Abandonment of Nuclear Reactor


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Fill decommissioned experimental nuclear pebble bed reactor with cement to achieve long-term stability; limit weight of filled reactor to enable final placement in an old mine shaft



Developed an ultralightweight cement (0.7 sg) so that the filled reactor could be shifted by the heaviest crane in Europe; carried out extensive testing to make sure the new cement could fill all voids and develop required compressive strength.



Completed the fill and placement without safety issues; achieved decommissioning and demobilization without incident







How to contact us:


Handelsgesellschaft Renn mbH

Theodor-Heuss-Ring 15

52511 Geilenkirchen/ Germany

FON: +49 / 2451 / 627200


E-Mail:  renn@renn-chemie.de