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On-line Access: 2023-03-31

Received: 2022-09-08

Revision Accepted: 2023-01-21

Crosschecked: 2023-03-31

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Citations:  Bibtex RefMan EndNote GB/T7714


Lifeng FAN


Yan XI


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Journal of Zhejiang University SCIENCE A

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Optimal slag content for geopolymer composites under freeze-thaw cycles with different freezing temperatures

Author(s):  Lifeng FAN, Weiliang ZHONG, Guang WANG, Yan XI

Affiliation(s):  Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China

Corresponding email(s):  xiyan@bjut.edu.cn

Key Words:  Geopolymer composites; Freeze-thaw cycle; Freezing temperature; Slag content

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Lifeng FAN, Weiliang ZHONG, Guang WANG, Yan XI. Optimal slag content for geopolymer composites under freeze-thaw cycles with different freezing temperatures[J]. Journal of Zhejiang University Science A, 2023, 24(6): 366-376.

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author="Lifeng FAN, Weiliang ZHONG, Guang WANG, Yan XI",
journal="Journal of Zhejiang University Science A",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Optimal slag content for geopolymer composites under freeze-thaw cycles with different freezing temperatures
%A Lifeng FAN
%A Weiliang ZHONG
%A Guang WANG
%A Yan XI
%J Journal of Zhejiang University SCIENCE A
%V 24
%N 4
%P 366-376
%@ 1673-565X
%D 2023
%I Zhejiang University Press & Springer

T1 - Optimal slag content for geopolymer composites under freeze-thaw cycles with different freezing temperatures
A1 - Lifeng FAN
A1 - Weiliang ZHONG
A1 - Guang WANG
A1 - Yan XI
J0 - Journal of Zhejiang University Science A
VL - 24
IS - 4
SP - 366
EP - 376
%@ 1673-565X
Y1 - 2023
PB - Zhejiang University Press & Springer
ER -

Improving the freeze-thaw resistance of geopolymers is of great significance to ensure their durability in cold regions. This study presents an experimental investigation of optimal slag content for geopolymer composites under freeze-thaw cycles with different freezing temperatures. Firstly, five kinds of geopolymer composites with 10.0%, 20.0%, 30.0%, 40.0%, and 50.0% slag contents and 1.0% fiber content were prepared. Freeze-thaw cycle tests at -1.0 °C, -20.0 °C, and -40.0 °C were carried out for these geopolymer composites and their physical and mechanical properties after the freeze-thaw cycle were tested. The results show that the porosity of the geopolymer composites decreases as the slag content increases. Their mass loss ratio and strength loss ratio increase gradually as the freezing temperature decreases. The mass loss ratio and strength loss ratio of geopolymer composites after freeze-thaw cycles all decrease as the slag content increases. Considering the physical and mechanical properties of geopolymers after freeze-thaw cycles, the optimal slag contents are 40.0% and 50.0%.




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