Ecospritz is a special, patented binder used for the production of mortar and structural sprayed concrete. It does not contain alkalis and no additive is required for the spraying equipment. Without the need for additives, with a minimum waste and high final strengths (40 MPa at 28 days confirmed during construction by core sampling), Ecospritz can be used for producing ordinary gunites and structural sprayed concrete for tunnels, unstable walls, tanks and embankments.