FEBEX II: Full-scale engineered barriers experiment in crystalline host rock phase II

• Research unit: EU RFP
• Project number: 99.0749-2

Key words (English)

Febex bentonite; porewater chemistry; cation exchange capacity; caesium sorption; montmorillonite clay;
Nuclear Fission; Radioactive Waste; Safety

Alternative project number (English)

EU project number: FIS5-1999-00120

Research programs (English)

EU-programme: 5. Frame Research Programme - 5.5.2 Nuclear fission

Short description (English)

See abstract

Partners and International Organizations (English)

Coordinator: ENRESA, Madrid (E)

Abstract (English)

FEBEX II consists in the extension of the operational phase of the FEBEX (I) insitu test until the year 2001, prior to proceeding to its dismantling. It is also planned the extension, until quite-saturation, of the heating phase of the mock-uptest; design and construction of a geochemical mock-up, and some complementary laboratory tests, as well as modelling works. The good performance of the whole system, justifies the prolongation of the FEBEX tests two additional years in the case of the in situ and for as long as needed to get close to saturation in the case of the mock-up, while the heating and monitoring systems remain operative. It is planned dismantle only one of the heaters of the in situ test during FEBEXII, leaving the second to continue the heating and buffer saturation.

References in databases (English)

Swiss Database: Euro-DB of the
State Secretariat for Education and Research
Hallwylstrasse 4
CH-3003 Berne, Switzerland
Tel. [phone]
Swiss Project-Number: 99.0749-2