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Calcination Characteristics and Performance of Portland Cement Clinker with Hardened Cement Paste
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Yunpeng LIU1, Xianxin TONG1, Chao YANG1, 2, Chuanlin HU1, Linnu LU1, 3, Shuguang HU1
Journal of the Chinese Ceramic Society | 2022, 50(6) : 1616 - 1625
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Journal of the Chinese Ceramic Society | 2022, 50(6): 1616-1625
• Research Articles •
Calcination Characteristics and Performance of Portland Cement Clinker with Hardened Cement Paste
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Yunpeng LIU1, Xianxin TONG1, Chao YANG1, 2, Chuanlin HU1, Linnu LU1, 3, Shuguang HU1
Affiliations
  • 1.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
  • 2.Beijing Triumph International Engineering Co., Ltd, Beijing 10024
  • 3.School of Science, Wuhan University of Technology, Wuhan 430070, China

    • LIU Yunpeng (1986-), male, Ph.D., Associate Professor. E-mail:

About Author:

LIU Yunpeng (1986-), male, Ph.D., Associate Professor. E-mail:

Published: 2022-06-20 doi: 10.14062/j.issn.0454-5648.20210859
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To investigate the influence of hardened cement paste on the calcination and properties of Portland clinker, the calcination characteristics of hardened cement paste at 1 000 - 1 450 ℃ were investigated. The effects of hardened cement paste content (i.e., 0%, 10%, 20%, and 30%) and calcination temperature (i.e., 1 350, 1 400 ℃ and 1 450 ℃) on the sintering and properties of Portland cement clinker at the same target values were also studied. The results show that C3S phase is formed again after the calcination of hardened cement paste at 1 300 ℃. For a partial replacement of raw cement material with harden cement paste, the temperature of a liquid phase appears and the apparent activation energy decreases. Its optimal dosage is 20%. The raw cement material with a higher content of harden cement paste can stabilize the crystal formation of C2S, resulting in a difficulty of C3S formation. Also, the crystal formation of C3S changes from R form to M form. The incorporation of an appropriate amount of hardened cement paste (i.e., 20%) improves the mechanical properties of clinker in later stage, which may be related to the difference in C3S crystal form, C2S activity and the development quality of cement clinker.

hardened cement paste  /  cement clinker  /  thermal decomposition  /  hydration activity
刘云鹏, 童显昕, 杨超, 胡传林, 吕林女, 胡曙光. 用硬化水泥石配料的硅酸盐水泥熟料烧成特性与力学性能. 硅酸盐学报, 2022 , 50 (6) : 1616 -1625 . DOI: 10.14062/j.issn.0454-5648.20210859
Yunpeng LIU, Xianxin TONG, Chao YANG, Chuanlin HU, Linnu LU, Shuguang HU. Calcination Characteristics and Performance of Portland Cement Clinker with Hardened Cement Paste[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (6) : 1616 -1625 . DOI: 10.14062/j.issn.0454-5648.20210859
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Year 2022 volume 50 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20210859
  • Receive Date：2021-10-06
  • Online Date：2026-10-22
  • Published：2022-06-20
Article Data
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History
  • Received：2021-10-06
  • Revised：2021-10-21
Funding
Affiliations
    1.State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
    2.Beijing Triumph International Engineering Co., Ltd, Beijing 10024
    3.School of Science, Wuhan University of Technology, Wuhan 430070, China

Corresponding:

HU Shuguang (1957-), 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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