ALL-IN BALLAST

If the coarse aggregate and concreting sand/fine aggregate are purchased already mixed together, the material is known as ‘all-in aggregate’ or ‘all-in ballast’. Aggregates for concrete can be purchased in 25-kg bags, 1-tonne ‘dumpy bags’ or loose by the lorryload for very large deliveries.

ALL-IN BALLAST

Fig. 5 ‘All-in ballast’.