A new technique for shotcreting the replacement plug for FEBEX II went through some successful trials before being used in the FEBEX experiment. The technique involves spraying a specialised concrete mixture over the existing bentonite.


Trials of the new technique of shotcreting		  
Spraying the specialised concrete mixture over the bentonite
     

View of the final plug		  
A closer view of the final plug

 

Full-scale High Level Waste Engineered Barriers (FEBEX) - Excavation Phase