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公开(公告)号:EP4146718B1
公开(公告)日:2024-05-01
申请号:EP21722890.7
申请日:2021-05-04
IPC分类号: C08G18/38 , C08G18/30 , C08G18/10 , C08G18/76 , C08G18/18 , C04B28/26 , C09K17/46 , E21D20/02 , C04B111/00
CPC分类号: C08G18/10 , C08G18/7664 , C08G18/1825 , C04B28/26 , C04B2111/0072420130101 , C04B2111/0071520130101 , C08G2190/0020130101 , E21D20/02 , Y02W30/91
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公开(公告)号:EP4421048A1
公开(公告)日:2024-08-28
申请号:EP23158492.1
申请日:2023-02-24
发明人: DHERS, Sebastien , FREIMUT, Dominik , WELDERT, Kai-Steffen , GUGGENBERGER, Rebecca , MARTIC, Zlatko
CPC分类号: C04B28/04 , C04B2111/0072420130101 , E21F15/005
摘要: A backfill material useful in mining and tunneling applications comprises a) tailings, b) a binder component, c) water, and d) at least one dispersant selected from polycarboxylate ethers and polycarboxylic acids. The binder component comprises a Portland cement clinker-based binder and calcined clay. By the partial substitution of Portland cement clinker-based binder by calcined clay, the backfill material has a reduced carbon footprint. The yield point of the material and the compressive strength of the formed backfill are not compromised.
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公开(公告)号:EP3750858B1
公开(公告)日:2024-07-03
申请号:EP19290036.3
申请日:2019-06-12
CPC分类号: C04B28/08 , C04B40/0028 , C04B2111/0072420130101 , Y02W30/91
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