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ARTICLE
Abstract
Energy shortage and the emission of greenhouse gases have become a global problem of urgent concern. Therefore, there is an urgent need to develop a low carbon building material. Geopolymers have become a hot topic due
to their environmental sustainability and the feasibility of immobilizing industrial waste. In this paper, steel slag
(SS) fines were investigated as auxiliary materials of blast furnace slag (BFS) based geopolymer. The hydration
heat properties, flowability, compressive strength, sorptivity coefficient, X-ray diffraction (XRD), and scanning
electron microscopy (SEM) of the geopolymer pastes were determined. The results showed that the incorporation
of SS weakened the reactivity of the BFS-based geopolymer paste and improved the flow values of the paste. The
compressive strength of the geopolymer with 20% SS content reached 117 MPa at 28 d. The geopolymer specimens with high compressive strength showed a low sorptivity coefficient. The microscopic results showed that the
addition of the appropriate amount of SS reduced the cracks, improved the density of the geopolymer, and produced a geopolymer composite with excellent mechanical properties.
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Cite This Article
APA Style
Bai, Y., Wang, L., Fang, Y. (2023). Efficient use of steel slag in alkali-activated blast furnace slag based geopolymer. Journal of Renewable Materials, 11(7), 3129-3141. https://doi.org/10.32604/jrm.2023.026923
Vancouver Style
Bai Y, Wang L, Fang Y. Efficient use of steel slag in alkali-activated blast furnace slag based geopolymer. J Renew Mater. 2023;11(7):3129-3141 https://doi.org/10.32604/jrm.2023.026923
IEEE Style
Y. Bai, L. Wang, and Y. Fang "Efficient Use of Steel Slag in Alkali-Activated Blast Furnace Slag Based Geopolymer," J. Renew. Mater., vol. 11, no. 7, pp. 3129-3141. 2023. https://doi.org/10.32604/jrm.2023.026923