2026-05-23T11:24:32Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/102462025-03-03T11:10:07Zcom_10259_6171com_10259_5086com_10259_2604col_10259_7105

Santamaría, Amaia Esteban, Alberto Skaf Revenga, Marta García Cortés, Verónica González, Javier Jesús 2025-02-25T13:08:11Z 2025-02-25T13:08:11Z 2022 978-84-09-42253-1 2386-8198 http://hdl.handle.net/10259/10246 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 In the present paper, waste products from the steel-making industry are reused as fine raw material in rehabilitation mortars for construction works. Two cement mixes are evaluated: masonry mortars and structural mortars. The study is focused on two steel-making by-products: electric arc furnace slag and ladle furnace slag. The mortar design proposed here incorporates the former in partial substitution of fine aggregates (sand) and the ladle furnace slag in partial substitution of Portland cement and, in some cases, as aggregate (filler). Several partial substitutions of mortar binders/aggregates were prepared which yielded different mixes: 8 masonry mortars whose compressive strengths were below 20 MPa and 12 structural mortars whose compressive strengths were over 50 MPa. At the lab scale, various physical and chemical tests were performed on batches in both the fresh and the hardened state (densities, spreading, mechanical strength, porosity and weathering studies). Our results fully support the use of these siderurgical mortars for architectural (non-structural) rehabilitation purposes and in structural refurbishments for strengthening reinforced concrete elements. 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. 1436-1443 https://www.rehabend.unican.es/2022/ Electric Arc Furnace Slag Ladle furnace slag Cement and aggregate substitutions Mortar design Durability Materiales de construcción Ingeniería civil Hormigón-Ensayos Building materials Civil engineering Concrete-Testing Siderurgical mortars in Spain: rehabilitation opportunities and an overview of progress info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess 1436 1443