DURABILITY OF CONCRETE WITH ELECTRIC ARC FURNACE SLAG AGGREGATE

Corresponding author. E‐mail address: [email protected] (G. Rodríguez de Sensale) DURABILITY OF CONCRETE WITH ELECTRIC ARC FURNACE SLAG 1 AGGREGATE 2 3 M.A. González‐Ortega a , S.H.P. Cavalaro b , G. Rodríguez de Sensale c* , A. Aguado a 4 5 a. Universitat Politècnica de Catalunya (UPC), Department of Civil and Environmental Engineering, Jordi Girona 1‐3, 6 C1, 08034 Barcelona, Spain 7 b. Loughborough University, School of Architecture, Building and Civil Engineering, Sir Frank Gibb Building RT102, 8 Loughborough, United Kingdom 9 c. Universidad de la República (UdelaR), Facultad de Arquitectura‐Facultad de Ingeniería, Edil Hugo Prato 2314, CP 10 11200 Montevideo, Uruguay 11 12 13 ABSTRACT: 14 The durability of concrete mixes with EAF slag as aggregate (HS) is studied; mixes with 15 limestone (HC) and barite (HAB) aggregates were used as reference for structural and heavy‐weight 16 applications, respectively. Compressive strength, elastic modulus, water penetration under pressure, 17 wet‐dry cycles, freeze‐thaw cycles, influence of environmental condition and leaching tests were 18 conducted. The results indicate that HS tends to present higher depth of water penetration under 19 pressure, a slightly higher expansion, higher carbonation depth and similar compressive strength than 20 reference HC. Should be payed attention to the formation of stain points on HS concrete surface 21 subjected to wet‐drying cycles. 22 23 KEYWORDS: 24 EAF slag, Durability, Concrete, Wetting‐drying cycles, Freeze‐thaw, Leaching 25 26 27 28

DURABILITY OF CONCRETE WITH ELECTRIC ARC FURNACE SLAG AGGREGATE

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eaf slag

durability

concrete

wettingâ drying

freezeâ thaw

leaching