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. While it is confusing to differentiate between these two bases, they are equally important to understand and do the right thing.

What is the base

The base refers to the surface where the resin bound material is laid and bonds. This is also known to be the binder course’. The term base is often used incorrectly to refer the entire structure beneath the resin bound (including the subbase), so it’s important to distinguish between them.

What is the Sub-base?

The sub-base of resin bound surfaces is, as the name suggests the surface underneath the base (or ‘binder course’). A solid sub-base is essential for strength and stability. It also serves as a platform to work on the base.

What sub-base is the best for resin bound systems and how do you choose it?

If you are placing a permeable sub-base above your subbase (such open course macadam), your subbase for a resin bound method should be well compacted to MOT type 3. MOT type 1, if the base isn’t permeable, has enough slope for water to flow off to a suitable drain, may be used.

Permeability is required for resin-bound installations to be SUDS compliant.

What are the main Resin Bound course materials?

Concrete and macadam constitute the preferred binder or base material for resin bound system. Each one has its own advantages and disadvantages.

This information will show you how to build a base with the best practices.

Resin-bound Tarmac base

Macadam, a type construction surface, is formed by successively compacted layers made of broken stones and then bound with bitumen (tar) or molasses. If you are looking for a resin-bound system which is permeable but SUDS compliant, Macadam would be a good choice.

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 the most used building materials worldwide. Concrete is used globally twice as often than wood, steel and plastic combined.

A concrete base, or binder course, can be used for a resin-bound system. However it is not permeable. It will need drainage and adequate fall for water to drain into the drainage.

C25 smooth-brushed concrete should be used as the concrete base. 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

You need to make sure you do not place a new resin bound material on an existing binder or base course. These are:

  • Are there any steps which require effort?
  • Is there any cracks in your base? These cracks need to be sealed with a layer membrane.
  • You will need to remove any areas with severe damage to a minimum depth to 200mm, and then re-establish them using 100mm type 1 MOT hardcore and 100mm concrete.
  • Be sure to place an edge on any boundary. Removing a boundary can cause damage to the resin-bound surface.
  • Do you need edging details? If so, you will need to set concrete or block kerbing 18mm higher than the existing base edge.
  • Make sure you clean the base thoroughly using a powerwash.
  • Before laying the resin-bound surface, it is important that the surface be completely dry. Water and resin cannot mix.

Would your property benefit from a new, state of the art resin patio, path or driveway in Stockport? Contact us for a no obligation quote on 0161 917 2477 / 07990 967423. You can also email us [email protected] or visit our website www.resindrivewaystockport.co.uk

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