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Resin Bound Knowledge Base

Resin Bound Knowledge Base

Specification - Site Survey

In order to ensure that a resin bound surface is suitable for the desired end use it is important to conduct a detailed site survey. If overlooked, what may seem like a small, inconsequential matter can end up costing thousands of pounds to rectify. When surveying an installation site, the following aspects should be taken in to consideration:


The difference between a full installation and an overlay?

If the customer has requested an overlay the condition of the current surface, poor drainage or traffic type can all cause future problems.


If the current base is undamaged concrete or tarmacadam/bitmac, this may be suitable as the base layer for a resin overlay however a loose surface (such as gravel) or jointed surface such as block paving or flags are not suitable and would need to be replaced.

Damage to the surface

If the existing surface shows signs of damage from reflective cracking or lifting then this should be replaced or repaired prior to the application of a resin bound surface. Damage is often a result of the sub-base layer not being fully compacted, collapsed drains, heaving by tree-roots or impact damage. Whilst impact damage can easily be repaired, sinking or heaving of the surface suggests that it should be replaced.

Expansion or structural joints

On a full install, expansion joints are not typically required for a tarmacadam base course, a small domestic driveway or a pathway. We do advise that expansion profiles are used for day joints and any installations onto a concrete base. If the existing surface is to be overlaid then any movement or expansion joints in the base must have matching joints applied to the resin bound surface.


What will the resin bound surface be used for?

The desired end use will define the application depths and aggregate selections available. A driveway will require a greater depth of bound resin whilst a back garden may require a paved BBQ area, child friendly play area or enhanced anti-slip properties for the elderly.


What will be the heaviest vehicle to access the surface?

Whilst a driveway may usually have one or two small cars parked on it some may have turning 4x4 vehicles, caravans, refuge lorries or even farming equipment. The aggregate and application depth should be specified for a worse case scenario.


Which aggregate blend colour will complement the surrounding area whilst providing adequate strength for the desired end use?

Not all aggregates provide surfaces of equal strength and a balance between appearance and performance should be achieved.


Will the completed surface have any specific requirements?

Small details are often overlooked but can be essential. If the area is overlooked by deciduous trees which can cover the surface in leaves or it has a slope it may require greater anti-slip properties? Will the installation require steps or possibly wheelchair access?


All of the above-mentioned details should be discussed and agreed prior to the installation of a resin bound surface.

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