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Effect of CLDH on Microstructure and Properties of Slag-Based Geopolymer
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Zhengning ZHOU1, Zuhua ZHANG1, 2, Yulin DENG1, Jie HU3, Qijun YU3, Caijun SHI1
Journal of the Chinese Ceramic Society | 2023, 51(9) : 2138 - 2152
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Journal of the Chinese Ceramic Society | 2023, 51(9): 2138-2152
• Research Articles •
Effect of CLDH on Microstructure and Properties of Slag-Based Geopolymer
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Zhengning ZHOU1, Zuhua ZHANG1, 2, Yulin DENG1, Jie HU3, Qijun YU3, Caijun SHI1
Affiliations
  • 1.Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082
  • 2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 201804
  • 3.School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640

    • ZHOU Zhengning (1997-), female, Master Candidate. E-mail:

About Author:

ZHOU Zhengning (1997-), female, Master Candidate. E-mail:

Published: 2023-07-06 doi: 10.14062/j.issn.0454-5648.20230286
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Geopolymer has attracted attention for the process features of energy saving, reduced carbon emissions and excellent properties. In this paper, we proposed a concept of phase engineering for geopolymer, and demonstrated the utilization of calcined layered double hydroxides (CLDHs). The effects of microstructure and property in slag-based geopolymer were analyzed. The rehydration reaction and nucleation mechanism of CLDH were revealed by high-energy X-ray synchrotron radiation, pair distribution function calculation, transmission electron microscopy and other characterization techniques, thus improving the short-distance order of the gel and the crystal-to-binder ratio. For the macroscopic properties, the mechanical strength and water retention of geopolymer with CLDH are improved, and the chemical shrinkage and dry shrinkage of geopolymer are decreased. Incorporation of CLDH as a technical approach to improve the microstructure of geopolymer can remedy the performance defects of geopolymer, and is thus an effective approach for manufacturing high-performance geopolymer products.

phase engineering  /  calcined layered double hydroxides  /  geopolymer  /  microstructure  /  shrinkage  /  crystal-to-gel ratio
周正宁, 张祖华, 邓毓琳, 胡捷, 余其俊, 史才军. CLDH对矿渣基地聚合物微观结构和性能的影响. 硅酸盐学报, 2023 , 51 (9) : 2138 -2152 . DOI: 10.14062/j.issn.0454-5648.20230286
Zhengning ZHOU, Zuhua ZHANG, Yulin DENG, Jie HU, Qijun YU, Caijun SHI. Effect of CLDH on Microstructure and Properties of Slag-Based Geopolymer[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (9) : 2138 -2152 . DOI: 10.14062/j.issn.0454-5648.20230286
Appendix
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Year 2023 volume 51 Issue 9
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Article Info
doi: 10.14062/j.issn.0454-5648.20230286
  • Receive Date：2023-04-30
  • Online Date：2026-10-19
  • Published：2023-07-06
Article Data
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History
  • Received：2023-04-30
  • Revised：2023-05-20
Funding
Affiliations
    1.Key Laboratory for Green & Advanced Civil Engineering Materials and Application Technology of Hunan Province, College of Civil Engineering, Hunan University, Changsha 410082
    2.Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of Materials Science and Engineering, Tongji University, Shanghai 201804
    3.School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640

Corresponding:

ZHANG Zuhua (1983-), male, Ph.D, Professor; E-mail:
SHI Caijun (1963-), male, Ph.D., Professor.
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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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