Optimization Based on Toughness and Splitting Tensile Strength of Steel-Fiber-Reinforced Concrete Incorporating Silica Fume Using Response Surface Method

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dc.authoridKOKSAL, Fuat/0000-0002-3436-1694
dc.contributor.authorKoksal, Fuat
dc.contributor.authorBeycioglu, Ahmet
dc.contributor.authorDobiszewska, Magdalena
dc.date.accessioned2025-01-06T17:44:27Z
dc.date.available2025-01-06T17:44:27Z
dc.date.issued2022
dc.description.abstractThe greatest weakness of concrete as a construction material is its brittleness and low fracture energy absorption capacity until failure occurs. In order to improve concrete strength and durability, silica fume SF is introduced into the mixture, which at the same time leads to an increase in the brittleness of concrete. To improve the ductility and toughness of concrete, short steel fibers have been incorporated into concrete. Steel fibers and silica fume are jointly preferred for concrete design in order to obtain concrete with high strength and ductility. It is well-known that silica fume content and fiber properties, such as aspect ratio and volume ratio, directly affect the properties of SFRCs. The mixture design of steel-fiber-reinforced concrete (SFRC) with SF addition is a very important issue in terms of economy and performance. In this study, an experimental design was used to study the toughness and splitting tensile strength of SFRC with the response surface method (RSM). The models established by the RSM were used to optimize the design of SFRC in terms of the usage of optimal silica fume content, and optimal steel fiber volume and aspect ratio. Optimum silica fume content and fiber volume ratio values were determined using the D-optimal design method so that the steel fiber volume ratio was at the minimum and the bending toughness and splitting tensile strength were at the maximum. The amount of silica fume used as a cement replacement, aspect ratio, and volume fraction of steel fiber were chosen as independent variables in the experiment. Experimentally obtained mechanical properties of SFRC such as compression, bending, splitting, modulus of elasticity, toughness, and the toughness index were the dependent variables. A good correlation was observed between the dependent and independent variables included in the model. As a result of the optimization, optimum steel fiber volume was determined as 0.70% and silica fume content was determined as 15% for both aspect ratios.
dc.description.sponsorshipPolish National Agency for Academic Exchange [PPI/APM/2019/1/00003]
dc.description.sponsorshipThis article has been supported by the Polish National Agency for Academic Exchange under Grant No. PPI/APM/2019/1/00003.
dc.identifier.doi10.3390/ma15186218
dc.identifier.issn1996-1944
dc.identifier.issue18
dc.identifier.pmid36143530
dc.identifier.scopus2-s2.0-85138753460
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.3390/ma15186218
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3065
dc.identifier.volume15
dc.identifier.wosWOS:000857025500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofMaterials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241211
dc.subjectsteel fiber concrete
dc.subjecttoughness
dc.subjectoptimization
dc.subjectresponse surface method
dc.titleOptimization Based on Toughness and Splitting Tensile Strength of Steel-Fiber-Reinforced Concrete Incorporating Silica Fume Using Response Surface Method
dc.typeArticle

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