Journal Search Engine

to

Search Advanced Search Adode Reader(link)
View PDF Download PDF Export Citation Korean Bibliography PMC Previewer
ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
Journal of Nuclear Fuel Cycle and Waste Technology Vol.6 No.1 pp.35-44
DOI :

반응성용질이동 모델링을 이용한 장기간의 콘크리트 변질과정과 우라늄의 용해도에 대한 개념 모델링

Conceptual Reactive Transport Modeling of Long-term Concrete Degradation and Uranium Solubility

Byoung Young Choi, Yong Kwon Koh, Geon Young Kim, Si Won Yoo, Sang Won An, Dae Seok Bae

Abstract

Long-term degradation of coment barrier by diffusion was studied with reactive transport modeling. The result of modeling showed that cement barrier was altered about 30cm thickness after 50,000 years. The pH decreased from 13.0 to 11.9 because of depletion of alkali ions, and dissolution/precipitation of portlandite and CSH (Calcium Silicate Hydrate). In addition, porosity increased about 0.3 because of dissolution of portlandite and . The solubility of uranium also increased with the increase of pe value The results of this study indicate that long-term degradation of comet can enhance the transport of nuclide by changing pH, pe, porosity in barrier.
Cement, Diffusion, Reactive transport, Porosity, Solubility 시멘트, 확산, 반응성 용질이동, 공극률, 용해도

 

Reference

Editorial Office
Contact Information

- Tel: +82-42-861-5851, 866-4157
- Fax: +82-42-861-5852
- E-mail: krs@krs.or.kr

SCImago Journal & Country Rank