Value-added utilization of phosphogypsum industrial by-products in producing green Ultra-High performance Concrete: Detailed reaction kinetics and microstructure evolution mechanism

被引：57

作者：

Dong, Enlai ^{[1
]}

Fu, Shiyuan ^{[2
]}

Wu, Chiqiu ^{[1
,3
]}

Lv, Wei ^{[3
]}

Liu, Xue ^{[1
]}

Zhang, Lingyan ^{[1
]}

Feng, Yuan ^{[2
]}

Shui, Zhonghe ^{[1
,5
]}

Yu, Rui ^{[1
,2
,3
,4
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Silicate Mat Architectures, Wuhan 430070, Peoples R China

[2] Wuhan Univ Technol, Int Sch Mat Sci & Engn, Wuhan 430070, Peoples R China

[3] Hubei Changyao New Mat Co Ltd, Yichang 443100, Peoples R China

[4] Guangxi Univ, Guangxi Key Lab Disaster Prevent & Engn Safety, Nanning 530004, Peoples R China

[5] Wuhan Univ Technol, Adv Engn Technol Res Inst Zhongshan City, Xiangxing Rd 6, Zhongshan 528400, Guangdong, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2023年 / 389卷

基金：

中国国家自然科学基金;

关键词：

Phosphogypsum Based Ultra-High Performance; Concrete (PG-UHPC); Hydration process; Microstructure evolution; Cleaner production; Environmental sustainability; FIBER-REINFORCED CONCRETE; CEMENT PASTE; PORE STRUCTURE; BEHAVIOR;

D O I：

10.1016/j.conbuildmat.2023.131726

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents an effective method for producing green ultra-high-performance concrete containing phosphogypsum aggregates to meet the demand for a sustainable environment. More exactly, the low field nuclear magnetic technology (LF-NMR), nanoindentation, and Backscattering images (BSEM) are used to clarify the hydration process and microstructure evolution of phosphogypsum-based ultra-high performance concrete (PGUHPC). The results indicate that the mechanical performance of PG-UHPC decreases slightly as phosphogypsum aggregate content increases, but it is still capable of meeting the requirements of applications. Moreover, the introduction of phosphogypsum aggregate in UHPC accelerates water migration and directly affects its hydration degree. Lastly, a reasonable sulfur content can limit the degradation of interfacial transition zone and reduce the risk of matrix cracking in PG-UHPC. To conclude, advanced composite building materials with low environmental burden are prepared as a reference for the development of green ultra-high-performance concrete.

引用

页数：16

共 71 条

[1] Recent trends in ultra-high performance concrete (UHPC): Current status, challenges, and future prospects [J].

Amran, Mugahed ;

Huang, Shan-Shan ;

Onaizi, Ali M. ;

Makul, Natt ;

Abdelgader, Hakim S. ;

Ozbakkaloglu, Togay .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 352

[2] Promoting coordinative development of phosphogypsum resources reuse through a novel integrated approach: A case study from China [J].

Cao, Jinze ;

Wang, Zeying ;

Ma, Xiaohan ;

Yang, Xiangdong ;

Zhang, Xiaohong ;

Pan, Hengyu ;

Wu, Jun ;

Xu, Min ;

Lin, Lili ;

Zhang, Yanzong ;

Xiao, Yinlong ;

Luo, Hongbin .

JOURNAL OF CLEANER PRODUCTION, 2022, 374

[3] Prediction of self-desiccation in low water-to-cement ratio pastes based on pore structure evolution [J].

Chen, Hui ;

Wyrzykowski, Mateusz ;

Scrivener, Karen ;

Lura, Pietro .

CEMENT AND CONCRETE RESEARCH, 2013, 49 :38-47

[4] Influencing factors of mechanical and thermal conductivity of foamed phosphogypsum-based composite cementitious materials [J].

Chen, Mingsheng ;

Liu, Peng ;

Kong, Dewen ;

Wang, Yi ;

Wang, Jingdong ;

Huang, Yansen ;

Yu, Ke ;

Wu, Ningbo .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 346

[5] Hydration reaction and microstructural characteristics of hemihydrate phosphogypsum with variable pH [J].

Chen, Xuemei ;

Wang, Qingyuan ;

Wu, Qihong ;

Xie, Xiaoli ;

Tang, Shirong ;

Yang, Genming ;

Luo, Li ;

Yuan, Hongyi .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 316

[6] Fractionation and fluxes of metals and radionuclides during the recycling process of phosphogypsum wastes applied to mineral CO2 sequestration [J].

Contreras, M. ;

Perez-Lopez, R. ;

Gazquez, M. J. ;

Morales-Florez, V. ;

Santos, A. ;

Esquivias, L. ;

Bolivar, J. P. .

WASTE MANAGEMENT, 2015, 45 :412-419

[7] Phosphogypsum as additive for foamed bitumen manufacturing used in asphalt paving [J].

Cuadri, A. A. ;

Perez-Moreno, S. ;

Altamar, C. L. ;

Navarro, F. J. ;

Bolivar, J. P. .

JOURNAL OF CLEANER PRODUCTION, 2021, 283

[8] Effects of Ca(OH)2 on the early hydration, macro-performance and environmental risks of the calcined phosphogypsum [J].

Cui, Yong ;

Wang, Heng ;

Wang, Dengquan ;

Wang, Qiang .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 324

[9] Physical properties, strength, and impurities stability of phosphogypsum-based cold-bonded aggregates [J].

Ding, Chao ;

Sun, Tao ;

Shui, Zhonghe ;

Xie, Yifan ;

Ye, Zhiyi .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 331

[10] Modified mineral carbonation of phosphogypsum for CO2 sequestration [J].

Ding, Wenjin ;

Chen, Qiuju ;

Sun, Hongjuan ;

Peng, Tongjiang .

JOURNAL OF CO2 UTILIZATION, 2019, 34 :507-515

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