RT Conference Proceedings T1 Fracture toughness evaluation of fiber-reinforced concrete manufactured with siderurgic aggregates. A1 Ortega-López, V. A1 Revilla-Cuesta, V. A1 Skaf, M. A1 Fiol, F. A1 Santamaría, A. A1 García-Llona, A. A1 Piñero, I. AB Steel production in electric arc furnaces generates a principal waste stream in the form of Electric Arc Furnace Slag (EAFS), also known as “black slag”. The well-researched and advantageous properties of EAFS guarantee its successful use as aggregate in the manufacture of concrete (CEAFS). In contrast, fiber-reinforced concrete is widely employed, especially in concrete pavements and slabs, for improved cracking resistance and “ductile” post-cracking behavior. In this research, the toughness and ductile behavior of these fiber-reinforced CEAFS is tested with various methods, using different types of (metallic and synthetic) fibers in EAFS mixes. The metallic fiber concretes showed better results than the fiber concretes in terms of toughness, first-crack strength, limit of proportionality, and post-cracking behavior. The recycling process of EAFS makes a relevant contribution to the circular economy and therefore to global sustainability. SN 2515-3048 YR 2019 FD 2019 LK https://hdl.handle.net/11556/3904 UL https://hdl.handle.net/11556/3904 LA eng NO Ortega-López , V , Revilla-Cuesta , V , Skaf , M , Fiol , F , Santamaría , A , García-Llona , A & Piñero , I 2019 , ' Fracture toughness evaluation of fiber-reinforced concrete manufactured with siderurgic aggregates. ' , Sustainable Construction Materials and Technologies , vol. 2 . NO Publisher Copyright: © 2019 Institute of Electrical and Electronics Engineers Inc.. All rights reserved. NO The authors wish to express their gratitude to: Junta de Castilla y León (Regional Government) for funding UIC-231 through project BU119P17 partially supported by FEDER Funds; the Spanish Ministry of Science Innovation and Universities (MICINN) and European Regional Development Funds (FEDER) and, finally, the Basque Government research group (IT1314-19 and IT781-13). Moreover, we are grateful to Fundación Tecnalia Research&Innovation, Chryso, Basf, Bekaer and Hormor-Zestoa for having collaborated with the present research work. DS TECNALIA Publications RD 29 jul 2024