High performance concrete with electric arc furnace slag as aggregate: Mechanical and durability properties

Abstract This paper investigates the feasibility of using Black/Oxidizing Electric Arc Furnace slag (EAF) as coarse aggregate to produce High Performance Concrete (HPC). Various experimental mixes have been produced, fully replacing natural coarse aggregates with EAF slag, varying the cement dosages and the water/cement ratios, and they have been characterized through a mechanical and microstructural campaign. For some mixtures also durability has been evaluated, through a study about chloride ingress into concrete matrix. Results indicate that the use of EAF slag improves concrete strength and durability, reaching C60/75 strength class without using any mineral additions and maintaining relatively high water/cement ratio.

[1]  T. Luping,et al.  On the mathematics of time-dependent apparent chloride diffusion coefficient in concrete , 2007 .

[2]  J. Ollivier,et al.  Interfacial transition zone in concrete , 1995 .

[3]  Amaia Santamaría,et al.  Electric arc furnace slag and its use in hydraulic concrete , 2015 .

[4]  Hjh Jos Brouwers,et al.  The apparent and effective chloride migration coefficients obtained in migration tests , 2013 .

[5]  Flora Faleschini,et al.  Properties of concretes with Black/Oxidizing Electric Arc Furnace slag aggregate , 2013 .

[6]  Véronique Baroghel-Bouny,et al.  AgNO3 spray tests: advantages, weaknesses, and various applications to quantify chloride ingress into concrete. Part 2: Non-steady-state migration tests and chloride diffusion coefficients , 2007 .

[7]  Flora Faleschini,et al.  Experimental Behavior of Reinforced Concrete Beams with Electric Arc Furnace Slag as Recycled Aggregate , 2013 .

[8]  Ioanna Papayianni,et al.  Production of high-strength concrete using high volume of industrial by-products , 2010 .

[9]  Ravindra K. Dhir,et al.  Use of recycled concrete aggregate in high-strength concrete , 2000 .

[10]  Carlo Pellegrino,et al.  Mechanical and durability characteristics of concrete containing EAF slag as aggregate , 2009 .

[11]  C. Meyer.  The greening of the concrete industry , 2009 .

[12]  P. Alaejos,et al.  Durability of recycled aggregate concrete , 2013 .

[13]  M. Collepardi,et al.  Penetration of Chloride Ions into Cement Pastes and Concretes , 1972 .

[14]  Luping Tang,et al.  ELECTRICALLY ACCELERATED METHODS FOR DETERMINING CHLORIDE DIFFUSIVITY IN CONCRETE - CURRENT DEVELOPMENT , 1996 .

[15]  S Marinković,et al.  Comparative environmental assessment of natural and recycled aggregate concrete. , 2010, Waste management.

[16]  Valeria Corinaldesi,et al.  Mechanical and elastic behaviour of concretes made of recycled-concrete coarse aggregates , 2010 .

[17]  A. Marí,et al.  Influence of Amount of Recycled Coarse Aggregates and Production Process on Properties of Recycled Aggregate Concrete , 2007 .

[18]  Andrzej Ajdukiewicz,et al.  Influence of recycled aggregates on mechanical properties of HS/HPC , 2002 .

[19]  Flora Faleschini,et al.  Recycled concrete containing EAF slag: environmental assessment through LCA , 2014 .

[20]  Q. Yuan,et al.  AgNO3-based colorimetric methods for measurement of chloride penetration in concrete , 2012 .

[21]  V. Baroghel-Bouny,et al.  AgNO3 spray tests: advantages, weaknesses, and various applications to quantify chloride ingress into concrete. Part 1: Non-steady-state diffusion tests and exposure to natural conditions , 2007 .

[22]  Chuanzeng Zhang,et al.  Mechanical Properties of Recycled Aggregate Concrete Under Uniaxial Loading , 2005 .

[23]  V. Baroghel-Bouny,et al.  Which toolkit for durability evaluation as regards chloride ingress into concrete? Part I: Comparison between various methods for assessing the chloride diffusion coefficient of concrete in saturated conditions , 2005 .

[24]  Anne-Lise Beaucour,et al.  Concretes made of EAF slag and AOD slag aggregates from stainless steel process: Mechanical properties and durability , 2015 .

[25]  J. M. Manso,et al.  Durability of concrete made with EAF slag as aggregate , 2006 .