The Cottonmount Landfill Site is located Co.Antrim, Northern Ireland.

The site is located within Cottonmount Quarry a working hard rock quarry. The landfill site receives general municipal waste from Belfast City.

WALO UK was appointed as the principal lining contractor for the site and constructed 3 landfill cells, using dense asphaltic concrete, between 2006 and 2008.

In 2008 a cell was constructed using dense asphaltic concrete as part of a composite lining system of some 17,800 m2. The lining system comprised of a 300 mm mineral attenuation layer; 200 mm sub-base material layer; 60 mm asphaltic binder layer; 80 mm dense asphaltic concrete layer and a mastic seal coat to the base, side slopes and bund areas.

The works involved the placing of asphalt by paver and winch on a 40m slope. Once the lining was completed a 300 mm thick layer of leachate drainage stone was applied to the whole area. The works were undertaken in the winter of 2008 in very difficult weather conditions.

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