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  • Trass Trass


Quick Overview

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.

Due to it's weight, Trass cannot be shipped via a parcel carrier such as APC. Please do not select this option at checkout.

5% whole basket discount on orders over £500

7.5% whole basket discount on orders over £1000

(Excluding VAT & Delivery)

Availability: In stock

Incl. VAT: £14.70

If you are having any queries or difficulties, or for more information on products and pricing on larger orders, please call us on 01208 79779 and we will be able to answer any questions and take payment over the phone.


Properties and Benefits:

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
R.B.D. 1000 Kg/m3

Available in 40 Kg bags

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