Paving Stones Used For Covering in accordance with O NORM B3180

Usage:

For shaping squares, pedestrian zones, parks, draining, edge-marking stripes, ditch coverings, garage entrances, front square shaping, roads leading to home entrances, all types of highly-loaded transport areas, double small paving stones and also used for covering of gutters and big channels.

Processing of stones used for pavement covering:

Split, the front areas must be almost with the lower area, the side areas at a are acceptable according to the follow-right-squared and if possible in parallel right angle to the front area, deviations ing grading of classes.

Sort

type

Trade label

Width cm

Weight cm

length cm

Ш2Д

Reception according to weight

Small paving stones

HI

6/81

6...S

5...9

6...8

6,5

6/8II

5,5...8,5

4,5...9,5

5,5...8,5

H2

8/101

8...10

7...11

8...10

5,0

8/10 II

7,5...10,5

6,5...11,5

7,5...10,5

H3

10/12 I

10...12

9...13

10...12

4,2

10/12 II

9,5...12,5

8,5...13,5

9,5...12,5

Mosaic(marbled) stones

H4

Mosaic

3...6

3...6

3...6

9,0

Double small paving stones

 

 

H5

Channel building stones

10...12

9...13

20...24

4,2

First Class from HI to H4:

The sizes of the different stones must be within the specified limit values. Maximum 10 % of the total number to be delivered as the so called "semi-stones" (width less than the limit size, the lower limit, equal to half the width of the stone; stones with front trapezium-shaped area can be delivered up to maximum 15% of the total number.

The lower surface can be less bigger than the upper one (up to a correlation: 3:5).

The split surfaces must be even, the differences between bulges and hollows to be 7 mm max.

The colour and the structure must be unified.

 

Categories (classes) II (H1 to H3):

The sizes of the different pavement stones must be within the limit values. A maximum of 15% of the total number can be as the so called "semi-stones" (width less than the limit value, the lower limit equal to half the width of the stone).

A maximum of 25% of the total number can be stones with trapezium-shaped upper surface. The lower surface can be less bigger than the upper one (up to a

Correlation of 3 : 5). The split surfaces must be even if possible, with no differences between the heights of bulges and hollows- max. 10mm.

Differences in colour and structure are allowed. For type H5 there isn't an established differentiation between the classes, so the sizes from Table 4 must be observed.

The side surfaces can be at a lower angle of a 2cm max. The split surfaces even if possible, with differences between the heights of bulges and hollows 7 mm max.

Differences in colour and structure are allowed.