Compressive strength of mortar containing ferronickel slag as replacement of natural sand
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Uses of various industrial by-products have been extensively studied in the past few decades in order to enhance the sustainability of construction industry. By-products can be used as alternatives to binders as well as aggregates in concrete. A large quantity of granulated ferronickel slag (FNS) is produced as a by-product in the smelting of nickel ore. This paper presents the effects of using ferronickel slag as a replacement of natural sand in cement mortar. The slag was produced by sea water-cooling of the by-product from the smelting of garnierite nickel ore. The grain size distribution of the slag was found suitable for using as fine aggregate in concrete. It was found that flow of fresh mortar increased with the increase of FNS up to 50% replacement of sand and then declined with further increase of FNS. The compressive strength of the hardened mortar specimens increased with the increase of FNS up to 50% and then declined with further increase of FNS. Use of fly ash as 30% cement replacement together with FNS as replacement of sand increased the flow of fresh mortar and decreased the strength of hardened specimens.
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Thermal properties and residual strength after high temperature exposure of cement mortar using ferronickel slag aggregateSaha, Ashish ; Sarker, Prabir ; Golovanevskiy, Vladimir (2019)This study evaluates the thermal properties of cement mortar using by-product ferronickel slag (FNS) fine aggregate and its residual strength after high temperature exposure. Compressive strength of mortar increased when ...
Rahman, M.A.; Sarker, Prabir; Shaikh, Faiz (2015)Usage of industrial by-product materials in concrete is increasing because this is a sustainable way to manage the by-products and convert them into economic values. This paper presents the properties of fresh and ...
Saha, Ashish Kumer; Sarker, Prabir (2017)Ferronickel slag (FNS) is generated as a by-product during the production of ferronickel. The rapid cooling process of the slag may lead to the formation of amorphous silica. Therefore, partial replacement of sand with ...