Salt-concrete

Salt-concrete

Salt-concrete

Construction material used to reduce water inflow in radioactive waste repositories in salt rock


Salt-concrete (or salzbeton) is a building material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16% cement, 39% halite, 16% limestone powder, 14% water and 15% sand.[1]

History

Salt-concrete was used for the first time in 1984 in the potash mine in Rocanville in Canada.[2] A salt-concrete seal was also installed in the Asse II mine in Lower Saxony in 1995.[3]

Filling tunnels

Since the end of the repository for radioactive waste Morsleben in 1998, the salt dome stability deteriorated to a state where it could collapse. Since 2003, a volume of 480,000 m3 of salt-concrete has been pumped into the pit to temporarily stabilize the upper levels. In addition another 4,000,000 m3 of salt-concrete will be used to temporarily stabilize the lower levels.[4]

See also


References

  1. "Endlager für radioaktive Abfälle Morsleben (ERAM)". Archived from the original on 2009-02-26.

Share this article:

This article uses material from the Wikipedia article Salt-concrete, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.