the conventional laboratory diffusion experiments so that the diffusion of ions through the intact rock mass is accelerated. To achieve this, researchers have employed an electric field across the samples of concrete and clays. However, the influence of the applied electric field on diffusion characteristics of the intact rock mass has not been studied in detail. With this in view, diffusion tests were conducted on the samples of chalk and sandstone by applying electric fields of different strength. Details of the testing methodology are presented in this paper. Efforts were also made to study the influence of the applied electric field on diffusion characteristics of these rocks.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/4651
http://hdl.handle.net/10054/4651
ISSN: 0090-3973
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