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Preparation and Formation Mechanism of Lightweight Ultra-high Performance Concrete
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Gaozhan ZHANG1, 2, Jingcheng GE1, Qingjun DING3, Jun YANG1, 2, Weiheng XIANG3, Jun HU3
Journal of the Chinese Ceramic Society | 2021, 49(2) : 381 - 390
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Journal of the Chinese Ceramic Society | 2021, 49(2): 381-390
• Research Article •
Preparation and Formation Mechanism of Lightweight Ultra-high Performance Concrete
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Gaozhan ZHANG1, 2, Jingcheng GE1, Qingjun DING3, Jun YANG1, 2, Weiheng XIANG3, Jun HU3
Affiliations
  • 1.School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, China
  • 2.Anhui Province Key Laboratory of Advanced Building Materials, Hefei 230022, China
  • 3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

    • ZHANG Gaozhan (1981-), male, Ph.D., Associate Professor. E-mail:

About Author:

ZHANG Gaozhan (1981-), male, Ph.D., Associate Professor. E-mail:

Published: 2021-02-20 doi: 10.14062/j.issn.0454-5648.20200369
Outline
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Lightweight ultra-high performance concrete (LUHPC) was prepared with pre-wetting lightweight aggregate, Portland cement, silica fume, fly ash microsphere, steel fiber and expansion agent as raw materials. The influencing factors on the performance of LUHPC and the developing mechanism were investigated. The results show that the as-prepared LUHPC has a superior performance. The LUHPC can be self-compacting and has a low dry apparent density of 2 040 kg/m3. The 28-d compressive strength and flexural strength are 120 MPa and 18 MPa, respectively. The bending toughness index is 21.8, and the 56-d shrinkage rate is 2.62×10-4. The superior performance of the LUHPC is mainly due to the ball effect of fly ash microsphere, the lightening, internal curing, "arch-shell" structure effects of pre-wetting lightweight aggregate and the shrinkage-compensating effect of expansion agent.

lightweight aggregate  /  ultra-high performance concrete  /  mechanical properties  /  volume stability  /  interfacial transition zone
张高展, 葛竞成, 丁庆军, 杨军, 向玮衡, 胡俊. 轻质超高性能混凝土的制备及性能形成机理. 硅酸盐学报, 2021 , 49 (2) : 381 -390 . DOI: 10.14062/j.issn.0454-5648.20200369
Gaozhan ZHANG, Jingcheng GE, Qingjun DING, Jun YANG, Weiheng XIANG, Jun HU. Preparation and Formation Mechanism of Lightweight Ultra-high Performance Concrete[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (2) : 381 -390 . DOI: 10.14062/j.issn.0454-5648.20200369
Appendix
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Year 2021 volume 49 Issue 2
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Article Info
doi: 10.14062/j.issn.0454-5648.20200369
  • Receive Date：2020-05-25
  • Online Date：2026-10-30
  • Published：2021-02-20
Article Data
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History
  • Received：2020-05-25
  • Revised：2020-06-16
Funding
Affiliations
    1.School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei 230601, China
    2.Anhui Province Key Laboratory of Advanced Building Materials, Hefei 230022, China
    3.School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China

Corresponding:

DING Qingjun (1962-), 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
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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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