Direct Shear Tests of Sand Reinforced with Ferrous Particles
Publication: Geo-Congress 2023
ABSTRACT
The use of industrial waste in civil applications can result in a sustainable and cost-effective alternative for the waste management of these steel by-products, provided that the engineering properties of these materials are comparable with those of other soil improvement additives. Recent studies in ground improvement have focused on using waste/by-products as additives to improve soils, decrease costs, and improve sustainability of projects. This study investigates the influence of randomly distributed ferrous particles (steel slag, iron fillings, and graphene flakes) within Ottawa sand specimens. Direct shear tests were performed on the samples prepared with pure Ottawa sand and the mixture of Ottawa sand with ferrous particles. Four particle concentrations (0%, 3%, 5%, and 7%) and two relative densities (50% and 70%) were used to prepare soil-particle samples. Results indicated that the addition of randomly distributed steel slag and iron fillings increased the shear strength up to 18%; however, the use of graphene flakes decreased the strength of the mixtures.
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Geo-Congress 2023
Pages: 500 - 508
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Published online: Mar 23, 2023
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