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A German limestone quarry is using a BHS twin-shaft mixer to add quicklime to clay-contaminated pre-screened material, making it possible to completely separate the clay from the rock, most of which can then be processed for sale. As a result of this dry process, 70% of material that was previously being sent to landfill is now usable, as Gerd Schuler and Stefan Kunkel explain.
Breedon Group chief executive officer Pat Ward talks to Quarry Management about the group’s recent acquisitions, including its biggest yet – the Irish Lagan Group – plus an elegant deal with CRH/Tarmac, and how they impact on the Breedon operation
In his closing speech from the Pavement Preservation & Recycling Summit (PPRS) 2018, John Read, general manager specialities technology with Shell Bitumen, talks about the need to prepare roads for a chaning world
David Wadsworth, UK sales manager at Hycontrol, discusses the health and safety issues in maintaining silo safety equipment at height and puts the case for ground-level testing