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Sika Tard-930, Set Retarding/Stabilising Admixture

Sika Tard-930, Set Retarding/Stabilising Admixture

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SIKA

Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.

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General Specifications
Ambalare 200 L
Culoare liquid, colourless
Condiții de depozitare Protected from direct sunlight at temperatures between 5°C and 25°C. Use clean containers when delivered in bulk.
Densitate 1.2 kg/L
Valoare pH 3.0 +/- 1.0

Set retarding/stabilising admixture

SikaTard®-930 is an admixture in liquid form developed for the control of cement hydration. SikaTard® 930 stabilises concrete mixes without setting for extended periods and without negatively influencing their quality.

  • SikaTard®-930 blocks cement hydration. This is in contrast to other stabilisers or retarders, which only retard hydration of the cement.
  • The effect of SikaTard®-930 may be immediately stopped when Sika® Sigunit® is used as an accelerator. Thus hydration of the previously stabilised shotcrete will start immediately.
  • SikaTard®-930 does not contain chlorides or any other steel corrosion promoting materials. It can therefore be used in steel reinforced concrete construction without restriction.
Usage
SikaTard®-930 is can be used in a variety of materials including readymixed concrete and both wet and dry spray shotcrete, where cement hydration of the concrete mix is halted for a required amount of time. It is possible to retard/stabilise mixed concrete for a period of anything from hours to days.  
Advantages
  • SikaTard®-930 blocks cement hydration. This is in contrast to other stabilisers or retarders, which only retard hydration of the cement.
  • The effect of SikaTard®-930 may be immediately stopped when Sika® Sigunit® is used as an accelerator. Thus hydration of the previously stabilised shotcrete will start immediately.
  • SikaTard®-930 does not contain chlorides or any other steel corrosion promoting materials. It can therefore be used in steel reinforced concrete construction without restriction.
Packaging

200 litre drum, 1000 litre IBC
Colour

liquid, colourless