Out around the facilities of shared solutions center of IMSP RAS “Structural and Physical-mechanical Research of Materials”. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: The information presented within this study are obtainable within the write-up. Conflicts of Interest: The authors declare no conflict of interest.Metals 2021, 11,16 ofapplied sciencesArticlePreliminary Study of Recycled Aggregate Mortar for Electric Arc Furnace Dust EncapsulationEnrique F. Ledesma 1 , Ang ica Lozano-Lunar 1 , Ruan L. S. Ferreira two , JosMar Fern dez-Rodr uez three, , and JosRam Jim ez 1, ,ea de Ingenier de la Construcci , Campus de Rabanales, Universidad de C doba, Ed. Leonardo da Vinci, 14071 C doba, Spain; [email protected] (E.F.L.); [email protected] (A.L.-L.) Civil Construction Department, Federal Institute of Education, Science and Technology of Pernambuco, Pesqueira 55200-000, Brazil; [email protected] ea de Qu ica Inorg ica, Campus de Rabanales, Universidad de C doba, Ed. Marie Curie, 14071 C doba, Spain Correspondence: [email protected] (J.M.F.-R.); [email protected] (J.R.J.) Each authors equally contributed for the paper.Citation: Ledesma, E.F.; Lozano-Lunar, A.; Ferreira, R.L.S.; Fern dez-Rodr uez, J.M.; Jim ez, J.R. Preliminary Study of Recycled Aggregate Mortar for Electric Arc Furnace Dust Encapsulation. Appl. Sci. 2021, 11, 9525. ten.3390/app11209525 Academic Editor: Asterios Bakolas Received: 5 September 2021 Accepted: 9 October 2021 Published: 13 OctoberAbstract: This short article shows the preliminary benefits of a study carried out to decide the technical feasibility of encapsulating a higher percentage of EAFD in cement-based mortars manufactured with all the fine fraction of recycled concrete aggregates (RCA). Two families of mortars, with natural aggregate as a reference and with RCA, were studied. An incorporation rate by weight of two parts mortar to 1 aspect EAFD was tested. The mechanical strengths (compressive strength and tensile strength) ahead of and just after immersion in water, the price of delitescence plus the L-Kynurenine References leaching behavior have been studied. Mortars made with RCA showed similar mechanical strengths to the reference mortars made with all-natural aggregates; having said that, the incorporation of EAFD decreased the mechanical strengths. Encapsulation significantly decreased the leaching of heavy metals, although the Pb concentration remained above the hazardous waste limit. With this preliminary study, two wastes are managed together, as well as the results have shown that the use of RCA rather of all-natural aggregate is usually a viable alternative since it will not considerably impair the mechanical or leaching properties with the cementbased matrices applied to encapsulate EAFD. Key phrases: Electric Arc Furnace Dust; recycled concrete aggregates; mechanical behavior mortar; leaching behavior mortar; encapsulation hazardous waste1. Introduction The “Europe 2020” tactic aims to generate clever, sustainable and inclusive growth by opting for an effective economy in the use of natural resources. The new paradigm in the “circular economy” has as its principal objective the sustainable use of sources via the principle of “closing the lifecycle loop” of materials–that is, to reintroduce in to the production method supplies classified as “waste” whose location was the landfill [1]. This practice reduces the volume of waste managed in landfills and reduces the ATP disodium In stock amount of raw supplies consumed [2]. Among.
