No-fines concrete is a concrete containing little or no fine aggregate. The coarse aggregate should preferably be a single-size material (nominal maximum sizes 10mm and 20 mm being the most common).
However, blended aggregates (10 and 7mm; and 20 and 14mm) have been found to perform satisfactorily. Because it is characterized by uniformly distributed voids, it is not suitable for reinforced or prestressed concrete construction.
- Manohar Srivastava answered September 14, 2014