As a green lightweight aggregate, solid waste-based ceramsite was significant for decarbonizing building materials. This review systematically summarized its preparation processes, centered on sintered and non-sintered technologies, performance regulation mechanisms, and applications in lightweight concrete. Existing research indicated that raw material formulation, additive type, and curing process collectively governed macroscopic properties such as apparent density, strength, and water absorption by controlling the phase composition and microstructure of ceramsite. In terms of environmental benefits, solid waste-based ceramsite exhibited notable heavy metal immobilization capacity and reduced energy consumption and carbon footprint by utilizing inherent energy from solid waste and optimizing sintering processes. Currently, sintered ceramsite demonstrated superior strength and durability, while non-sintered ceramsite offered advantages of low energy consumption and simple processing, though its strength and functionality required further enhancement. Future research was suggested to focus on multi-property synergy mechanisms, long-term durability assessment, and low-temperature efficient activation technologies to promote the large-scale application of solid waste-based ceramsite in construction materials.
Citation: Haipeng Liu, Nanyan Hu, Qigao Li, Shengwen Yang, Yicheng Ye, Jie Wang, Hongping Wang. Preparation and application of lightweight and high-strength ceramsite derived from solid waste in lightweight concrete: A review[J]. AIMS Materials Science, 2025, 12(6): 1176-1214. doi: 10.3934/matersci.2025055
As a green lightweight aggregate, solid waste-based ceramsite was significant for decarbonizing building materials. This review systematically summarized its preparation processes, centered on sintered and non-sintered technologies, performance regulation mechanisms, and applications in lightweight concrete. Existing research indicated that raw material formulation, additive type, and curing process collectively governed macroscopic properties such as apparent density, strength, and water absorption by controlling the phase composition and microstructure of ceramsite. In terms of environmental benefits, solid waste-based ceramsite exhibited notable heavy metal immobilization capacity and reduced energy consumption and carbon footprint by utilizing inherent energy from solid waste and optimizing sintering processes. Currently, sintered ceramsite demonstrated superior strength and durability, while non-sintered ceramsite offered advantages of low energy consumption and simple processing, though its strength and functionality required further enhancement. Future research was suggested to focus on multi-property synergy mechanisms, long-term durability assessment, and low-temperature efficient activation technologies to promote the large-scale application of solid waste-based ceramsite in construction materials.
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Figures(10) / Tables(3)
Haipeng Liu, Nanyan Hu, Qigao Li, Shengwen Yang, Yicheng Ye, Jie Wang, Hongping Wang. Preparation and application of lightweight and high-strength ceramsite derived from solid waste in lightweight concrete: A review[J]. AIMS Materials Science, 2025, 12(6): 1176-1214. doi: 10.3934/matersci.2025055
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