PERMANENT FORMWORK ELEMENT Russian patent published in 2023 - IPC E04B2/84 E04C1/00 

FIELD: production of building materials.

SUBSTANCE: invention can be used for manufacturing of building elements for construction of enclosing walls of buildings and structures. In a permanent formwork element, which includes at least one row of through holes along the outer surface, having a length, together with the installation gap, that is a multiple of the distance between the centres of the holes, the distances from the centres of the outer holes to the nearest side surfaces are less than half the distance between the centres of the nearest holes by half installation gap, while on the inner surface of the permanent formwork element there are grooves that have an expansion in the direction from this surface; according to the invention, each row of holes consists of at least three holes, and the grooves that have an expansion in the direction from this surface are located in the spaces between holes.

EFFECT: ensuring the accuracy of placement of permanent formwork elements during their laying, reliable connection of the elements with the filling material, as well as ensuring high technological properties of the elements during their manufacture and saving material, which together ensures increased accuracy and reliability of the created permanent formwork structures.

2 cl, 3 dwg