Ringseal T21

Hydro-expansive rubber seal for spacers of the tubular formwork

Ringseal T21 is a ring gasket made with a special hydro-expansive rubber that reacts upon contact with water, increasing its initial volume. Used in combination with a tubular spacer for metal formwork with a diameter of 22 mm, Ringseal T21 hermetically seals any discontinuities in conduits that could easily settle in the concrete due to the presence of the spacer and which would compromise the impermeability of the masonry itself. The hydro-expansive capacity of Ringseal T21 has been laboratory tested with three different types of water: demineralised, salt and with a highly basic pH (to simulate conditions in contact with concrete). The expansion tests showed a variation in volume ranging from a minimum of around 200% with salt water (three times the initial volume) to a maximum of over 900% with demineralised water.

Komponente

Jednokomponentna

Izgled

Gasket

Carinski kod

3926 9097

Zatražite informacije o proizvodu

Pripadajuće linije

Gdje se koristi

Kako se koristi

Tehnički podaci

Dodatni sadržaji

Upozorenja i mjere opreza

Mediji

Dopuštene podloge

Metode primjene

Osnovne značajke

Diameter: 22 mm

Hydroexpansive product: +200 / +900 %

Nije zapaljivo

Odgovara za uporabu u kontaktu s pitkom vodom

Otporno na UV-zrake

Rok trajanja: 24 mjeseci

Tehničke specifikacije

Dostupne boje

Pakiranja i dimenzije

Skladištenje i čuvanje

Čuvati proizvod u originalnom pakiranju, u dobro prozračenom i suhom prostoru, izbjegavajući mraz i izravno sunčevo svjetlo.

Dodatni sadržaji

Expansion test results

RINGSEAL T21 has been tested with four different types of aqueous solutions:

- demineralised water

- groundwater (obtained with the concentrations limit pursuant to Legislative Decree 152/06: Ph 7.7 , sulphates 250 mg/l nitrate 50 mg/l, chlorides 200 mg/l, iron 0.2 mg/l, manganese 0.05 mg/l, nickel 0.2 mg/l)

- salt water (NaCl at 3.6%)

- base solution Ph 12.0 (to simulate the conditions in contact with concrete)

In the experimental tests of immersion in the solutions described, the product displayed a change in average volume at 25 days not less than 190% in the case of salt water and reached a theoretical expansion greater than 1000% for demineralised water. The change in volume is calculated as (Vf•-Vi) /Vi (thus an expansion of 200% is equivalent to a triple final volume compared with the initial volume).

Upozorenja

Do not use RINGSEAL T­21 with spacers with outer diameter less than 23.5 mm. Further, spacers with protruding external ribbing cannot be used, as their non-circular shape does not allow the protective sealing to adhere to the outer surface of the spacer, making it ineffective.

In cases of expansion with very marked changes in volume (>500%), and in the absence of restrictive conditions, there may be some lacerations of the seal; these phenomena do not compromise the features that protect the protective sealing at all, and they especially do not occur under normal operating conditions, i.e. when the seal is inserted in confined spaces.Tehnički podaci i podaci o učincima navedeni u ovom dokumentu rezultat su laboratorijskog ispitivanja provedenog u kontroliranom okruženju te mogu pokazivati znatno drugačije rezultate od onih dobivenih pod drugačijim uvjetima na terenu. Nužno je provesti prethodne testove u stvarnim uvjetima primjene. 

Korisnik je obvezan provjeriti Tehničke listove sa sigurnosnim podacima i obratiti pozornost na podatke o fizikalno-kemijskim svojstvima, zatim toksikološke podatke, upozorenja i druge korisne informacije kao one o sigurnom transport, uporabi i odlaganju proizvoda i ambalaže. U tekstu se također podsjeća da se proizvod i ambalaža ni u kom slučaju ne smije odlagati u okoliš.