Time-resolved X-ray Tomography imaging and Raman mapping for in situ tensile tests on polymers loaded with Electric Arc Furnace steelmaking

Steel slag is one of the most common wastes produced by the steelmaking process1. Since the world steel-request has increased during the last decades, the need to upcycle these slags has become more demanding and urgent. In this framework, Electric Arc Furnace steelmaking slags (EAF-slags) represent a real challenge for the upcycling processes, because of their heterogeneous composition due to the presence of different metal oxides (e.g., FeO, Ca2SiO4, Mg2SiO4, Ca12Al14O33) at different size ranges. Going through the state-of-the-art, these slags present various revalorization potentialities, such as filters for P-removal from wastewater2, additives for Portland cement3, and fillers for polymers4.