Work

Interpretation of leaching data for cementitious waste forms using analytical solutions based on mass transport theory and empiricism

Year: 1991

Type: article

Abstract: Despite the demonstrated importance of diffusion control in leaching, other mechanisms have been observed to play a role and leaching from porous solid bodies is not simple diffusion. Only simple diffusion theory has been developed well enough for extrapolation, as yet. The well developed diffusion theory, used in data analysis by ANSI/ANS-16.1 and the NEWBOX program, can help in trying to extrapolate and predict the performance of solidified waste forms over decades and centuries, but the limitations and increased uncertainty must be understood in so doing. Treating leaching as a semi-infinite medium problem, as done in the Cote model, results in simpler equations, but limits, application to early leaching behavior when less than 20% of a given component has been leached.

Source: OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information)

Authors: R.D. Spence, H.W. Godbee, O. K. Tallent, E. W. McDaniel, C. W. Nestor

Language: English

Topic: Nuclear materials and radiation effects

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: green

OpenAlex ID: W1572432060

FWCI:

Cites:

Cited by: 3

Related to: 10