RT info:eu-repo/semantics/conferenceObject
T1 Siderurgical mortars in Spain: rehabilitation opportunities and an overview of progress
A1 Santamaría, Amaia
A1 Esteban, Alberto
A1 Skaf Revenga, Marta
A1 García Cortés, Verónica
A1 González, Javier Jesús
K1 Electric Arc Furnace Slag
K1 Ladle furnace slag
K1 Cement and aggregate substitutions
K1 Mortar design
K1 Durability
K1 Materiales de construcción
K1 Building materials
K1 Ingeniería civil
K1 Civil engineering
K1 Hormigón-Ensayos
K1 Concrete-Testing
AB 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.
PB Universidad de Cantabria
SN 978-84-09-42253-1
SN 2386-8198
YR 2022
FD 2022
LK http://hdl.handle.net/10259/10246
UL http://hdl.handle.net/10259/10246
LA eng
NO 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
NO 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].
DS Repositorio Institucional de la Universidad de Burgos
RD 03-mar-2025