Permeable Gravel Surfaces | Resin Bound Gravel - Resin Bound, SuDS Compliant Paving

DCM Surfaces Resin Bound Gravel offers a variety of aggregate particle sizes and colours.

Resin Bound Gravel is fully coated with a chemically curing resin and blended using a forced action mixer. This clear, UV-stable and flexible resin delivers a seamless finish when troweled.

Features and benefits:

• Durable, UV stable, sustainable (SuDS) and crack resistant.
• Highly permeable mixes suitable for tree pits, patios, poolsides and more.
• Customisable designs for heavy-load tolerance.
• Tailored mixes to meet specific conditions and specifications.
• Guaranteed no loose stones due to the smooth finish.
• Low-energy, cold-applied process with low emissions from non-volatile components.
• Average curing time for pedestrian traffic: 6–12 hours.
• Average curing time for vehicular traffic: 14–24 hours.
• Suitable for installation in temperatures as low as 0ºC, unaffected by light rain and damp surfaces.
• Delivers a seamless finish as it is hand-laid
• Suitable for both indoor and outdoor use.

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FAQ's

Q. What is the difference between resin bound gravel and bonded gravel?

Bound gravel has a smooth texture and is porous, whereas bonded gravel has a rough texture and is not porous.

Q. Does resin bound gravel require maintenance?

A. Resin bound gravel should be swept regularly to avoid a build-up of debris, resulting in the surface becoming less porous.

Q. Can vehicles be driven on resin bound gravel?

A. The stone aggregate and resin are extremely hard-wearing, so vehicles can be driven on the surface. However, there may be a required depth that the surface must be laid to, depending on what the surface is going to be used for.

Q. What size aggregate is used for the resin bound surfacing?

A. A 1-3mm or 2-5mm aggregate is the most popular size used for a driveway, terrace or path, ensuring the internal build-up of the surfacing is a tight, well-bound mixture, with the right amount of cavitation for permeability. We recommend a minimum depth of 20mm for a driveway and a minimum depth of 16mm for a path or terrace.

For tree pits, we would recommend a 5-8mm or 10mm size aggregate to achieve optimum strength and porosity.

Q. Will there be any changes to the resin bound surfacing during extreme weather?

A. The resin bound surfacing has cavitation with the mixture, so water will run through the surface and back into the ground. This prevents the water from pooling on top of the surface, causing a freezing problem. Again, due to the cavitation with the mixture, the resin bound surface will remain cooler than asphalt or concrete during extreme heat due to air circulating through it.

Q. What temperature should resin bound gravel be laid in?

A. The air temperature should be a minimum of 5 degrees and the surface temperature should be a minimum of 3 degrees above dew point (the temperature at which condensations forms).