HEXHAM DRIVES,
PATHS & PATIOSTECHNICAL DATA SHEET
Resin Bonded Aggregates
DESCRIPTION AND USES
Resin bonded aggregate drives and footpaths are made with Castlebond epoxy compound, a tough, flexible, clear resin that is mixed with special aggregates to produce a hard-wearing composite with long life expectancy
.DESIGN CRITERIA
.Castlebond aggregate screeds are used only as a top dressing or "wearing course". It is neither necessary nor economical to lay thick Castlebond screeds so it is recommended that a base course of tarmac, concrete or well-compacted hard core is laid first. Existing tarmac/concrete drives can be over-laid if sound. The actual thickness of Castlebond is determined by the type of sub-base used and the required properties.
|
TYPE OF SUB-BASE |
APPLICATION |
THICKNESS AND MIX RATIO * |
|
TARMAC /CONCRETE |
DRIVE PATH |
10 MM AT 15:1 10 MM AT 20:1 |
|
HARD CORE |
DRIVE PATH |
20 MM AT 15:1 15 MM AT 20:1 |
|
COMPACTED HOGGING COMPACTED DOLOMITE |
DRIVE PATH |
25 MM AT 15:1 15 MM AT 20:1 |
* Ratio of aggregate:resin
Edgings are required to provide a level to give the correct screed depth and to retain a square edge. These can be paving blocks, concrete kerbs, timber battens or aluminium extrusions. It is recommended that edgings are kept as permanent fixtures.
Porous sub-bases need to be sealed prior to laying the screed to prevent suction of the resin into the sub-base.
Laying of the screed will normally be completed within 1 working day and it can be used the next day.
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