GB2360309A

GB2360309A - Method and apparatus for edging a hardstanding surface

Info

Publication number: GB2360309A
Application number: GB0005962A
Authority: GB
Inventors: Garry David Ridge
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-14
Filing date: 2000-03-14
Publication date: 2001-09-19
Also published as: GB0005962D0

Abstract

The method comprises the step of edging a pre-laid hardstanding surface 30 with kerb 10. A trench 33 is dug around outer edge of the hardstanding surface 30 and lined with mortar 34 to bed the kerb 10. The kerb 10 is manufactured from a cementious material and comprises an overhang 12 with flat underside 13, the kerb 10 is positioned against the hardstanding surface 30 such that the overhang 12 resides on the upper surface of the hardstanding surface 30. When correctly positioned the kerb 10 is secured by haunching and the remainder of the the trench 22 can be filled with topsoil. The kerb may be curved and also comprise drainage recesses [47, fig 6].

Description

2360309 Edging This invention relates to a method of edging a hardstanding

surface and to an edging component for use in such a method.

There are many types of edging for hardstanding surfaces. However, the most common types are "half battered", "bull nosed", "splayed" and "square". These types are most frequently seen between pavements and road surfaces in Britain. Other types are found on driveways and patios.

GB-A-2 172 639 discloses a kerb edging block formed with an internal shoulder located at each of a first pair of opposed edges. In use, a pavement extends into the upper shoulder and a road surface extends into the lower is shoulder. The kerb Is interlocked between the pavement and the road.

Many driveways and patios, for example, are built by homeowners in the current fad for "DIV'. Unfortunately, many such homeowners are unaware of the need to set up the edging of the new drive or patio before laying the hardstanding. Accordingly, many driveways and patios have to be re-laid or are simply left without edging altogether. It Is expensive to re-lay a driveway, and a driveway without edging has a much reduced life expectancy. In addition such drives tend not to look attractive.

Another difficulty that many homeowners encounter is achieving a good finish to a curved patio or driveway. As many pavers come in square or rectangular shapes, a cutter such as an angle grinder has to be used to cut the paver to the necessary finish. However, many homeowners lack the experience to use such apparatus and simply compromise with an inferior finish.

The present invention aims to alleviate the aforementioned dif f iculties.

According to the present invention there is provided a method of edging a hardstanding surface, which method comprises the step of edging after said hardstanding surface has been laid.

Many hardstanding surfaces which haven't been properly edged begin to tire at the edges after a short period. One popular solution is simply to install edging and to re-lay the entire surface, even though the main area of hardstanding is still in good repair. Edging components In accordance with the present invention can be laid around the existing hardstanding surface, saving time and expense. Advantageously, said method further comprises the step of removing any earlier laid or damaged edging. is Where edging has become worn or damaged, it is possible to replace the edging without having to re-lay the hardstanding. Preferably, said method further comprises the step of forming a trench to accommodate the edging. 20 This removes any disintegrating hardstanding and prepares a suitable edge. Advantageously, said method further comprises the step of laying mortar in said trench. Preferably, said method further comprises the step of haunching said edging.

According to another aspect of the present invention there is provided an edging component for use in a method according to the invention, which edging component comprises an overhang, the arrangement being such that, in use, said overhang resides over part of the upper surface of said hardstanding.

One advantage of such a component is that a margin of error is provided for in the construction of the hardstanding. As long as the hardstanding is constructed within the margin of error, a good edge f inish can be 3 obtained. A further advantage is that, f or those homeowners who have forgotten to lay edging first, such components can be used without having to re-lay the entire surf ace. 5 Advantageously, said edging component is formed integrally from cementitious material. If desired, said edging component may be formed from two or more pieces.

In one embodiment, said edging component is substantially straight.

In another embodiment, said edging component is substantially curved.

In another embodiment, a portion of said edging component is substantially straight and a portion of said edging component is substantially curved.

Preferably, said edging component further comprises a drainage recess.

Advantageously, said drainage recess is located in said overhang.

Preferably, the depth of said overhang is between 30mm and 10Omm, preferably 60mm.

Advantageously, the height of said overhang is between 30mm and 10Omm, preferably 60mm.

Preferably, the length of said edging component is between 25Omm and 50Omm, preferably 375mm.

Advantageously, the height of said edging component is between 10Omm and 30Omm, preferably 20Omm.

Preferably, wherein the depth of said edging component is between 10Omm and 20Omm, preferably 15Omm.

Advantageously, said overhang comprises a first surface and a second surface having and angle therebetween, which angle is between 30' and 60', preferably 45'.

For a better understanding of the present invention reference will now be made, by way of example, to the accompanying drawings, in which:

Fig. 1 is a perspective view of a first embodiment of a kerb in accordance with the present invention; Fig. 2 is an end view of the kerb in Fig. 1; Fig. 3 is a perspective view of a second embodiment of a kerb in accordance with the present invention; Fig. 4 is an end view of the kerb in Fig. 3; Fig. 5 is cross section through. a kerb in accordance with the present invention, in use; and Fig. 6 is a side view of a third embodiment of a kerb in accordance with the present invention.

Referring to Figures 1 and 2 there is shown a kerb is which is generally identified by reference numeral 10. The kerb 10 comprises a main body 11 and an overhang 12 which are conveniently constructed integrally by hydraulic pressing of a cementitious material. The main body 11 is substantially rectangular with the overhang 12 projecting outwardly from one corner. The overhang 12 comprises a flat underside 13, an upright portion 14 and a bevelled surface 15. The kerb 10 has a flat front face 16 under the overhang 12. The bevelled surface 15 forms an angle with the flat underside 13 of 45'. The depth of the underside 13 is 60mm and the height of the overhang 12 is 70mm. The length of the kerb 10 is 50Omm.

Referring to Figures 3 and 4 there is shown a kerb which is generally identified by reference numeral 20. The kerb 20 comprises a main body 21 and an overhang 22 which are conveniently constructed integrally by hydraulic pressing of a cementitious material. The main body 21 is substantially rectangular with the overhang 22 projecting outwardly from one corner. The overhang 22 comprises a flat underside 23 and a curved portion 24.

The curved portion 24 has a radius of curvature of 60mm.

The depth of the flat underside 23 is 60mm and the height of the overhang 22 is SOmm. The length of the kerb 20 is 2 5 Omm.

Referring to Fig. 5 the kerb 10 edges a hardstanding surface 30. The hardstanding surface 30 comprises a layer of asphalt 31 which overlays a layer of hardcore 32. The hardstanding surface is in place before the kerb 10 is laid. To lay the kerb 10 a trench 33 is dug around the outer edge of the hardstanding surface 30. This is to ensure that the flat front face 16 of the kerb 10 can be pushed close to the inner edge of the trench 33. The trench 33 is lined with a layer of mortar 34 and the kerb bedded so that it projects above the height of the hardstanding surface 30 so that the overhang 12 overlays a portion of the hardstanding surface 30. When the kerb has been adjusted to the correct position lt can be more securely held in place by haunching, as shown. The remainder of the trench 33 can then be f illed in with topsoil, for example.

The overhang 12 helps to protect the edge of the hardstanding surface 30, and also provides a decorative feature.

Referring to Fig. 6 there is shown a kerb which is generally identified by reference numeral 40. The kerb 40 is generally similar to the kerb 10, like numerals indicating like parts. However, the kerb 40 further comprises a series of drainage recesses 47 in the underside 43 of the overhang 42. In use, the drainage recesses 47 allow water to pass below the kerb and drain away.

Either of the kerbs 20 and 40 may be laid as described above with respect to Fig. 5.

It will be appreciated that various modifications could be made to the embodiments described above. For example, the kerbs may be curved or part straight and part curved. The overhang may be curved or part straight and part curved. The overhang could be designed to give any aesthetic feature desired.

Any of the kerbs may be constructed in more than one part.

Whilst the kerbs have been described as being laid after laying a new hardstanding surface, it will be appreciated that any of the kerbs described above could be used to replace existing kerbs which have become worn or damaged. As a new hardstanding surface does not have to be laid, time and expense can be saved in this manner.

The term 11hardstanding surfaCel' as used herein is not limited to that described in the embodiments above. The term is intended to include any surface which may be edged, for example: driveways, patios, pavements and road surfaces. It also includes surfaces formed by pavers, flags and stones as well as concrete and macadamed surfaces.

The dimensions of the edging component may vary according to the anticipated duty, for example light domestic, heavy domestic, pedestrian, light vehicle and heavy vehicle. It is anticipated that, depending on the duty the overall height of the edging components will vary from 10Omm to 30Omm, with 150rmn to 20Omm being more usual. The depth of the overhang will typically be from 30mm to 10Omm, with SOmm to 75mm being typical. The height of the overhang will also typically be from 30mm to 10Omm, with SOmm to 75mm being typical. In the case of a bevelled edging component such as shown in Figure 1 the bevelled surface preferably makes an angle of between 300 and 600 with respect to the horizontal, with 400 to SO' being preferred.

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Claims

Claims:

1. A method of edging a hardstanding surface, which method comprises the step of edging after said hardstanding surface has been laid.

2. A method as claimed in Claim 1, further comprising the step of removing any earlier laid or damaged edging.

3. A method as claimed in Claim 1 or 2, further comprising the step of forming a trench to accommodate said edging.

4. A method as claimed in Claim 3, further comprising the step of laying mortar in said trench.

5. A method as claimed in Claim 4, further comprising the step of haunching said edging.

6. An edging component for use in a method as claimed in any preceding Claim, which edging component comprises an overhang, the arrangement being such that, in use, said overhang resides over part of the upper surface of said hardstanding.

7. An edging component as claimed in Claim 6, wherein said edging component is formed integrally from cementitious material.

8. An edging component as claimed in Claim 6, wherein said edging component is formed from two or more pieces.

9. An edging component as claimed in any of Claims 6, 7 or 8, wherein said edging component is substantially straight.

10. An edging component as claimed in any of Claims 6, 7 or 8, wherein said edging component is substantially curved.

11. An edging component as claimed in any of Claims 6, 7 or 8, wherein a portion of said edging component is substantially straight and a portion of said edging component is substantially curved.

12. An edging component as claimed in any of Claims 6 to 12, further comprising a drainage recess.

13. An edging component as claimed in Claim 121 wherein said drainage recess is located in said overhang.

14. An edging component as claimed in any of Claims 6 to 13, wherein the depth of said overhang is between 30mm and 10Omm, preferably 60mm.

15. An edging component as claimed in any of Claims 6 to 14, wherein the height of said overhang is between 30mm and 10Omm, preferably 60mm.

16. An edging component as claimed in any of Claims 6 to 15, wherein the length of said edging component is between 25Omm and 50Omm, preferably 3 7 Snun.

17. An edging component as claimed in any of Claims 6 to 16, wherein the height of said edging component is between 10Omm and 30Omm, preferably.20Omm.

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18. An edging component as claimed in any of Claims 6 to 17, wherein the depth of said edging component is between 10Omm and 20Omm, preferably 150mm

19. An edging component as claimed in any preceding Claim, wherein said overhang comprises a first surface and a second surface having and angle therebetween, which angle is between 30' and 60', preferably 45'.