๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A new interpretation of measured ionic diffusion coefficient in compacted bentonite-based materials

โœ Scribed by Steven C.H. Cheung

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
522 KB
Volume
28
Category
Article
ISSN
0013-7952

No coin nor oath required. For personal study only.

โœฆ Synopsis

Previous model based on free-water properties to interpret the measured diffusion coefficient in compacted bentonite-based materials is demonstrated to be inadequate. A model considering ionic diffusion in clay surface (bound) and interstitial (free) water is presented to interpret the measured diffusion coefficients and to explain the possible reasons for the discrepancies in the data. The measured diffusion coefficient is determined by the predominant diffusion pathway, which depends on the charge of diffusing species, soil fabric, diffusion time and by the starting concentration condition of the method used.

O?Cf/?t + ?(TdKaCf)/?t = V. (D,OVCf)

๐Ÿ“œ SIMILAR VOLUMES

A discussion of the paper โ€œcalculation o
A discussion of the paper โ€œcalculation of chloride diffusion coefficients in concrete from ionic migration measurementsโ€ by C. Andrade
โœ A. Xu; S. Chandra ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 255 KB

It is a very interesting paper [1] and the author should be congratulated for touching such an important subject and making a comprehensive review. However, while doing so the author has discussed many other topics which are not connected with the calculation of chloride difussion coefficient. For t