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亀井 玄人; Alexander, W. R.*; Clark, I. D.*; Degnan, P.*; Elie, M.*; Khoury, H.*; Milodowski, A. E.*; Pitty, A. F.*; Salameh, E.*; Smellie, J. A. T.*
Proceedings of 13th International Conference on Environmental Remediation and Radioactive Waste Management (ICEM 2010) (CD-ROM), p.141 - 147, 2010/10
Natural cements in Jordan have been produced by the combustion of organic-rich clay biomicrites and are very close analogues of industrial cement. Following interaction with groundwaters, natural hyperalkaline leachates are produced and these move out of the cement into the surrounding host rock, subsequently interacting with and altering it. The conclusions of the Jordan Natural Cement Analogue Study are presented and the safety assessment (SA) implications of the interaction of cementitious hyperalkaline leachates on repository host rock and bentonite are discussed.
Alexander, W. R.*; 亀井 玄人; Smellie, J. A. T.*
IAEA-CN-135/18, p.75 - 78, 2005/10
セメントが放射性廃棄物処分場に多量に使用された場合のナチュラルアナログの好例とされるヨルダンのサイトについて、約15年にわたり国際共同研究が実施されてきた。本報告はその研究の概要を記すものである。
亀井 玄人; Alexander, W. R.*; Smellie, J. A. T.*
JNC TN8400 2005-005, 43 Pages, 2005/03
放射性廃棄物処分場において、セメントに由来する高アルカリ性の地下水が関与する現象のナチュラルアナログとして、ヨルダンのマカーリン地域に産する天然セメントとその周辺の地下水に伴う現象が、国際共同研究プロジェクトとして調査された。本報告書では、全部で4段階から構成されるプロジェクトのうちのフェーズIIIIまでについて、その主な成果を示す。
亀井 玄人; Alexander, W. R.*; Clark, I. D.*; Degnan, P.*; Elie, M.*; Khoury, H.*; Mader, U.*; Milodowski, A. E.*; Pitty, A. F.*; Salameh, E.*; et al.
no journal, ,
The safety assessment implications of the novel data from the Jordan Natural Analogue Study, which looked into interaction of natural cementitious hyperalkaline leachates on repository host rocks and clays, are presented. For example, Maqarin site in northern Jordan represents repository host rocks with advective groundwater systems. Hydrogeological, hydrochemical and structural data collected on the fractured rock at the site has been used to assess the likely implications of hyperalkaine leachate interaction on the long-term flow conditions in similar repository host rocks.