Patent ID: 11873250
Assignee: VENATOR GERMANY GMBH
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 17:
18. A method of using a workable building material in a tunnel construction or in a 3D concrete printer, the method comprising:
providing the workable building material by,
providing the fast-curing mineral binder mixture as recited in claim 1 a solid,
mixing the fast-curing mineral binder mixture with at least one of a regular filler and a lightweight filler so as to provide a dry building material, and
mixing the dry building material with water so as to provide the workable building material; and

using the workable building material in the tunnel construction by applying or spraying the workable building material onto walls of a tunnel, or
using the workable building material in the 3D concrete printer by providing the workable building material to the 3D concrete printer and by printing therewith.