TY - JOUR

T1 - Preparation, characterization and performance analysis of sustainable kaolinitic clay-based ceramics incorporating ternary blends of steel slag, coal fly ash and waste glass bottle-derived powder

AU - Yelubay, Madeniyet

AU - Tolegenov, Dias

AU - Maussumbayev, Sabit

AU - Kanasheva, Nurdana

AU - Aitkaliyeva, Gulzat

AU - Mokichev, Vladimir

AU - Denisov, Stepan

AU - Tsvetkov, Sergey

AU - Kasprzhitskii, Anton

AU - Lazorenko, Georgy

N1 - Preparation, characterization and performance analysis of sustainable kaolinitic clay-based ceramics incorporating ternary blends of steel slag, coal fly ash and waste glass bottle-derived powder / M. Yelubay, D. Tolegenov, S. Maussumbayev [et al.] // RSC Advances. – 2026. – Vol. 16, No. 17. – P. 15051-15061. – DOI 10.1039/d6ra00763e. – EDN SIWTXX.

PY - 2026/3/16

Y1 - 2026/3/16

N2 - The valorization of industrial solid wastes into construction materials represents an important pathway toward resource efficiency and carbon reduction in the building sector. In this study, sustainable kaolinitic clay-based ceramics were developed using ternary blends of steel slag (SS), coal fly ash (CFA), and recycled waste glass bottle-derived powder (WGBP). The effects of WGBP content and firing temperature on phase evolution, microstructural development, densification behavior, and key physico-mechanical properties were systematically investigated. The results show that at intermediate temperatures (1000–1100 °C), the addition of 5 wt% WGBP promotes liquid-phase sintering, leading to enhanced densification, reduced water absorption, and compressive strengths up to 44 MPa, whereas higher glass contents at elevated temperature induce over-fluxing and pore entrapment, reducing strength despite comparable density. XRD, FTIR, and SEM analyses confirm the progressive vitrification and structural reorganization of the aluminosilicate matrix. The sustainability assessment identifies the 5 wt% WGBP formulation as the most balanced option, combining adequate mechanical performance with lower energy demand and CO2 emissions. Overall, the proposed approach provides a technically viable and resource-efficient route for the integrated utilization of multiple industrial wastes in construction ceramics.

AB - The valorization of industrial solid wastes into construction materials represents an important pathway toward resource efficiency and carbon reduction in the building sector. In this study, sustainable kaolinitic clay-based ceramics were developed using ternary blends of steel slag (SS), coal fly ash (CFA), and recycled waste glass bottle-derived powder (WGBP). The effects of WGBP content and firing temperature on phase evolution, microstructural development, densification behavior, and key physico-mechanical properties were systematically investigated. The results show that at intermediate temperatures (1000–1100 °C), the addition of 5 wt% WGBP promotes liquid-phase sintering, leading to enhanced densification, reduced water absorption, and compressive strengths up to 44 MPa, whereas higher glass contents at elevated temperature induce over-fluxing and pore entrapment, reducing strength despite comparable density. XRD, FTIR, and SEM analyses confirm the progressive vitrification and structural reorganization of the aluminosilicate matrix. The sustainability assessment identifies the 5 wt% WGBP formulation as the most balanced option, combining adequate mechanical performance with lower energy demand and CO2 emissions. Overall, the proposed approach provides a technically viable and resource-efficient route for the integrated utilization of multiple industrial wastes in construction ceramics.

UR - https://www.scopus.com/pages/publications/105033024817

UR - https://www.elibrary.ru/item.asp?id=91294722

UR - https://www.mendeley.com/catalogue/14677664-9657-3db7-a10a-e64c1a6cbcb6/

U2 - 10.1039/d6ra00763e

DO - 10.1039/d6ra00763e

M3 - Article

VL - 16

SP - 15051

EP - 15061

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 17

ER -