Trass-cement

Trass Cement For contemporary construction

Trass-cement: natural

Already the peoples of antiquity proved with the Construction of numerous magnificent buildings an architectural and building material knowledge of considerable extent.

In the Eifel, the Romans found a material volcanic rock, the trass, The The starting material for this is tuff stone, a volcanic ash natural stone that has solidified over the millennia. The Tuff was finely ground for mortar optimization used.

Summary: The application possibilities of Trass products are manifold. However, they are particularly suitable for problematic applications, such as renovation or restoration work. An important area of ​​application is the movement of natural stone materials. Trass-containing mortars are characterized by a slow, lasting over months, curing process.

Trass applications

The range of trasshaltiger binders and mortar has been expanded and optimized over the years. The Purpose of Trass products are manyHowever, they are particularly suitable for problematic applications.

For example, trassic Mortar and plasters for renovation or restoration work of historic buildings used. Special products based on trass and lime adapt to old masonry, but can still be efficiently processed with modern work equipment.

An important area of ​​application is also the movement of natural stone materials. Specific, coordinated natural stone mortar systems offer the highest possible Safety against staining and lime efflorescence.

The proportion of trass in the mortar requires a good stability and thus allows a speedy work. The internal friction in the fresh mortar is reduced by the proportion of trass. This results in a better compaction and a homogeneous structure of the mortar.

Trass-cement features

Trass has a high content of free silica, various minerals and chemically and physically bound water.

When mixed with hydrated lime or cement, Trass produces a binder with excellent mortar-technical properties. Trass has a dense molecular structure and therefore has a considerable resistance to environmental influences. The Tightness of the molecular compound formed in the trass-lime reaction also has another effect: the capillary pore space is narrowed so that the water migration is severely limited.

The transport of stain-forming substances is thereby largely prevented. However, the water vapor diffusion remains unimpaired. Another special feature of Trass is its high ability for lime binding, in which water-soluble lime is converted into a water-insoluble compound becomes. The liberated example in cement calcium hydroxide is bound to a large extent and therefore no longer reaches the plaster or rock surface.

That way is the Formation of lime efflorescence largely avoidable, An effect, especially in the Processing valuable natural stone materials or facade stones is desired.

Properties containing trassaceous building materials

Trasshaltige mortars are characterized by a slow, over months running hardening processwhich, inter alia, favors the reduction of stresses occurring, for example, in a still fresh subsoil.

The high Water retention helps the trass mortar to a greater smoothness while ensuring a lower moisture secretion. This results in a high surface quality and an optimal bond between the trass product and the substrate.

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