Brief description of embodiments of the dams to the mine in the applications or anhydrite allege, a device for implementing this process, and which were used.

摘要

1. Process for the production of mine barriers of lightweight plaster or anhydrite, characterized in that it consists of mixing the plaster or anhydrite with a stable aqueous foam, constituted by a foaming agent and water, cross-linked or not, then putting the obtained mixture in place between the walls delimiting the barrier, by pumping or the like, the product then expanding in an amount between 10% and 300% as a function of the quantity of added foam, and having a final lightweight cellular structure.