Fracture toughness evaluation of fiber-reinforced concrete manufactured with siderurgic aggregates.

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URI: https://hdl.handle.net/11556/3904
ISSN: 2515-3048
Publication date
2019
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Abstract
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.
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Publisher Copyright: © 2019 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
Keywords
Cracking resistance , Fiber-reinforced concrete , Fracture toughness , Slag , Civil and Structural Engineering , Building and Construction , Mechanics of Materials , General Materials Science , SDG 12 - Responsible Consumption and Production
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conference output
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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 .