Gas sealing at Mine Lohberg/Osterfeld (Dinslaken, Germany) In the past pumped cement was used for gas sealing of the roadside packs in the Lohberg/Osterfeld mine at Dinslaken. Over the course of time this material had the tendency to fail due to convergence and to allow gas influx into the driveage again. Orica Ground Support (formerly know as Minova) developed a new technology to improve the sealing quality and shorten the setting time.

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