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Resin Bound Knowledge Base

Resin Bound Knowledge Base

Specification - Introduction

In order to confirm the suitability of a resin bound surface, provide a detailed specification and an accurate quote, an initial site survey should be completed. There are several key areas which must be taken into consideration in the site survey:

Examine the current surface of the site
In order to achieve the maximum performance standards a resin bound surface should be applied as part of a larger groundwork’s installation. A full install will typically require the base course to be removed and replaced with open graded tarmacadam or porous concrete. A resin bound surface that could receive any vehicular traffic should only be applied to a solid base.

Resin Bound Base Table

* Base may be suitable for tree-pits or non-trafficked installations

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.

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