Thermal behaviour of ladle slag mortars containing ferrochrome slag aggregates

Concretes, depending on their application, may be exposed to elevated temperatures during lifetime, especially when placed near or in a furnace an accidental fire. The thermal stability of alkali-activated mortars and hydrated prepared using ladle slag two different aggregates was studied. A commercial calcium aluminate cement used as comparison for the properties after exposure up 1000°C. All samples were characterised analysed through strength test, dilatometric analysis, thermogravimetric ultrasonic pulse velocity scanning electron microscopy. exhibited similar better than cement, while slag's inferior mortars. tests also showed that use ferrochrome those sand aggregate damage behaviours dependent temperature-induced dehydration, dehydroxylation incompatibility between paste aggregates. results from this study specify possibilities 100% industrial by-product-based mortar near-zero carbon dioxide emissions fire-resistant material furnaces, buildings fireplaces.