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Description of paving stones
Advantages of paving with ceramic paving stones
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Description of paving stones

Shape
Ceramic paving stones can be of any shape that enables them to be placed in a repeated pattern, they are normally rectangular.

As shown in figure 1 and 2, they can be bevelled in one or several of their facing edges (forming the facing surface).

PFor flexible paving, paving stones can be supplied with spacer lugs on one or more sides, which will always be in the vertical position when used.


Paving stone with spacer lug

For rigid paving, paving stones should not have spacer lugs, they should be rectangular or another shape to enable them to be placed in combination with others, separated by a 10 mm mortar joint.


Paving stone without spacer lug

Nominal dimensions
For flexible paving, the nominal thickness of the part should not be less than 40 mm. and the nominal dimensions will be such that the ratio between the total length and width is not more than 6.

For rigid paving, the thickness of the part should not be less than 30 mm.

If the part is bevelled on one or several facing edges measuring over 7mm in width or depth, the manufacturer should inform this. This limitation in the size of the bevel avoids joints that are too wide to be formed.

Dimensional tolerances
Specification of dimensional tolerances is not applied to special parts (accessories).

  • Average value
    For a certain dimension, the average value of a sample of 10 parts should not deflect from the nominal dimensions given by the manufacturer by more than, rounding up to the nearest mm, d being the nominal dimension expressed in mm.
     
  • Range
    The manufacturer will refer to one of the two classes of table 1 to indicate the difference between the larger and smaller measurement of any dimension of the sample of 10 paving stones.

Table 1.  Dimensional range.

Class Range class (not greater than) mm
RO Not determined
R1 0,6

Note: The collection of samples and the procedure to determine the dimensions are described in appendix A and B respectively of standard UNE EN 1344:2002.

Aspect
With paving stones it is possible to achieve highly attractive surroundings, as a result of the wide range of colours and textures typical of clay products.

Their colours remain permanent over time, and they can be placed in a variety of ways. In some cases the surface to be treated does not have to be the final surface, parts can be easily replaced and therefore it is possible to completely change the appearance of the surroundings.

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