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Posted: Wed May 23, 2007 5:19 pm
by landscapematt
I'm looking to specify an access road to a rural property and a planning requirement is that it must have an appearance suitable for its location. If the wearing course had an open texture then areas not trafficked would soon accumulate dirt etc which would help. What is the best way to specify an open textured wearing course. Also I understand specifying a limestone aggregate will help 'tone'down' the colour - is this correct?

many thanks

matt

Posted: Wed May 23, 2007 8:35 pm
by Dave_L
Something open textured - 20mm basecourse will be fairly open after compaction - other than that, the only other open surface we lay is on roads that are to be adopted by the local highways authority and block paving is to be the 'surface course' - it's called "Whispercoat", supplied by a local quarry, Wainwright.
The open texture aids drainage under the block paving.

Posted: Sat May 26, 2007 2:44 pm
by Tony McC
Open textured surface course tends to degrade quite quickly, I find. While the voids DO fill up with detritus and encourage vegetation, this detritus and vegetation accelerates the degradation of the surfacing.

As for limestone agg 'toning down the colour', I'm not so sure. Limestone-based blacktop tends to abrade to a very pale grey, almost white, finish, that may or not be considered as 'toned down' depending on what the local environment is like.

Posted: Mon May 28, 2007 9:37 am
by bobhughes
Good old Brindle blocks soon fade into the background.

If the traffic is light what about the honeycomb plastic surface with grass or gravel?