Understanding Resin Bound Bases

A resin driveway should be installed on a solid base.

What is the difference of a base and a s-base?

Two bases are essential for resin bound installations: the base and sub-base. It can be difficult to tell the difference between them. However, they are all equally important to understand.

What's the base?

The base is what the resin bound systems is placed on and bonds to. This is also called the ‘binder route’. It is common for the term ‘base’ to be incorrectly used to refer to the entire structure underneath the resin bound systems (including the subbase). Therefore, it is important to know the difference.

What is the definition of a sub-base

The sub-base or ‘bindercourse’ is the part of a resin bound surface that lies under the base. A strong sub-base helps to strengthen the entire system and provides a stable platform for the base.

What is the best resin-bound system sub-base?

If you plan on laying a permeable layer above your subbase (such an open course macadam), then your subbase should be MOT type 3 compacted. MOT type 1 is recommended if the base is not permeable and has sufficient slope to allow water flow into a drain.

To be SUDS compliant, a resin-bound system must be permeable.

What are the main Resin Bound binder course material?

Concrete and Macadam are the two main binder materials or base substances for resin bound systems. Each one has its own advantages and disadvantages.

Below is a sample base construction with best practices.

Resin-bound Tarmac base

Macadam is a type a construction surface made with successively compressed layers of crushed stone and bound with bitumen or tar. If you need a permeable, SUDS-compliant system with a resin binding, Macadam can be used.

The base for macadam is a 50mm thick porous surface course macadam with a 14mm close graded porous surface.

Concrete base resin bound with resin

Concrete is one of most popular building materials around the globe. Concrete is used globally twice as often than wood, steel and plastic combined.

For a resin bound solution, a concrete base or binder course may be used. However, this is not a permeable foundation and will require drainage.

A concrete base course should have a C25 smooth brushed concrete of 100mm thickness. On new concrete, a primer is required and the concrete must be completely cured before installing the resin bound driveway.

Is a driveway base that is already in use suitable for Resin Bounding

Before you start laying a resin bound surface onto an existing base or binder, you must first make sure these things are checked. These are:

  • Are there any steps which require effort?
  • Are there cracks or holes in the base? These cracks need to be sealed with a layer membrane.
  • Repaired areas that are badly damaged will need to be removed at a minimum depth 200mm.
  • Make sure you place an edge where there is a border. The resin-bound surface can be damaged if the boundary is removed.
  • Are you looking for edging details? If so, you will need to set concrete or block kerbing 18mm higher than the existing base edge.
  • It is important to clean the base well with a power-wash, with all organic matter removed.
  • The resin bound surface must be fully dried before it can be laid. Resin and water cannot be mixed.

Would your property benefit from a new, state of the art resin patiopath or driveway in Nottingham? Contact us for a no obligation quote on 0115 822 4995. You can also email us [email protected] or visit our website www.resindrivewaysnottingham.co.uk

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