公开(公告)号：US20220259104A1

公开(公告)日：2022-08-18

申请号：US17618153

申请日：2020-06-10

Applicant: HOLCIM TECHNOLOGY LTD

Inventor： Eric BROUARD ,  Olivier WATT ,  Delphine THOMAS ,  Antoine CREYX

IPC: C04B28/08 ,  C04B28/04 ,  C04B18/12 ,  C04B24/32 ,  C04B24/00 ,  C04B24/26 ,  C04B24/38 ,  C04B40/00

Abstract: A process of preparing a cemented paste backfill material, the material including ground mine tailings, a hydraulic binder and water, wherein the solids content of the backfill material is 70-82 wt.-%, the process including a) providing a dry premix, the premix including the hydraulic binder, a superplasticizer and optionally a defoaming agent, b) mixing the dry premix with the ground mine tailings and water.

公开(公告)号：US20220127195A1

公开(公告)日：2022-04-28

申请号：US17430153

申请日：2020-02-13

Applicant: HOLCIM TECHNOLOGY LTD

Inventor： Olivier WATT ,  Delphine THOMAS

IPC: C04B22/14 ,  C04B24/12 ,  C04B28/04 ,  C04B22/06 ,  C04B103/50

Abstract: A method includes adding an acidic salt of Iron (III) as additive to cement, mortar or concrete.