Part of the 2,000m² Bonded Aggregate installed at a Park Ride facility near Oxford.
Check out how Bound Aggregate can be used to surface Tree Pits
BONDED or BOUND Aggregate?
Our industry continues to confuse by using two very similar terms to describe two quite different types of installation. For clarity the two terms are defined here.
BONDED AGGREGATE |
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Bonded Aggregate describes the technique of bonding aggregate to an existing surface.
Adhesive is spread on the surface. Whilst it is still liquid a layer of aggregate is spread over it. When the adhesive has set, any excess aggregate is swept off to leave a layer of aggregate BONDED to the surface. We sometimes describe the effect as producing a "stuck down gravel path." This system is typically 4mm to 6mm thick and is textured.The technique is sometimes referred to as "Scatter Coating" or "Coat and Scatter". |
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 Typical Cross section of a Bonded Aggregate System approx. 5mm thick
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Aggregate is pre mixed with a non yellowing clear resin before it is applied. The mixed
material is then applied by trowel. The thickness can be adjusted to suit
various site conditions and service requirements.
When installed on a robust sub base the system can be as little as 10mm thick. However it is necessary to install at considerably thicker sections on compacted fill to provide sufficient mechanical strength. Because it is trowel applied, the system is relatively smooth. This technique is sometimes referred to as "Hand Troweled" Because it is porous, this material is ideal for surfacing TREE PITS |
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 Typical Cross section of a Bonded Aggregate System approx 25mm thick.
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