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6mm black basalt being packed at our Rugeley depot6mm black basalt being packed at our Rugeley depot6mm black basalt being packed at our Rugeley depot6mm black basalt being packed at our Rugeley depot
Dashing - Volcanic Black Basalt - 3-8mm
Product Code: 1231

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Price per pack£32.40£30.00£28.08Click to View
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A hard, durable dark grey granite - black when wet. Specially graded for pebble dashing (harling) and exposed concrete applications.

Pack size: 15kg

Stone Size: 3-8mm

Natural black basalt gravel specifically sized for the renovation of pebble dashing (harling) and for exposed aggregate concrete surfaces.
This product potentially contains small amounts of iron minerals which may rust when used as a dashing.

Pebble Dash Coverage Coverage will depend on the skill of the applicator, the density of cover required and wastage during application. As a guide application rates in the order of of 5kg per sqm may be expected. ie a 15kg pack may be expected to cover approximately 3sqm.

Harling or Pebble Dashing ?
Harling is a Scottish term describing the technique of providing a waterproof render with an exposd decorative aggregate finish. The technique has also been adopted in other parts of the UK where it is known as Pebble or Dry Dashing.
Traditionally utilising lime mortar, but more recently cement mortars have been used to provide a base course. Stone chippings, pebbles and even shells are then broadcast onto the surface and lightly pressed in to provide a decorative and durable weatherproof surface.

The technique has been used on buildings form modest sea-side cottages to famous buildings including the Great Hall in Stirling Castle.

Concrete Batching:
The product can be used for exposed decorative concrete mixes. As a direct replacement for builders gravel. When used for exposed polished flooring and worktops the quantity of granite will depend on the desired aesthetics and mix design.
Whilst being durable, concretes made with granite will require more work than marble or limestone aggregates to produce a polished finish. However, exposed (brushed) finishes often refered to as "grano" will have good anti-skid properties

* Specialist Aggregates' Price Promise:
All prices shown include UK VAT and delivery to 90% of UK locations - Read More. - There are no hidden charges on checkout.

We export throughout Europe and Worldwide - please enquire for shipping rates.

Quick Contact:
WhatsApp your enquiry and images to 07484 022898

Rocks in a Box For protection and security your product will be shipped in a weatherproof pack within our easy-to-handle double walled cardboard box.

Boxes are delivered by national couriers. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the inner plastic pack and the outer box can be recycled via normal household or industrial/commercial collections.

Specify: Black Basalt dashing from Specialist Aggregates.

Product Code: 1231

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Dashing - Volcanic Black Basalt - 3-8mm
Dashing - Volcanic Black Basalt - 3-8mm
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Dashing - Volcanic Black Basalt - 3-8mm - Click & Collect
Dashing - Volcanic Black Basalt - 3-8mm - Click & Collect
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