METHOD TO SEAL WORKING JOINTS IN CONCRETING GAPS Russian patent published in 2011 - IPC E04B1/68 

FIELD: construction.

SUBSTANCE: sealing section bar is made of galvanised iron strip, on both sides of which a polymer coating is applied with cohesion type of rupture and value of adhesion to metal surfaces and freshly laid concrete of at least 0.15 MPa, for instance, mastic-polymer sealant "Abris S" produced by OOO ZGM according to technical conditions 5772-003-43008408-99. Application should provide for tight adjacency of sealant "Abris S" to sheet of galvanised iron. To prevent contamination of section bar surface, a protective anti-adhesive pad divided into two parts along item length is applied. Pad is made of tracing paper or thin polyethylene film.

EFFECT: improved reliability and water impermeability of working joints of concreting and reduced cost of sealing elements.

1 cl, 1 tbl