20mm All in Ballast

20mm All In Ballast or Concreting Ballast as it is sometimes known, is a mixture of sand and gravel to create a coarse aggregate. 20mm Ballast is the standard aggregate for mixing concrete. 20mm Ballast is not suitable for drainage due to high fines content. Widely used in construction and domestic applications. Please Note: The 20mm Ballast supplied will be that of your local material and thus appearance will vary. Mainland Aggregates Ltd takes pride in being one of the leading 20mm Ballast suppliers, supplied in bulk bags or loose by the tonne. **Material colour will vary according to customer location.