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| Gravel Driveways.
There is an ever-expanding menu of aggregates that
can be used for these type of driveways. One of the
most frequent questions is "what size of gravel
should I use?".
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| Generally, sizes
are from 6-20mm - anything smaller is too easily
disturbed. Anything over 20mm can be hard to walk
on. In general, 6-10mm gravel would be used for
pathways and 10-20mm for driveways but it is a
personal choice. |
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| Construction.
We dig to 135 or 180mm for heavier vehicles.
Once dug, we will remove all weeds and other
unwanted organic matter. The sub-grade will be
doused with a general weed killer such as sodium
chlorate and then a permeable membrane will be laid
on top of the sub-grade. We then put on edging
restraint in if needed as the gravel can become
mixed very easily with the surrounding soil or lawn.
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| 100mm of Ministry
of Transport type 1 is then put in and compacted or
150mm on a heavy vehicles driveway. Then gravel is
laid to 25 - 40mm thickness. The first thin layer is
compacted into the type 1 to prevent the sub base
becoming exposed. |
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