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Properties and Microstructure of Fiberboard Prepared from CO2 and Magnesium Slag
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Songhui LIU, Cheng ZHANG, Xuemao GUAN
Journal of the Chinese Ceramic Society | 2023, 51(9) : 2166 - 2178
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Journal of the Chinese Ceramic Society | 2023, 51(9): 2166-2178
• Research Articles •
Properties and Microstructure of Fiberboard Prepared from CO2 and Magnesium Slag
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Songhui LIU, Cheng ZHANG, Xuemao GUAN
Affiliations
  • School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China

    • LIU Songhui (1991-), male, Ph.D., Associate Professor. E-mail:

About Author:

LIU Songhui (1991-), male, Ph.D., Associate Professor. E-mail:

Published: 2023-06-19 doi: 10.14062/j.issn.0454-5648.20230107
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Magnesium slag is a solid waste from the refining process of magnesium metal, facing problems such as low activity and poor volumetric stability. In this study, a CO2 sequestration fiberboard (CFB) was prepared with magnesium slag and pulp fiber as the raw materials, and the effects of autoclaving curing, carbonation curing and carbonation-autoclaving sequential curing on the properties of CFB and the interfacial microstructure between magnesium slag and pulp fibers were systematically investigated. The results show that the CFB after only autoclaving curing had poor volumetric stability and flexural strength of 4.5 MPa. While the flexural strength and CO2 uptake of CFB reached 17.3 MPa and 14.4% respectively after 8 hours of carbonation curing. Moreover, the flexural strength of CFB can be further increased to 20.2 MPa by carbonation-autoclaving sequential curing. The microstructure and nanoindentation results show that calcium carbonate crystals, including aragonite and calcite, together with C-S-H filled the pores and enhanced the interfacial micromechanical properties between the pulp fiber and the hardened paste, which is the main reason for the high flexural strength of CFB after carbonation-autoclave curing.

magnesium slag  /  fiberboard  /  carbon dioxide sequestration  /  calcium carbonate  /  nanoindentation
刘松辉, 张程, 管学茂. CO2协同镁渣基固废制备纤维板及其性能与微结构. 硅酸盐学报, 2023 , 51 (9) : 2166 -2178 . DOI: 10.14062/j.issn.0454-5648.20230107
Songhui LIU, Cheng ZHANG, Xuemao GUAN. Properties and Microstructure of Fiberboard Prepared from CO2 and Magnesium Slag[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (9) : 2166 -2178 . DOI: 10.14062/j.issn.0454-5648.20230107
Appendix
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Year 2023 volume 51 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20230107
  • Receive Date：2023-02-28
  • Online Date：2026-10-19
  • Published：2023-06-19
Article Data
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History
  • Received：2023-02-28
  • Revised：2023-04-03
Funding
Affiliations
    School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China

Corresponding:

GUAN Xuemao (1965-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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