Innovative design and optimisation of fibre-reinforced alkali-activated slag concrete for railway sleeper applications

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dc.contributor.authorMaras, Muslum Murat
dc.contributor.authorEkinci, Enes
dc.date.accessioned2026-04-04T13:33:32Z
dc.date.available2026-04-04T13:33:32Z
dc.date.issued2025
dc.departmentİnönü Üniversitesi
dc.description.abstractReinforced concrete sleepers are critical components in modern railway systems, especially on high-speed and heavy-load lines, as they ensure safe load transfer to the ground. However, conventional sleepers often face durability problems over time, which may lead to safety risks and economic losses. This study investigates the use of ultra-high-performance alkali-activated slag concrete (AASC) as an alternative material to address these limitations. In the first phase, fiber-free AASC mixtures with varying NaOH molarities and silica fume replacement ratios were produced to determine the optimal mix. In the second phase, the influence of fiber reinforcement on the compressive strength, flexural strength, and sulfate resistance of the optimized mixture was evaluated. Finally, the structural performance of non-prestressed RC sleepers and steel fiber-reinforced AASC sleepers was compared under loading. The findings reveal that AASC sleepers exhibit superior strength, ductility, and energy absorption capacity, indicating strong potential for use in advanced railway systems.
dc.identifier.doi10.1080/14680629.2025.2593996
dc.identifier.issn1468-0629
dc.identifier.issn2164-7402
dc.identifier.orcid0000-0001-7669-887X
dc.identifier.orcid0000-0002-6324-207X
dc.identifier.scopus2-s2.0-105023683884
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1080/14680629.2025.2593996
dc.identifier.urihttps://hdl.handle.net/11616/109232
dc.identifier.wosWOS:001628543200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Ltd
dc.relation.ispartofRoad Materials and Pavement Design
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250329
dc.subjectSleepers
dc.subjectalkali activated slag
dc.subjectfibre
dc.subjectmechanical properties
dc.titleInnovative design and optimisation of fibre-reinforced alkali-activated slag concrete for railway sleeper applications
dc.typeArticle

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