TY - GEN
T1 - SIDERURGICAL MORTARS IN SPAIN
T2 - 9th Euro-American Congress on Construction Pathology, Rehabilitation Technology and Heritage Management, REHABEND 2022
AU - Santamaría, Amaia
AU - Esteban, Alberto
AU - Skaf, Marta
AU - García-Cortés, Verónica
AU - González, Javier Jesús
N1 - Publisher Copyright:
© 2022, University of Cantabria - Building Technology R&D Group. All rights reserved.
PY - 2022
Y1 - 2022
N2 - 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.
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.
KW - Cement and aggregate substitutions
KW - Durability
KW - Electric Arc Furnace Slag (EAFS)
KW - Ladle Furnace Slag (LFS)
KW - Mortar design
UR - http://www.scopus.com/inward/record.url?scp=85142277655&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85142277655
SN - 9788409422524
T3 - REHABEND
SP - 1436
EP - 1443
BT - REHABEND 2022 - Construction Pathology, Rehabilitation Technology and Heritage Management
A2 - Blanco, Haydee
A2 - Boffill, Yosbel
A2 - Lombillo, Ignacio
PB - University of Cantabria - Building Technology R&D Group
Y2 - 13 September 2022 through 16 September 2022
ER -
