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Preparation of Low-Shrinkage and Radiation-Shielding Ultra-High Performance Concrete and Its Performance Formation Mechanism
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Gaozhan ZHANG1, 2, Mingming WU1, Jun YANG1, 2, Qingjun DING3, Dongshuai HOU4, Chao DENG3
Journal of the Chinese Ceramic Society | 2021, 49(11) : 2405 - 2415
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Journal of the Chinese Ceramic Society | 2021, 49(11): 2405-2415
• Special Issue on Ultra-HiHh HerHorHance Concrete Ⅱ •
Preparation of Low-Shrinkage and Radiation-Shielding Ultra-High Performance Concrete and Its Performance Formation Mechanism
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Gaozhan ZHANG1, 2, Mingming WU1, Jun YANG1, 2, Qingjun DING3, Dongshuai HOU4, Chao DENG3
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
  • 4.School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, China

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

About Author:

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

Published: 2021-11-20 doi: 10.14062/j.issn.0454-5648.20210314
Outline
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An ultra-high performance concrete (UHPC) with high strength, low shrinkage, strong radiation shielding and impact resistance was prepared, and its performance formation mechanism was analyzed. The results show that the as-prepared low shrinkage radiation shielding UHPC has 28-d compressive strength of > 120 MPa, 28-d flexural strength of > 20 MPa, 180-d shrinkage rate of < 385×10-6, radiation shielding efficiency of 85% and energy consumption for dynamic impact cracking of 5 600 kJ/m3. The high performance of this UHPC is mainly due to the dense-packing design, interfacial strengthening effect of titanium-rich heavyweight slag sand and "pin structure", the combination of internal curing of titanium-rich heavyweight slag sand and shrinkage compensation of expansive agent, the radiation shielding effect of Ba and Fe elements in barite powder/sand, titanium-rich heavyweight slag sand and steel fiber, and the combining toughening effect of steel fiber and polymer fiber.

titanium-rich heavyweight slag sand  /  ultra-high performance concrete  /  volume stability  /  radiation shielding properties  /  impact resistance
张高展, 吴明明, 杨军, 丁庆军, 侯东帅, 邓超. 低收缩防辐射超高性能混凝土的制备及其性能形成机理. 硅酸盐学报, 2021 , 49 (11) : 2405 -2415 . DOI: 10.14062/j.issn.0454-5648.20210314
Gaozhan ZHANG, Mingming WU, Jun YANG, Qingjun DING, Dongshuai HOU, Chao DENG. Preparation of Low-Shrinkage and Radiation-Shielding Ultra-High Performance Concrete and Its Performance Formation Mechanism[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (11) : 2405 -2415 . DOI: 10.14062/j.issn.0454-5648.20210314
Appendix
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Year 2021 volume 49 Issue 11
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Article Info
doi: 10.14062/j.issn.0454-5648.20210314
  • Receive Date：2021-04-26
  • Online Date：2026-10-30
  • Published：2021-11-20
Article Data
Affiliations
History
  • Received：2021-04-26
  • Revised：2021-07-04
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
    4.School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, 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
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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