In concrete products in general and in those placed below the level of the ground level or in the vicinity of aquifers, in particular a constructive detail, moreover indispensable, such as the formwork spacers consisting of PVC tubulars, usually about 21 mm in diameter internal, constitutes a dangerous element of discontinuity, permeation and infiltration.
In fact, the water is located at the concrete-spacer interface, a place for differential shrinkage and frequent crawl spaces, an easy way of access and infiltration capable of seriously affecting the hermetic seal of the building.
The special characteristics of the Azichem hydro-expansive tires allow the protection to be extended to this true and constructive “Achilles heel”, through water-tight devices that are both easy to manufacture and economically advantageous, consisting of organically functional systems: the RINGSEAL T 21 hydro-expansive gaskets.

 

 

RINGSEAL T21

RINGSEAL T­21 is an o-ring made with a specialised hydro-expansive rubber that in contact with the water reacts by increasing its own initial volume. RINGSEAL T­21, used in combination with a tubular spacer for metal formwork, hermetically seals any discontinuities which could easily settle in the concrete due to the presence of the spacer, and which would compromise the watertightness of the masonry itself.

RINGSEAL T21

RINGSEAL T­21 is an o-ring made with a specialised hydro-expansive rubber that in contact with the water reacts by increasing its own initial volume. RINGSEAL T­21, used in combination with a tubular spacer for metal formwork, hermetically seals any discontinuities which could easily settle in the concrete due to the presence of the spacer, and which would compromise the watertightness of the masonry itself.

Technical Data Sheet

Safety data sheet