RT info:eu-repo/semantics/conferenceObject
T1 Bituminous base courses for flexible pavements with steel slags
A1 Skaf Revenga, Marta
A1 Bartolomé González, Javier
A1 Gonzalo Orden, Hernán
A1 Linares Unamunzaga, Alaitz
A1 Ortega López, Vanesa
A1 Manso Villalaín, Juan Manuel
K1 Infraestructuras
K1 Infrastructures
K1 Ingeniería civil
K1 Civil engineering
K1 Transporte
K1 Transportation
AB The purpose of this research was to study the feasibility of incorporating steel slags intocoarse bituminous mixtures. The objective was twofold: to reduce dependence on naturalaggregates, and to provide a use for industrial by-products. The slags studied come fromthe manufacture of carbon steel in electric furnaces and are divided into two types: ElectricArc Furnace (EAF) slag and Ladle Furnace (LF) slag. The mixture designed is coarsebituminous concrete (AC22G), for base courses in flexible pavements.In a first phase, the physical characterization of the materials was carried out to check theirsuitability. In a second phase, three types of mixes were designed: a control mix (madewith natural limestone aggregates), a mix where LF slag was introduced to replace thefiller and the fine fraction (sand) of the mix; and finally, the feasibility of manufacturing atotally sustainable mix was analyzed, which would fully incorporate EAF slag as coarseaggregate and LF slag as fine aggregate and filler. In a third and final phase, the designedmixes were subjected to different mechanical, water sensitivity, and durability tests.The research demonstrated that the incorporation of EAF and LF steel slag as a substitutefor natural aggregate in coarse bituminous mixtures is feasible, meeting regulatoryrequirements, improving sustainability in the construction industry, as well as reducingemissions, and contributing to climate change mitigation.
PB Universidad de Burgos. Servicio de Publicaciones e Imagen Institucional
SN 978-84-18465-12-3
YR 2021
FD 2021-07
LK http://hdl.handle.net/10259/6887
UL http://hdl.handle.net/10259/6887
LA eng
NO Trabajo presentado en: R-Evolucionando el transporte, XIV Congreso de Ingeniería del Transporte (CIT 2021), realizado en modalidad online los días 6, 7 y 8 de julio de 2021, organizado por la Universidad de Burgos
NO This work was supported by the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231, BU119P17] and the University of Burgos [grant number SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 16-abr-2024