The Strength Characterisation of Concrete Made with Alumina Waste Filler

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Abstract

This study covers an in-depth investigation into the properties and practicality of the utilization of up to 40% Alumina Waste Filler (AWF) as a partial Portland Cement (PC) replacement material. AWF is a by-product from the recycling of aluminium, produced when salt slag is smelted and cleaned. Its use in concrete will lessen the landfill requirements for AWF disposal, and reduce the strain of the growing requirements and cost of PC. The results obtained from this study showed that the addition of AWF to the concrete mix caused a reduction in the compressive and tensile splitting strength values, and a less-workable concrete was achieved for every increase in the quantity of AWF added to each mix. The addition of AWF influenced the hydration reaction process and reduced the cumulative production of the heat of hydration over time, whilst the permeability of the concrete decreased.
Original languageEnglish
Article number10235
Pages (from-to)1-14
Number of pages14
JournalSustainability
Volume12
Issue number24
DOIs
Publication statusPublished - 8 Dec 2020

Keywords

  • sustainable concrete; industrial by-products; durability; mechanical strength; permeability; isothermal calorimetry

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