图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
多孔介质期刊
影响因子: 1.49 5年影响因子: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v9.i5.80
pages 483-489

Immobilization of 137Cs and 60Co in a Concrete Matrix. Part Two: Mathematical Modeling of Transport Phenomena

Ilija Plecas
VINCA Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro
Slavko Dimovic
VINCA Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia and Montenegro

ABSTRACT

Our previous work has evaluated the leaching of 137Cs and 60Co from a waste composite into a surrounding fluid and the determination of retardation factors, KF, and coefficients of distribution, kd, using a simplified mathematical model for analyzing the migration of radionuclides. In our experiment, we have analyzed the mechanism of 137Cs and 60Co leaching values during a period of 60 days. Particularly, we have investigated here the latter modified scenario. Transport phenomena involved in the leaching of a radioactive material from a cement composite matrix are investigated using an empirical method employing a polynomial equation. Results presented in this paper are examples of results obtained in a 25-year mortar and concrete testing project, which will influence the design of the engineered trenches system for a future central Serbian radioactive waste storage center.


Articles with similar content:

Immobilization of 137Cs and 60Co in Concrete Matrix
Journal of Porous Media, Vol.9, 2006, issue 2
Slavko Dimovic, Ilija Plecas
Curing Time Effect on the Fraction of 137Cs from Cement-Ion Exchange Resins-Bentonite Clay Composition
Journal of Porous Media, Vol.9, 2006, issue 2
Slavko Dimovic, Ilija Plecas
Natural Convective Mass Transfer from Embedded Cylinders in Saturated Porous Media
Journal of Porous Media, Vol.9, 2006, issue 3
M. Al-Khater, N. A. Al-Baghli, S. U. Rahman, M. A. Abul-Hamayel
PROCESS PARAMETER OPTIMIZATION IN DRILLING Al2O3- AND TiO2-FILLED GFRP COMPOSITES TO MINIMIZE THRUST FORCE AND DELAMINATION
Composites: Mechanics, Computations, Applications: An International Journal, Vol.7, 2016, issue 1
R. K. Nayak, Soumya Dash, Bharat C. Routara
NUMERICAL REPRESENTATIVE ELEMENTARY VOLUME GENERATION OF A SIMPLIFIED CEMENT PASTE AND ESTIMATION OF ITS DIFFUSIVITY AND COMPARISON WITH DEDICATED EXPERIMENTS
Journal of Porous Media, Vol.20, 2017, issue 1
A. Dubus, A. Dauzeres, P.E. Labeau, E. L'Hopital, Nicolas Seigneur, V. Detilleux, M. Voutilainen