Aggregates brochure

New aggregates guide for natural slates

  • 5 Feb 2016

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Welsh Slate has published a new guide overviewing the features and benefits of its natural slates as an aggregate, specifically for civil engineering, house building, the water industry and precast and ready-mixed concrete.

As a construction aggregate, Welsh Slate can be used as a granular sub-base for road building, car parks, footpaths and driveway. 

Due to its excellent load bearing qualities, the slate can also be used as pipe bedding; washed sand for use in precast and ready-mixed concrete; slate sand; capping layers and crusher runs in road building and for filling large voids.

Welsh Slate is also suitable for use as decorative chippings, as it does not oxidise and retains its natural colour indefinitely. Its natural flat shape also provides better coverage per tonne when compared to other aggregates.

Natural slate aggregate

Welsh Slate is ideal for domestic and commercial applications such as garden footpaths, flower beds, weed suppression, pond lining, municipal car parks and footpaths, caravan parks, golf courses and cycle and forest tracks.

Welsh Slate aggregate can be blended with sterilised PAS100 compost to make a high-quality topsoil, suitable for all landscaping requirements including grass sowing, trees, shrubs, turfing, herbaceous borders and other plantings. It can also be used on brownfield land to help improve previously contaminated sites.

Available in four colours (blue, plum, grey and green) and two grades (50-30mm and 30-10mm), Welsh Slate aggregate samples are available on request, complete with full gradation certificates and Health and Safety data sheets.

The aggregates guide is available on the Welsh Slate website

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