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Effect of Siliceous Components on Carbonation Reactivity of Regenerated Binding Materials
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Peng WANG1, 2, Yongjia HE1, 2, Linnu LU1, 3, Fazhou WANG1, 2, Shuguang HU1, 2
Journal of the Chinese Ceramic Society | 2021, 49(8) : 1722 - 1731
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Journal of the Chinese Ceramic Society | 2021, 49(8): 1722-1731
• Research Article •
Effect of Siliceous Components on Carbonation Reactivity of Regenerated Binding Materials
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Peng WANG1, 2, Yongjia HE1, 2, Linnu LU1, 3, Fazhou WANG1, 2, Shuguang HU1, 2
Affiliations
  • 1.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
  • 2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
  • 3.School of Science, Wuhan University of Technology, Wuhan 430070, China

    • WANG Peng (1996-), male, Master candidate. E-mail:

About Author:

WANG Peng (1996-), male, Master candidate. E-mail:

Published: 2021-08-20 doi: 10.14062/j.issn.0454-5648.20200891
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Siliceous components with different crystalline states (i.e., crystalline silica and amorphous silica fume) were used to adjust the content of free calcium oxide (f-CaO) in regenerated binding materials (RBMs). The effect of siliceous components on carbonation reactivity, mechanical properties, and microstructural characteristics of the final products was investigated. The results indicate that the matrix stability of the RBMs prepared with two siliceous components is significantly enhanced after carbonation. The compressive and flexural strengths of RBMs prepared with silica are 73.1 MPa and 21.0 MPa, respectively, and calcium carbonate crystals formed through the carbonation reaction are mainly vaterite and calcite. The compressive and flexural strengths increase to 106.3 MPa and 25.3 MPa at increment rates of 45.52% and 20.55%, respectively, when silica fume is used to prepare RBMs. In this case, calcium carbonate crystals are mainly vaterite, with a small content of calcite and aragonite. The improvement in the mechanical properties of RBMs with silica fume is due to the high carbonation reactivity, high degree of carbonation and dense structure.

regenerated binding materials  /  siliceous components  /  carbonation reactivity  /  microstructure
汪鹏, 何永佳, 吕林女, 王发洲, 胡曙光. 硅质组分对再生胶凝材料碳化反应活性的影响. 硅酸盐学报, 2021 , 49 (8) : 1722 -1731 . DOI: 10.14062/j.issn.0454-5648.20200891
Peng WANG, Yongjia HE, Linnu LU, Fazhou WANG, Shuguang HU. Effect of Siliceous Components on Carbonation Reactivity of Regenerated Binding Materials[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (8) : 1722 -1731 . DOI: 10.14062/j.issn.0454-5648.20200891
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Year 2021 volume 49 Issue 8
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Article Info
doi: 10.14062/j.issn.0454-5648.20200891
  • Receive Date：2020-11-29
  • Online Date：2026-10-30
  • Published：2021-08-20
Article Data
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History
  • Received：2020-11-29
  • Revised：2020-12-10
Funding
Affiliations
    1.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
    2.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
    3.School of Science, Wuhan University of Technology, Wuhan 430070, China

Corresponding:

HE Yongjia (1975-), 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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