EP0584336B1 - Paving stone set - Google Patents

Abstract

PCT No. PCT/EP93/00507 Sec. 371 Date Nov. 9, 1993 Sec. 102(e) Date Nov. 9, 1993 PCT Filed Mar. 5, 1993 PCT Pub. No. WO93/18232 PCT Pub. Date Sep. 16, 1993.A concrete paving stone adapted to be disposed in circular and elongate paving configurations. The paving stone includes at least two side walls and a substantially planar upper face, each of the side walls being an arched side wall and including an elevated face at a center region thereof which comprises an abutting surface and two associated wedge surfaces adjoining the abutting surface on both sides thereof. The associated wedge surfaces extend from the abutting surface to an associated arched side wall. The elevated face further extends across a substantial portion of a length of the associated arched side wall and is effective for creating a fixed abutment between adjoining arched side walls of adjoining paving stones in a paving configuration.

Description

The invention relates to a concrete paving stone set according to the preamble of claim 1.

State of the art:

Concrete paving stone kits with different sizes of paving stones are well known. For example, a paving stone kit has become known from EP 0 185 861 B1, which has five different stone shapes in coordinated sizes, which are used to lay certain patterns. Due to their square or rectangular layout, these paving stones, like the paving stones from the German utility model GM 84 18 436, are used to lay surfaces in the so-called runners' association. As can be seen from FIG. 2 of the utility model mentioned, the stones are arranged offset from one another in rows lying next to one another, the stone width being partly kept in a grid dimension.

If you want to lay curves with these stone shapes, so-called curve stones or wedge stones, such as they are shown, for example, in German utility model DE GM 86 17 086 or in DE-OS 33 22 090. In utility model 86 17 086, a heptagonal center stone is used, around which the first row of wedge stones is placed. Instead of such a polygonal stone, a normal square or rectangular stone may also be used.

When laying larger circular shapes, rectangular stones or square stones are used in addition to the tapered stones from a certain radius, but these form gaps that open radially outwards between them. These open spaces between the stones are larger in stone molds with flat side walls than in stone molds with curved side walls. Stone shapes with curved or convex side walls can be pushed closer together at an inclination on the radially inner edge, so that the gap between the stones is smaller overall.

The use of stone shapes with straight or flat side surfaces therefore has the disadvantage that when square or rectangular cross sections are used in a circular arrangement, there are strongly opening gaps between the stones. This can be clearly seen, for example, in EP 0 227 144 in FIG. 11.

However, the use of flat side surfaces has the advantage that when the stones are laid in a straight line, the side surfaces are crunched against each other, so that a lateral hold of the stone forms against one another is ensured. Furthermore, the smallest gaps between the stones can be set for straight laying on flat side surfaces. After all, stones with flat side surfaces are easier to transport and stack.

In order to ensure a certain minimum distance between the stones with flat side surfaces, side knobs or elevations have become known, as has become known from EP 0 227 144 FIGS. 1 to 3. However, these knobs have the disadvantage that, like the stone shapes with cambered side surfaces, they do not or only poorly allow the stones to be stacked, since the stones lie against one another in a point-like or linear manner on their side flanks.

A paving stone set is also known from EP-A-0 285 567, which also has rectangular individual stones and so-called curve stones. In addition, each stone has flat spacers on at least 2 opposite surfaces, which allow adjacent stones to lie flat against one another. A disadvantage of this stone set is the lack of flexibility with regard to the laying of the individual stones both in the runner structure and in the form of a curve, since the spacers only abut one another in a certain position.

The invention has for its object to propose a concrete paving stone set, which does not have the disadvantages mentioned and in which in particular a stone set is created with which small gaps between the individual stones are also possible when laying curves or circles and both circular representations and representations in the group of runners . The stone set should consist of individual stones that are very easy to stack for transport. Finally, the stone set should be equipped with stones that convey a pleasing appearance with the desired technical requirements.

This object is achieved on the basis of a set of concrete paving stones of the type described in the introduction by the characterizing features of claim 1. Further details essential to the invention are given in the following subclaims.

Advantages of the invention:

The invention has the advantage over the known concrete paving stones or kits for concrete paving stones that a pleasing, optically beautiful-looking basic shape of the individual Paving stones with the appearance of curved, ie curved side surfaces is created, the paving stones behaving like paving stones with flat side surfaces during transport and laying. The advantages of lateral crowning, ie the possibility of tilting the individual stones against one another, as are made possible by the curved side surfaces, are nevertheless retained.

These measures, in conjunction with the selection of certain stone sizes, also allow circular surfaces to be laid, which ensure a high degree of lateral support for the individual stones against one another by means of flat abutting surfaces. This applies to both straight and curved installation patterns. Furthermore, the stone sizes and the stone shapes in the kit are matched to one another in such a way that a high degree of visual beauty is achieved, which is particularly true when laying curves.

Further details and advantages of the invention are shown in the following description in conjunction with the drawings.

Drawings: Show it:

1a-1e

the paving stone set in perspective in different sizes,

2a-2e

a plan view of the paving stones according to Fig. 1a - 1e,

3a-3c

three different circle stones,

4a-4c

3a to 3c in top view,

5a-5c

three exemplary views for a tilted laying of different stone shapes, FIGS. 5b and 5c showing stones known per se,

Fig. 6

the laying of a quarter circle,

Fig. 7

a laying example for a complete circle,

Fig. 8

an installation example for an L-pattern,

Fig. 9

a laying example for an S-pattern and

Fig. 10

an example of laying several circular shapes one inside the other.

Description of the invention:

The paving stone kit according to the present invention consists of the five cuboid paving stones 1 to 5 shown in FIGS. 1a to 1e, and the three curved stones or circular stones 6 to 8 shown in FIGS. 3a to 3c.

2a to 2e show the top views of stones 1 to 5 according to FIGS. 1a to 1e, and FIGS. 4a to 4c show top views of stones 6 to 8 according to FIGS. 3a to 3c.

The paving stone kit is built up in a basic grid dimension of length a ≈ 12.5 cm. The foundation stone is the one in Fig. 1a and 2a shown, in cross section square 1/1 stone with the side length a. All modified stone shapes according to FIGS. 1b to le or 2b to 2e as rectangular stones and FIGS. 3 and 4 as circular stones have at least one side surface in grid dimension a. This dimension is shown in the corresponding figures.

The cuboid stones according to FIGS. 1 and 2 are divided into 1/4 unit dimensions. The stone according to FIGS. 1b, 2b is therefore a 3/4 stone with the side length b = 3/4 a. The paving stone 3 shown in Fig. 1c, 2c is a 1/2 stone with the side length c = 1/2 a. The paving stone 4 in Fig. 1d and 2d is a 5/4 stone with the side length d = 5/4 a. The paving stone 5 shown in Fig. Le, 2e is a 1 1/2 stone with the stone length e = 6/4 a.

The circular stone 6 shown in FIGS. 3a, 4a is designed as a 90 ° stone, with the side length a and the included angle α ≈ 90 °. The circular stone 7 shown in FIGS. 3b, 4b also has a side length a and an included angle β ≈ 30 °. The circular stone 8 shown in FIGS. 3c, 4c has a side length a and an included angle γ ≈ 15 °.

The paving stone kit with the cuboid paving stones 1 to 5 and the curved stones 6 to 8 has a basic shape of the paving stones, which have curved or curved side walls 9, as can be seen in FIGS. 2a to 2e and 4a to 4c in plan view . Such cambered side walls are known for example from utility model GM 86 10 102, FIG. 5. This known stone shape is also shown in FIG. 5b of the present application as a top view of a stone shape, in contrast to the known stone shape according to FIG. 5c with flat side surfaces.

The upper, walkable surface 10 of the paving stones 1 to 8 is designed as a flat or at most slightly curved surface. The transition surface 11 between the upper surface 10 and the cambered side walls 9 is designed as a uniformly rounded phase 11. This is shown by the circumferential lines indicated.

The vertical edges 12 between the cambered side walls 9 are designed as rounded edges.

The stone shape described above results in a paving stone as shown in principle in Fig. 5b. If such known stones are placed next to one another in an abutting manner, they touch along a vertical line which, in plan view in FIG. 5b, appears as point 13 in the section of the lines of symmetry 14. When laying these stones, therefore, a restless group of runners arises, since the longitudinal lines of symmetry 14 often do not lie in one line, but instead form an obtuse angle. The axes of symmetry 14, 15 are therefore not parallel to one another, as is indicated in FIG. 5b.

If the known paving stone according to FIG. 5 c is laid with flat side walls 16 in a straight runner arrangement, the side walls are generally flat against one another, provided that they are not laid on a gap or with a joint. This results in particular when transporting such stones.

In order to obtain a flat abutting surface on the side wall even in the case of a cambered paving stone with arched side walls 9 of the paving stones 1 to 8, the paving stones according to the invention have polygon-like contact surfaces or abutting surfaces on their side walls. These polygon surfaces 17 on all cambered side walls 9 consist of an axially parallel for the stones 1 to 5 Butt surface 18 with the length f and the wedge surfaces 19 adjoining it on both sides with the lengths g. The total length of the polygon surface 17, consisting of the partial areas 18, 19, is denoted by h.

The total length h of the polygon surface 17 depends on the length of the cambered side wall 9. It extends almost or at least up to approximately 75% of the respective width of the cambered side wall 9. To the left and right of the wedge surfaces 19, a side wall part 20 remains from the side wall 9. This wall area has a length i. This remaining length 20 of the respective side wall a to e is used for better drainage in the case of paving stones laid in abutting manner over the surfaces 18.

The abutting surfaces 18 parallel to the axes of symmetry 14, 15 therefore serve as flat lateral abutting surfaces between the individual paving stones, the width f of this abutting surface taking up about 1/3 of the total length of the respective side wall 9. The remaining 2/3 of the total length are taken up by the two wedge surfaces 19 and the wall sections 20. This results in a large-area support between the stones both when laying and when transporting the stones.

The depth or thickness s with which the wall section 18 projects laterally beyond the convex wall 9 in the region of the axes of symmetry 14, 15 is measured at s ₁ ≈ 1.5 mm. Due to the crowning of the side surface 9, the polygon surface widens to a width s ₂ ≈ 2.5 mm despite the wedge-shaped kink with the surface sections 19. However, the polygon surface 17, consisting of the surface sections 18, 19, can also run largely parallel to the cambered side wall 9, although flat surface sections 18, 19 are present.

The cobblestones according to FIGS. 1 and 2 basically have on their cambered side walls 9 the rising polygon surfaces 17, consisting of the surface sections 18, 19. The corresponding dimensioning is shown as an example only in some stone shapes.

The height k of all polygon surfaces 17 also extends over at least 75% of the uniform total height m of all paving stones. The remaining upward dimension n with the surface section 9 'serves to hide the attached polygon surface 17 in the installed state, so that the paving stones seen from above basically convey the appearance of convex side surfaces 9.

Above the surface 18 there is a further flattened surface 31 arranged symmetrically in the surface section 9 ', the width of which, however, is only about 1/3 of the width g of the abutting surface.

The flat extension surface 18 also has the task of forming a natural spacer between the stones and thus of forming a natural joint. Such joint formers as attachment surfaces are known per se from EP 0 227 144. However, they either extend over the entire side surface or they are formed only by individual rounded knobs.

The curve or circular stones 7 to 9 according to FIGS. 3a to 3c or 4a to 4c do not differ in their basic structure with respect to the cambered side walls 9 with correspondingly attached polygon surfaces 17, consisting of the abutting surfaces 18 and wedge surfaces 19, from those previously described cuboid paving stones 1 to 5. The same applies to the rest of the construction of the curve stones 6 to 8 with a flat upper surface 10, a rounded transition surface 11 and rounded vertical edges 12. The cambered Side surfaces 9 in basic pitch a generally have a shape, such as the 1/1 paving stone 1 according to FIGS. 1a and 2a. Reference is made to the corresponding description of the side walls.

The design of the polygon surface 17 with a flat side surface 18 and wedge surfaces 19 is particularly suitable for the production of angular arrangements with a circular or arc-shaped laying of the paving stones. For this purpose, reference is made to the figures 5 to 7.

As mentioned in the introduction to the description, paving stones with a rectangular or square cross-section are sometimes also used for laying curved laying patterns. According to the representation in EP 0 227 144 FIGS. 10 and 11 and a corresponding representation in FIG. 5c of the present application, a paving stone with flat side walls 16 already produces a relatively large opening angle δ ₁ with a slight tilting of the symmetry axis crosses 14, 15. The abutting stones touch each other on a line contact, the top view of which shows point 21. Apart from the fact that this gives the laid surface a less appealing appearance, a large space 22 is created on the opposite side, which can partially severely impair the accessibility of the surface. The linear contact surface 21 can also damage the stone, particularly in the edge area. Such paving stones with flat side walls 16 are therefore very poorly suited for inclusion in a curved course. This can also be seen from the cited figures 10 and 11 of EP 0 227 144.

Choosing a stone shape with a convex, ie rounded side wall as shown in Fig. 5b because of the curved side wall, the upper opening angle δ ₂ is larger than in the illustration according to FIG. 5c, even when the axis cross 14, 15 is tilted slightly. Here, too, there is a linear contact of the stones at point 13 ', ie in an off-center position. If the axes of symmetry 14, 15 of the two stones are tilted further apart, the upper angle δ _{2 increases} even further while the lower angle δ _{3 is} reduced.

The effective accessible upper surface 10 is also determined by the degree of the rounding of the transition surface 11. The stone shape in FIG. 5c with the flat side walls 16 in the corner areas shows a greater interruption A + B of the upper tread surface due to the greater phase formation of the transition surfaces 11. In FIG. 5b, the interruption A + B + C of the tread surface is too absolute seen lower values. This follows from the smaller phase formation of the transition surface 11.

5a shows a paving stone arrangement according to the present invention in a tilted position, ie the axes of symmetry 15 form an angle to one another. Due to the additional polygonal surface 17, the two stones 23, 24 also come into contact in an angular position in the area of the wedge surfaces 19. If the wedge surface 19 itself is subdivided into polygon-like sections, different angle settings of the tilted stones can also be produced without difficulty , with an areal butt surface between the respective stones. The interruption A + B + C of the tread surface 10 is reduced to a minimum value due to this arrangement with the polygon surface 17, ie the gap between the stones can be kept very small. The same applies to the opening angle δ ₄ .

With the paving stone according to the invention, a flat support or abutting surface of the paving stones with respect to one another is therefore achieved within wide limits even when laying curves. The optically advantageous cambered side walls 9 are basically retained in their shape.

FIGS. 6 and 7 show the arrangement of the various paving stones in the case of a circular laying and are explained below. The full circle in FIG. 7 basically represents a composition of the quarter circle according to FIG. 6.

To form a quarter circle as shown in FIG. 6 with the paving stone kit according to the invention, eight different rows are first formed, which are designated by 1 to 8 in a circle in FIG. 6. Since the quarter circle covers an angle of 90 °, the 90 ° stone 6 according to the invention is initially provided as the center stone with the "row 0". This stone is shown in more detail in Fig. 3a, 4a. The center stone is therefore not only a normal square stone, but a specially adapted 90 ° stone.

All subsequent circular rows 1 to 7 up to a circular diameter of approximately 2.0 m are formed by an odd number "N" of individual stones. This gives an excellent visual impression.

In the first row "1" (first circle segment) there are accordingly three "inner circular stones" 7 with an opening angle β ≈ 30 °, as shown in FIGS. 3b, 4b. The use of three inner circle stones 7 covers an arc angle of approximately 90 °.

In the following row "2" five "outer circular stones" 8 are used, which have an opening angle γ ≈ 15 °. Optimizing this stone gives an opening angle γ = 15.25 °.

The stones are offset from row "1" so that the joints are at least partially covered by the inner circle.

The next row "3" is formed by seven outer circular stones 8. The subsequent row "4" is formed by five outer circular stones 8 and four 3/4 stones 2, as shown in Fig. 1b, 2b. From row "4" onwards, parallelepiped-shaped stones are also used, which are set at a certain inclination, for which purpose in particular the lateral polygon surfaces 17 are used.

In the row "5" six outer circular stones 8 and five 3/4 stones 2 are provided. In the following circle 6, seven outer circular stones 8 and six 3/4 stones 2 are provided.

In the following circle or the following row "7" there are no circular stones or curve stones, but only fifteen 3/4 stones 2 arranged next to one another. Up to row 7, the sum N of the number of stones in each row is a consecutive odd number (see column "N" in FIG. 6). From the following row "8" there are thirteen normal stones, i.e. H. 1/1 stones 1 are provided, as shown in Fig. La, 2a. All subsequent rows can be built with this stone as well as in combination with other stones from the kit.

All rows of stones have the side length a as the basic grid dimension. As can be seen from Fig. 6, the rows "2", "4" and "5" are mutually offset such that they are on one side protrude beyond the 90 ° angle, which, however, compensates for a complete circle according to FIG. 7.

The circle representation according to FIG. 7 is basically composed of four quarter circles according to FIG. 6. According to the following table, however, normal stones, ie 1/1 stones, are also used in the circles or rows "4 to 6" for a more pleasing visual representation of the circular pattern. Quarter-circle structure (Fig. 6) District 0: a center stone 6 O 25 CM District 1: three inner circle stones 7 O 50 CM District 2: five outer circle stones 8 O 75 CM District 3: seven outer circle stones 8 O 100 CM District 4 five outer circle stones 8 four 3/4 stones 2 O 125 CM District 5: six outer circle stones 8 five 3/4 stones 2 O 150 CM District 6: seven outer circle stones 8 six 3/4 stones 2 O 175 CM District 7: fifteen 3/4 stones 2 O 200 CM District 8: thirteen normal stones 1 O 225 CM Circular structure (Fig. 7) District 0: four center stones 6 O 25 CM District 1: twelve inner circle stones 7 O 50 CM District 2: twenty outer circle stones 8 O 75 CM District 3: twenty eight outer circular stones 8 O 100 CM District 4: eighteen outer circle stones 8 O 125 CM sixteen 3/4 stones 2 two normal stones 1 District 5: twenty-two outer circular stones 8 O 150 CM twenty-two 3/4 stones 2 2 normal stones 1 District 6: twenty six outer circular stones 8 O 175 CM twenty-two 3/4 stones 2 four normal stones 1 District 7: sixty-two 3/4 stones 2 O 200 CM District 8: fifty-two normal stones 1 O 225 CM

6 and 7, the 90 ° stone 6, the two circular or curved stones 7 and 8, and the 3/4 stone 2 and 1/1 stone 1 can therefore be used. The other stones of the paving stone kit, namely the 1/2 stone 3 as well as the 5/4 stone 4 and the 1 1/2 stone 5 are mainly used for laying surfaces in the group of runners.

FIGS. 8 and 9 show examples of the combined installation. FIG. 8 shows an L-shaped laying of the paving stones with a quarter circle according to FIG. 6 and two adjoining areas in the group of runners. FIG. 9 shows the stringing together of two quarter circles according to FIG. 6 with two subsequent connections in the group of runners. In these figures, some stones are shown by way of example according to the numbering according to FIGS. 1 to 3.

10 shows an illustration of circular shapes which merge into one another.

According to the present invention, the advantages of the known paving stone with cambered side walls are further developed in such a way that a correct laying of the different stone shapes with an always present surface contact is made possible instead of the previous linear contact. This is done in particular by maintaining the cambered basic shape of the side walls with the attached polygon-like surfaces 17, which form contact surfaces or abutment surfaces and also form spacers for the formation of joints. The polygon surface extends over the largest part of the respective side wall and thus forms side abutting surfaces.

As can be seen from FIGS. 3a to 3c and FIGS. 4a to 4c, the circular stones or curved stones 7 to 8 also have additional surface sections 25 to 29 on their outer (circular stone 6) and on their inner (circular stone 7, 8) arc surfaces 32 to 36 which, like the polygonal surfaces 17 of the cuboid paving stones, stand out from the curved side walls. These surface sections 25 to 29 also form flat surfaces which are designed in accordance with the abutting surface 18. In the case of the 90 ° stone 6, three symmetrically arranged surface sections 25 are provided over the angle of 90 °, each of which form flat abutting surfaces 18 '. The angular range of these abutting surfaces is approximately ε ₁ = 20 °.

Likewise, the 30 ° circular stone 7 has two surface sections 26 provided on the outer arch 33 with a flat abutting surface 18 '. The angular range corresponds to ε ₂ = 10 °.

The surface section 27 of the circular stone 7 lying on the inner circular arc 30 covers an angular range of ε ₃ = 20 °. The attached surface section 27 also has a largely flat abutting surface 18 '.

The circular stone 8 shown in FIGS. 3c, 4c with an opening angle γ has on its outer arcuate surface 35 the surface section 28 which is constructed similarly to the polygon surface 17 of the cuboid stones. Accordingly, a central abutment surface 18 'and two wedge surfaces 19' attached to it laterally are provided, which extend largely over the entire arc 35. As can be seen from FIG. 4c in a top view of the circular stone 8, the middle, flat abutting surface 18 'extends over a large angular range ε ₄ = 1/3 γ. The two wedge surfaces 19 'adjoining this laterally are largely designed as flat connecting surfaces.

In the inner arch region 36 of the circular stone 8 is the surface section 29, which extends as a flat abutting surface 18 'largely over the entire arch region.

The surface sections 25 to 29 also serve as flat stop surfaces and as a spacer when laying the paving stones according to the invention. The same applies to the transport of these paving stones, which can be easily packaged with their flat abutment surfaces and thus transported.

In the curve stones 6 to 8, the side length a of the respective side walls 9 is measured from the dimension of the tangents to the abutting surfaces 18 '.

The 90 ° stone 6 has a dummy joint 37 in its upper area, which visually simulates a division of the stone.

The invention is not restricted to the exemplary embodiments shown and described. Rather, it also encompasses all professional developments and improvements as defined by the wording of the appended claims.

Claims (13)

1. Concrete paving stone set for producing circular and/or straight layouts for paving gardens, paths or the like, in which the side walls (9) of stones that are rectangular, quadratic and/or circular in plan view are designed as convex or rounded surfaces (9) and the upper surfaces (10) are designed to be mainly flat surfaces, characterised in that laterally protruding additional walls (17) are provided on adjoining convex side wall (9) of adjacent stones (1 to 8), which are formed in rectangular or quadratic stones (1 to 5) by an even middle surface (18, 18') running parallel to the plane of symmetry (14, 15) and connecting surfaces (19, 19') that are wedge-shaped in plan view on both sides thereof, whereby the additional walls (17) in plan view of the stones have a polygonal, convex path and both the middle surface (18, 18') and the wedge-shaped connecting surfaces (19, 19') are designed in length (f, g) so that they form an effective flat side wall support for adjacent stones.
2. Concrete paving stone set according to claim 1, characterised in that the middle surface (18, 18') and the wedge-shaped connecting surfaces (19, 19') on either side extend across almost the entire width (a - e) of the respective side walls (9) of the stone (1 to 8) and are designed in particular as graduating, flat or slightly curved walls (17) forming a polygonal line.
3. Concrete paving stone set according to claim 1 or 2, characterised in that in a plan view of the stones the width (f) of the middle surface (18, 18') is the same as or greater than the width (g) of the adjoining wedge-shaped surfaces (19, 19').
4. Concrete paving stone set according to one of the preceding claims, characterised in that the wall (17) of each convex side wall (9) projecting to the side in plan view is positioned at a distance (n) from the upper flat surface (10) of the paving stone (1 to 8) so that a step that is not visible in a laid position is formed between the upper convex wall part (9') of the respective side wall (9) and the respective projecting wall (17).
5. Concrete paving stone set according to claim 4, characterised in that the convex wall part (9') lying above the middle surface (18, 18') is designed in its middle region as a flattened surface (31).
6. Concrete paving stone set according to one of the preceding claims, characterised in that on opposite convex side walls (9) of paving stones (1 to 5) that are rectangular or quadratic in cross section and/or on opposite side walls (9) of circular stones (6 to 8) at least one wall (17) is provided that in plan view is arranged symmetrically and projects to the side.
7. Concrete paving stone set according to one of the preceding claims, characterised in that the circular stones (6 to 8) on their curved outer and/or inner surfaces (32 to 36) have one or more radially projecting, preferably flat surfaces (25 to 29) as side wall supports.
8. Concrete paving stone set according to one of the preceding claims, characterised in that a 90° centre stone (6) has a groove (37) on its upper surface as a false joint dividing the angle into two.
9. Concrete paving stone set according to one of the preceding claims, characterised in that the depth (s) of the laterally projecting walls (17) in the region of the middle surface (18) is s₁ ≈ 1 mm in the region of the symmetry midline (14, 15) and s₂ ≈ 2.5 mm at the side end of the surface.
10. Concrete paving stone set according to one of the preceding claims, characterised in that the total width (h) of the wall (17) on the convex side walls (9) is h ≈ 0.7 to 0.9 mm x side length (a to e).
11. Concrete paving stone set according to one of the preceding claims with a 1/1 stone (1) in a predetermined modular dimension (a) and an associated ½ stone (3), a 1 ½ stone (5) and at least one circular stone (6, 7, 8) that is wedge-shaped in plan view, whereby to produce a circular 90° pattern or a plurality thereof a wedge-shaped 90° circular stone (6) in the centre, an adjoining inner wedge-shaped circular stone (7) with an opening angle β ≈ 30° and an adjoining outer wedge-shaped circular stone (8) with an opening angle γ ≈ 15° are provided each with a radial edge length ("a") and the circular pattern is formed also with ¾ stones (2) and 1/1 stones (1) in radially subsequent circular segments of the edge length (a).
12. Concrete paving stone set according to claim 11, characterised in that the stone set, in particular when laid straight comprises a ½ stone (3) and/or a 5/4 stone (4) and/or a 1 ½ stone (5), whereby all the stones have at least one equal edge length (a).
13. Concrete paving stone set according to one of the preceding claims, characterised in that the paving stones (1, 2, 6, 7, 8) in a ¼ circle pattern are laid at least up to row 7 in uneven numbers N=0, 1, 3, 5, 7, 9, 11, 15.

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