Air-cooled blast furnace slag (ACS)
EC number: 266-002-0
CAS number: 65996-69-2
EINECS number: 266-002-0
EC Name: Slags, ferrous metal, blast furnace
Chemical composition and properties of ACS
| Indicator name | Normal value |
| Calcium oxide (CaO), % | > 39% |
| Magnesium oxide (MgO), % | < 8% |
| Aluminum oxide (Al2O3), % | < 12% |
| Iron oxide (Fe2O3), % | < 7% |
| Silicon dioxide (SiO2), % | < 42% |
| Average humidity, % | < 8% |
| Metallic iron | < 1% |
| Granulometry (min-max size) | 0mm – 20mm |
Uses: Air-cooled blast furnace slag (ACS) is an extremely suitable material for use as a construction aggregate in bound or unbound form. It is actively used in road construction and concrete production.
Trade names:
🇬🇧 English: Air‑cooled blast furnace slag (ACBFS / ABS), Air cooled blast‑furnace slag, Air‑cooled slag, Blast‑furnace slag, air‑cooled, Crystalline air‑cooled blast furnace slag
🇩🇪 Deutsch: Luftgekühlte Hochofenschlacke, Luftgekühlte Hochofenschlacke (ABS), Kristalline Hochofenschlacke, Hochofenschlacke, luftgekühlt, Luftabgekühlte Hochofenschlacke
🇮🇹 Italiano: Scoria da altoforno raffreddata ad aria, Scoria d’altoforno raffreddata all’aria, Scoria d’altoforno ad aria, Scoria cristallina da altoforno, ABS (scoria d’altoforno)
🇷🇴 Română: Zgură de furnal răcită la aer, Zgură răcită la aer de furnal, Zgură cristalizată de furnal, Zgură de furnal aerator, ABS (air‑cooled blast furnace slag)