Hydraulically-bonded multilayer panel

A method for producing a hydraulically-bonded multilayer panel with at least one face layer and at least one core layer, wherein the method comprises the following steps:

• a. introducing a flowable face mixture into a mold, wherein the face mixture contains at least the following components:
• i. face paste containing at least
• 1. hydraulic binder and
• 2. water;
• and
• ii. aggregate, wherein the aggregate has a mean diameter d50 determined according to ISO 13320:2009 and/or according to EN 12620 of greater than 100.0 μm;
• whereby a face mixture layer is formed;
• b. introducing a dry to earth-moist core mixture into the mold, wherein the core mixture contains at least the following components:
• i. core paste containing at least
• 1. hydraulic binder,
• 2. fines having a mean diameter d50 determined according to ISO 13320:2009 of
• 1.0 to 30.0 μm, in particular 1.0 to 5.0 μm, and fines having a mean diameter d50 according to ISO 13320:2009 of 30.1 to 100.0 μm in an amount of 0 to 45 vol %, relative to the total volume of hydraulic binder and fines contained in the core paste, and
• 3. water;
• and
• ii. aggregate, wherein the aggregate has a mean diameter d50 determined according to ISO 13320:2009 and/or according to EN 12620 of greater than 100.0 μm;
• whereby a core mixture layer is formed, and
• c. pressing the face mixture layer with the core mixture layer into the mold to form a hydraulically-bonded, directly strippable multilayer panel with at least one face layer and at least one core layer, wherein water contained in the face mixture layer is partially or completely pressed into the core mixture layer.