2026-06-10T11:28:00Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/102482025-02-26T01:05:26Zcom_10259_6171com_10259_5086com_10259_2604col_10259_7105

García Cortés, Verónica García Sánchez, David Revilla Cuesta, Víctor Romera, Jesús María San José Lombera, José Tomás 2025-02-25T13:35:52Z 2025-02-25T13:35:52Z 2022 978-84-09-42253-1 2386-8198 http://hdl.handle.net/10259/10248 Trabajo presentado en: 9th Euro-American Congress on Construction Pathology, Rehabilitation Technology and Heritage Management, REHABEND 2022. En Granada, durante los días 13-16 de septiembre de 2022 The conversion of various industrial by-products from Spanish factories into co-products used in partial substitution of cement and concrete aggregate has been extensively studied since the 1990s. Building on that research effort, the present investigation is focused on improving the packing density of concrete aggregates, with special emphasis on two central objectives: firstly, the reduction of cement and natural aggregate content within concrete; secondly, the validation of their substitution by Electric Arc Furnace Slag (black-slag) aggregate. To do so, several experimental campaigns were conducted, in which 4 compaction procedures were applied under dry conditions to: 4 sieved fractions of natural limestone and 3 sieved fractions of black-slag aggregates. The physical properties of the 7 sieved fractions had previously been characterized and compared with theoretical models, in order to validate their dosing in the experimental tests: Fuller curve, Funk and Dinger curve, Compressible Packing Model, and the 3-Parameter Packing model. The aggregate-packing densities were experimentally and theoretically studied with dry methods. Our findings showed that, unlike natural aggregates, other methods based on aggregate shape are preferable for black-slag mixtures, due to the specific textures and their abrupt particle contours. The conclusions from the investigations were that both the Compressible Packing Model and the 3-Parameter Packing models produced valuable packing-density predictions for the binary mixes. This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and the University of Burgos [grant number SUCONS, Y135.GI]. application/pdf eng Universidad de Cantabria REHABEND 2022 The 9th Euro-American Congress: Construction Pathology, Rehabilitation Technology and Heritage Management. p. 1634-1642 https://www.rehabend.unican.es/2022/ Compressible packing model (CPM) 3-Parameter packing desnsity model (3-PM) Electric Arc Furnace Slag Natural (limestone) Aggregate (NA) Concrete design Materiales de construcción Hormigón-Ensayos Building materials Concrete-Testing An overview of sustainable concretes with maximized aggregate content: natural limestone versus steel making slags info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess 1634 1642