The performance of steel-making slag concretes in the hardened state.

Highlights: [•] Study a concrete that blends two slag aggregates as an adequate raw material. [•] Making more deepen the knowledge of mix proportioning of slag concrete. [•] Study of density and workability of designed slag concrete. [•] Performance of slag concrete in a hardened state. [•] Assesses the slag concrete against the Spanish structural concrete standard. [ABSTRACT FROM AUTHOR]