Swelling pressure and leaching behaviors of synthetic bituminized waste products with various salt contents under a constant-volume condition
定積条件下における塩含有量が異なる模擬アスファルト固化体の膨潤圧及び浸出挙動
入澤 啓太; 目黒 義弘
Irisawa, Keita; Meguro, Yoshihiro
We investigated the swelling pressure of synthetic bituminized waste products (BWPs) and the amount of Na$$^{+}$$ in the leachate from them under a constant-volume condition when the BWPs were in contact with water to understand influences of salt content on the surrounding environments after disposal of radioactive BWPs in a geological repository. The observation of the cross section of the synthetic BWP specimens revealed that micropores, which were formed after soluble salts leached out from the specimens, shrank and deformed near the surface of the specimens. The salt content in the synthetic BWP specimens depended on the amount of water taken up, indicating that an increase in the amount of water led to increases in the swelling pressure and the cumulative amount of Na$$^{+}$$ in the leachate. It was found that the shrinkage and deformation of the micropores near the surface of the synthetic BWP specimens that arose under the constant-volume condition significantly influenced increases in the swelling pressure and cumulative amount of Na$$^{+}$$ in the leachate.
使用言語 : English
掲載資料名 : Journal of Nuclear Science and Technology
: 54
: 3
ページ数 : p.365 - 372
発行年月 : 2017/03
出版社名 : Taylor & Francis
特許データ :
PDF :
論文URL :
キーワード : bituminized waste product; salt content; swelling pressure; leaching; water uptake; osmosis
使用施設 :
広報プレスリリース :
論文解説記事
(成果普及情報誌)
:
受委託・共同研究相手機関 :
 
登録番号 : AA20160024
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論文投稿番号 :
Accesses  (From Jun. 2, 2014)
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