Method for the application of mineral binder compositions containing fibres

A method for applying a fiber-containing building material, comprising

• providing a hydrous mineral binder composition, at least one aqueous accelerator for setting of the hydrous mineral binder composition, and fibers,
• feeding the hydrous mineral binder composition;
• to a continuous mixer comprising
• a drive,
• a mixing region comprising at least one inlet and at least one dynamic mixing element and
• a conveying region connected to the mixing region and comprising at least one conveying device and an outlet,
• the hydrous mineral binder composition being conveyed through the at least one inlet into the mixing region,
• feeding the fibers into the mixing region of the continuous mixer,
• feeding the at least one aqueous accelerator into the mixing region of the continuous mixer,
• mixing the at least one aqueous accelerator with the hydrous mineral binder composition and the fibers in the mixing region of the continuous mixer to provide an accelerated fiber-containing mineral binder composition,
• conveying the accelerated fiber-containing mineral binder composition by means of the conveying device to the outlet, and
• applying the accelerated fiber-containing mineral binder composition,
• wherein the dynamic mixing element comprises a stirring shaft having stirring elements, the stirring elements taking the form of pegs, and a distance between adjacent stirring elements being at least 60% of the length of the longest fibers.