Dynamic Shear Properties of Recycled Waste Steel Slag Used as a Geo‐Backfill Material

Abstract

Waste steel slag is a recycled industrial solid waste and is sometimes used as backfills, but the dynamic shear properties of waste steel slag have not been researched at present. To understand the dynamic shear properties of waste steel slag, the resonance column tests were carried out to investigate the dynamic shear modulus and damping ratio of the steel slag considering the effect of the relative density of steel slag and confining pressure. The maximum dynamic shear modulus was discussed, and the dynamic model of the steel slag was constructed by the Hardin–Drnevich model. The regression analysis of the normalized dynamic shear modulus ratio and damping ratio of the steel slag showed that the dynamic model was very fit for the steel slag. The comparisons of the dynamic shear properties of the steel slag with those of Nanjing fine sand and Fujian standard sand showed that the steel slag had similar dynamic shear resistance to Fujian standard sand and had potential to become a substitute for sand in the practical geotechnical engineering in the future.

Modeling the application of steel slag in stabilizing expansive soil

“…They have used fly ash (Choudhary et al 2014;Zorluer and Gucek 2014;Al-Malack et al 2016), lime (Zha et al 2007;Rouaiguia and Abd El Aal 2020), cement (Fattah et al 2010), marble dust (Abdul Waheed et al 2021;Abdelkader et al 2021; (Amena and Kabeta 2022); Rouaiguia and Abd El Aal 2020), plastic strips (Amena and Kabeta 2022); Peddaiah et al 2018;Rawat and Kumar 2016;Irshayyid and Fattah 2019;Kabeta 2022) bentonite mixed with sand (Fattah et al 2021), geogrid reinforced columns (Al-Omari et al 2016;Masood et al 2021), ceramic waste , tiles Al-Bared et al 2019a;Al-Bared et al 2019b), granite waste (Zainuddin et al 2019) and steel slag (Asi et al 2007;Abdalqadir and Salih 2020;Abdalqadir et al 2020;Aldeeky and Al Hattamleh 2017;Shen et al 2009). Steel slag (SS) waste is one of the materials from steel factories used in the construction industry, such as in mortar road base material (Chen, Zhou, and Wu 2007;Nadeem and Pofale 2012), cement manufacturing (Shen et al 2009), (Huang and Lin 2010) and soil improvement (Abdalqadir et al 2020;Abdalqadir and Salih, 2020;Wang et al 2020;Liang et al 2013;Patel and Patel 2016;Wang et al 2019).…”

Calculation Method of Seismic Residual Displacement of Sheet Pile Quay Walls

“…Of course, the improvement treatment of backfill soils is an important method to reduce the displacement on sheet pile quay walls. e improvement of backfill soils includes many methods, and the authors in the paper have carried out some research on the improvement of backfill soils [21,22].…”