The pavement of a concrete block pavement consists of unreinforced paving stones and the associated supplementary stones. These are poured from cement-bound concrete in the concrete plant.
Application:
Structure: Usually two-layer structure with load-bearing core concrete layer and facing layer on the top of the paving stone. The facing layer determines the surface appearance and feel of the paving surface and must have a minimum thickness of 4 mm in accordance with DIN EN 1338. The concrete of the facing layer can be coloured or supplemented with crushed natural stone (chippings) to improve surface properties such as abrasion resistance, slip resistance or aesthetics. Concrete additives make the concrete paving stone resistant to frost and de-icing salt.
Surfaces: The surfaces can be functional or decorative and the appearance can be designed by means of structuring, processing or chemical treatment.
Properties: Wide variety of shapes and colours, usually high slip resistance, cost-effective.
Types: Concrete paving stones are offered in a variety of variants and formats. In addition to classic square and rectangular formats , polygonal composite paving is used, which interlock with each other due to their geometry in order to make displacements more difficult when the load is applied. Numerous supplementary bricks for connection to boundary surfaces, e.g. so-called bishop's caps, are available depending on the laying pattern used. Regardless of the format, concrete block pavers made of porous concrete are also offered, which have a certain water permeability due to their low concrete structure. They are used to enable rapid drainage of surface water, especially in areas where surface water is to seep away below the pavement surface in a targeted manner ("eco-pavement"). Their compressive strength is lower than that of structure-tight concrete paving stones.
Regulations: Structural densities Concrete paving stones or kerbstones are regulated in DIN EN 1338 or DIN EN 1340, paving stones made of concrete with porous debris are subject to DIN 18507.
Source: bauwion
