Experimental and Numerical Investigation on the Mechanical Properties of Concrete with High Volumes of Modified Phosphogypsum

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成果类型：

期刊论文

作者：

Cheng, Xiang;Li, Qizhi;Liu, Peng;Huang, Jingxiang;Wang, Lingling;...

通讯作者：

Liu, P

作者机构：

[Chen, Ying; Huang, Jingxiang; Cheng, Xiang; Liu, Lei; Wang, Shuaifeng; Liu, Peng] Cent South Univ, Sch Civil Engn, Changsha 410000, Peoples R China.

[Huang, Jingxiang; Cheng, Xiang; Liu, Lei; Yu, Zhiwu; Wang, Shuaifeng; Liu, Peng] Natl Engn Res Ctr High Speed Railway Construct, Changsha 410000, Peoples R China.

[Li, Qizhi; Shao, Guangqiang] China Construct Second Engn Bur Ltd, Beijing 100160, Peoples R China.

[Yu, Zhiwu; Liu, Peng] China Railway Grp Ltd, Beijing 100039, Peoples R China.

[Wang, Lingling] Guizhou Univ, Sch Civil Engn, Guiyang 550025, Peoples R China.

通讯机构：

[Liu, P ] C

Cent South Univ, Sch Civil Engn, Changsha 410000, Peoples R China.

Natl Engn Res Ctr High Speed Railway Construct, Changsha 410000, Peoples R China.

China Railway Grp Ltd, Beijing 100039, Peoples R China.

语种：

英文

关键词：

high-temperature modified phosphogypsum-based concrete;mechanical properties;mesoscale model;microstructure

期刊：

Coatings

ISSN：

2079-6412

年：

2025

卷：

期：

DOI：

10.3390/coatings15010065

基金类别：

National Natural Science Foundation of China; Science and Technology Research and Development Program Project of China Railway Group Limited [2020-Special-02, 2021-Special-08, 2022-Special-09, 2023-Major projects-07, 2021-Special-02, 2022-Key-46]; Science and Technology Research and Development Subject of China Construction Second Engineering Bureau Ltd. [2024ZC120012, 2023ZX12001]; Natural Science Foundation for Distinguished Young Scholars of Hunan Province [2022JJ10075]; Hunan Science and Technology Plan Project [2023SK2014]; [52178182]; [52108262]; [U1934217]

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

The effects of high-temperature modified phosphogypsum (HPG), incorporated at contents of 40%, 50%, and 60%, on the compressive strength and elastic modulus of mortar and concrete were investigated. Additionally, the influence of graded granulated blast furnace slag powder (GGBS), quicklime, and silica fume on the mechanical properties of HPG-based mortar (HPGM) and HPG-based concrete (HPGC) was discussed. Moreover, the microstructure of HPGM was analyzed using scanning electron microscopy (SEM). A two-dimensional mesoscale model of HPGC was developed to predict how variations in HPG content, ...

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Experimental and Numerical Investigation on the Mechanical Properties of Concrete with High Volumes of Modified Phosphogypsum

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