Method for forming masonry unit

A method for forming substantially flat and smooth horizontal surfaces on upper and lower faces of a masonry unit oriented in its position of intended use in a masonry construction in which a flat metal plate having an upper face and a lower face is interposed between upper and lower masonry units with the upper and lower faces of adjacent masonry units being in surface-to-surface contact with the upper and lower faces of the metal plate, and the upper and lower masonry units being integrally assembled by tightening force of fastening elements, extending through a vertical through-hole of the masonry unit, the masonry unit forming method comprising the steps of:

• containing said masonry unit vertically in a mold with the masonry unit positioned so that the through-hole opens on both sides of the masonry unit and is oriented sideways, so that a space chargeable with a fluidic covering material is defined between said upper and lower faces of said masonry unit and vertical wall surfaces of the mold;
• inserting a core into the through-hole;
• charging the fluidic covering material in said space;
• and
• extracting the core from the through-hole and removing the masonry unit from the mold by lifting the masonry unit, when a predetermined setting time passes after charging the fluidic material,
• whereby the upper and lower faces of said masonry unit are covered with the solidified covering material to form the substantially flat and smooth upper and lower horizontal surfaces on the masonry unit.