A novel all-solid-waste binder prepared by salt-alkali synergistic activation system constructed from phosphogypsum, soda residue and calcium carbide slag

Wang, Di; Zhang, Zhaoyun; Guo, Weichao; Li, Jianyuan; Li, Xuewei; Zhao, Qingxin

doi:10.1016/j.cemconcomp.2024.105841

Cement and Concrete Composites

2025

DOI: 10.1016/j.cemconcomp.2024.105841

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A novel all-solid-waste binder prepared by salt-alkali synergistic activation system constructed from phosphogypsum, soda residue and calcium carbide slag

Di Wang,

Zhaoyun Zhang,

Weichao Guo

et al.

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2025

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Cited by 2 publications

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Sustainable stabilization/solidification of electroplating sludge using a low-carbon ternary cementitious binder

Wang,

Miao,

Shi

et al. 2025

Journal of Environmental Chemical Engineering

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Sustainable stabilization/solidification of electroplating sludge using a low-carbon ternary cementitious binder

Wang,

Miao,

Shi

et al. 2025

Journal of Environmental Chemical Engineering

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Unveiling the Potential of Civil Briquette Furnace Slag as a Silico–Aluminon Additive in Alkali-Activated Materials

Ren,

Li,

Zhao

et al. 2024

Materials

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Civil briquette furnace slag (FS), as a type of industrial solid waste, is not currently being recycled as a resource by the building materials industry. This study focuses on the potential of FS in the formulation of alkali-activated materials (AAMs) compared with calcium carbide slag (CS). This study encompasses three distinct AAM systems: alkali-activated fly ash alone (AAFA), fly ash–slag powder blends (AAFB), and slag powder alone (AABS). Electrical conductivity, fluidity, drying shrinkage, and flexural and compressive strengths were also assessed. Advanced characterization techniques, including SEM-EDS, XRD, FTIR, and TG-DSC, were utilized to examine the morphology, mineralogy, and reaction products. Despite the chemical similarity between FS and CS, FS exhibits limited active chemical components (SiO2, Al2O3, CaO, and MgO) and primarily functions as a physical filler, and thus lacks the chemical binding properties of CS. FS has a positive effect on the long-term compressive strength of the AABS system but not on the AAFA and AAFB systems. The NaOH-activated SP mortar sample with 20% FS reaches a compressive strength of 29.8 MPa at 360 days. The binding strength in AAMs incorporating FS is predominantly attributed to the gel formation within the alkali-activated matrix. This research offers valuable insights into the strategic use and substitution of CS, FS, and other silico–aluminon additives within the context of AAMs development.

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A novel all-solid-waste binder prepared by salt-alkali synergistic activation system constructed from phosphogypsum, soda residue and calcium carbide slag

Cited by 2 publications

References 58 publications

Sustainable stabilization/solidification of electroplating sludge using a low-carbon ternary cementitious binder

Sustainable stabilization/solidification of electroplating sludge using a low-carbon ternary cementitious binder

Unveiling the Potential of Civil Briquette Furnace Slag as a Silico–Aluminon Additive in Alkali-Activated Materials

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