Installation

Preparation

As with all other types of paving start with a good foundation. If your application calls for vehicular access lay a sub-base of compacted MOT type 1 (or possibly hardcore) to 100mm-150mm in depth and cover it with a layer of 20-40mm deep layer of sharp sand. This must be compacted and flat before the sheets are laid. Paths and pedestrian areas can be laid on top of compacted sharp sand without a sub-base, again approximately 20mm-40mm in depth, again compacted and flat.

Laying

Place the honeycomb sheets over the prepared ground. The geotextile underside helps inhibit weed growth, and should be over-lapped at sheet joints. When two sheets meet up tuck one of the flaps under the sheet and place the sheets close together over the whole area. The honeycomb can be easily cut with a power or hand saw to meet the outer shape required. A larger number of sheets can be laid in minutes due to their light weight and ease of handling. The sheets do not require clipping together or fixing down.

Edging

The edge of the honeycomb area needs to be retained. This can be done using existing walls and buildings, stone setts, kerbs, timber, metal edging systems etc. The edging needs to be laid so that it is proud of the finished gravel level by at least 20mm.

Gravel

Lastly, the honeycomb is then filled with gravel to the top, with a further 10-20mm to conceal it. No rolling is required.

Important note: Avoid heavy loads on the unfilled honeycomb during installation.

Technical Data

Material	Polypropylene
Sheet Dimensions	2150 x 1140 x 40mm
Honeycomb Diameter	43mm
Weight	1.8 kg/m² (unfilled)
Strength at 20°C	300 tonnes filled
Drainage Capacity	100% Porous
Biological Resistance	Excellent
Chemical Resistance	Resistant to almost all chemicals
Thermal Properties	Resistant in temperatures from –40°C to +80°C
Weathering	UV Resistant
Incline	1:10

The Product

The Gravel Stabilisation System consists of polypropylene trays formed from hexagonal tubes. These are then laid on compacted ground and filled with gravel. The trays are backed with a fibreglass membrane, which inhibits weed growth and helps prevent gravel loss, whilst remaining free draining. The gravel compacts into the tray sections to form a solid surface.

The Gravel Stabilisation System is chemically inert, resistant against ageing, accidental chemical damage, microorganisms and rodents. It can also be recycled.

Geotextile Sheet

The porous geotextile applied to the underside of the sheet provides the following benefits:

• It prevents the gravel from getting beneath the sheets and eventually pushing them up.
• It prevents the gravel from sinking into the substrate under the influence of the loads on the paving, so that you no longer need to top up the gravel.
• It slows down root and weed formation.

Attention: weeds do not come out of the ground. Weeds are caused by seeds that fall onto the paving (birds, wind, etc.). In moist ground combined with calciferous stones, these seeds will germinate. Gravel, however, does not provide a good medium. The roots will concentrate in one honeycomb, as it is almost impossible for them to pass through the root sheet. In the next dry period, the weeds will die off as they will experience a sudden water shortage, because in combination with the honeycomb structure gravel drains water perfectly.

The geotextile on the base is larger than the actual sheet allowing for an overlap with the adjacent sheet.

Recommended Installers

Listed below are recommended installers of Cedagravel, please contact our marketing team if you require more information or if you would like to be included on this list.

South East
J Lawrence Landscapes Ltd
Midas Touch Landscapes
Oak View Landscapes Ltd
PA Spittles Landscapes Ltd
FT Gearing
Pro-Scape Ltd
Blakedown
Garden Designs and Landscapes
Ellis & Mays Landscape Contractors
Outdoor Creations
AC Eales Builders Ltd
Aralia Garden Design

London
Belderbos Landscapes
Hamilton Landscapes
AC Eales Builders Ltd
Landscaping Solutions Ltd

South West
City Gardens
MG Wale Landscapes
Aralia Garden Design

Midlands
Kingfisher Groundworks

North East
Brambledown Landscape

North West
Garden Inspirations

Scotland
James Hutchison Design

Ireland
Nature at Work