Stabilization of a Clayey Soil with Ladle Metallurgy Furnace Slag Fines

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dc.contributor.authorBrand, Alexander S.en
dc.contributor.authorSinghvi, Puniten
dc.contributor.authorFanijo, Ebenezer O.en
dc.contributor.authorTutumluer, Erolen
dc.contributor.departmentCivil and Environmental Engineeringen
dc.date.accessioned2020-09-28T12:40:10Zen
dc.date.available2020-09-28T12:40:10Zen
dc.date.issued2020-09-24en
dc.date.updated2020-09-25T13:30:50Zen
dc.description.abstractThe research study described in this paper investigated the potential to use steel furnace slag (SFS) as a stabilizing additive for clayey soils. Even though SFS has limited applications in civil engineering infrastructure due to the formation of deleterious expansion in the presence of water, the free CaO and free MgO contents allow for the SFS to be a potentially suitable candidate for clayey soil stabilization and improvement. In this investigation, a kaolinite clay was stabilized with 10% and 15% ladle metallurgy furnace (LMF) slag fines by weight. This experimental study also included testing of the SFS mixtures with the activator calcium chloride (CaCl<sub>2</sub>), which was hypothesized to accelerate the hydration of the dicalcium silicate phase in the SFS, but the results show that the addition of CaCl<sub>2</sub> was not found to be effective. Relative to the unmodified clay, the unconfined compressive strength increased by 67% and 91% when 10% and 15% LMF slag were utilized, respectively. Likewise, the dynamic modulus increased by 212% and 221% by adding 10% and 15% LMF slag, respectively. Specifically, the LMF slag fines are posited to primarily contribute to a mechanical rather than chemical stabilization mechanism. Overall, these findings suggest the effective utilization of SFS as a soil stabilization admixture to overcome problems associated with dispersive soils, but further research is required.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBrand, A.S.; Singhvi, P.; Fanijo, E.O.; Tutumluer, E. Stabilization of a Clayey Soil with Ladle Metallurgy Furnace Slag Fines. Materials 2020, 13, 4251.en
dc.identifier.doihttps://doi.org/10.3390/ma13194251en
dc.identifier.urihttp://hdl.handle.net/10919/100080en
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectsteel furnace slag (SFS)en
dc.subjectladle metallurgy furnace (LMF) slagen
dc.subjectsoil stabilizationen
dc.subjectunconfined compressive strengthen
dc.subjectdynamic modulusen
dc.subjectslag characterizationen
dc.titleStabilization of a Clayey Soil with Ladle Metallurgy Furnace Slag Finesen
dc.title.serialMaterialsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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