Trass Pozzolan

From£6.00 + VAT

Trass Pozzolan

From£6.00 + VAT
Trass is a pozzolan that can be added to mortars to reduce capillarity without impacting too much on vapour permeability.

Trass

Description:

Trass is a natural pozzolan that has seen widespread use throughout northern Europe for hundreds of years, creamy beige in colour it’s a well-known Pozzolan derived from volcanic tuffs sourced from the Rhine Valley in Germany. Similar to the volcanic pumices and tuffs from Pozzuoli, the material established by the Romans.

  • Good resistance in salt laden environments
  • Lowers capillarity without impacting too much on vapour permeability
  • Medium pozzolanic index
  • 100% natural material
  • The addition rate in lime mortars is advised at 10 to 20% by volume of the binder.
  • Pure Trass produced in accordance with DIN 51043
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