Bonded construction method

Installing with drainage mortar


The non-bonded construction method of paving tiles and slabs involves fitting the covering without using any binder agents to bed the cover in nor any grouting. The search for a construction method that would make the covering  to be more resistant and wear-and-tear-proof eventually lead to the so-called bonded construction method. It involves using binder agents for the bearing layer, embedding and in the joints.

When installing the bedding course a uniform layer thickness must be produced. It should be at least 3 cm thick. Depending on the thickness of the stone to be laid and the loading it can be increased up to 7 cm.  Equally, the necessary gradients cannot be produced with the bedding course, but must be produced beforehand.

The paving layer is either laid fresh on fresh or is bonded with the bedding course afterwards.  

Expert Tip:

The guideline 5-21-09 of the Wissenschaftlich-Technischen Arbeitsgemeinschaft für Bauwerkserhaltung und Denkmalpflege outlines the technical requirements for restoration render systems.

1

Mixing up the mortar in a compulsory mixer.

2

Rear-side wetting of the installation material with the bonding slurry.

3

Tapping in the paving material.

4

Wetting the complete rear side of the tile or slab.

5

Rear-side wetting of the installation material with the bonding slurry.

6

Tapping in the paving stones.

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