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Volume 11
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10.3390/app11010128
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Article

Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory

by
Zhiheng Deng
1,2,
Jingkai Zhou
1,2,
Beiquan Chen
3,
Xiaoyan Wen
1,2 and
Bing Liu
1,2,*
1
College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China
2
Key Laboratory of Disaster Prevention and Structural Safety of Ministry of Education, Nanning 530004, China
3
Guangzhou Design Institute, Guangzhou 510620, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(1), 128; https://doi.org/10.3390/app11010128
Submission received: 14 November 2020 / Revised: 17 December 2020 / Accepted: 22 December 2020 / Published: 24 December 2020
(This article belongs to the Special Issue Mechanical Performance of New Concrete Materials)
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Abstract

To better explore the mechanical properties of steel slag concrete (SSC) under triaxial compression, true triaxial tests were performed on SSC with three replacement ratios (30%, 70%, 100%) by a servo-controlled setup (TAWZ-5000/3000). Through the test, failure modes, peak stress, and corresponding strain of SSC are obtained. Results show that the failure modes of SSC are plate-splitting and slant-shear. Compared with the corresponding uniaxial strength, the triaxial compressive strength of SSC is significantly improved and is influenced by the stress ratio and the replacement ratio. Finally, based on unified strength theory, the strength failure criterion formula of SSC with different replacement rates under triaxial compression is given.
Keywords: steel slag concrete; triaxial strengths; mechanical properties; stress ratio steel slag concrete; triaxial strengths; mechanical properties; stress ratio

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MDPI and ACS Style

Deng, Z.; Zhou, J.; Chen, B.; Wen, X.; Liu, B. Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory. Appl. Sci. 2021, 11, 128. https://doi.org/10.3390/app11010128

AMA Style

Deng Z, Zhou J, Chen B, Wen X, Liu B. Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory. Applied Sciences. 2021; 11(1):128. https://doi.org/10.3390/app11010128

Chicago/Turabian Style

Deng, Zhiheng, Jingkai Zhou, Beiquan Chen, Xiaoyan Wen, and Bing Liu. 2021. "Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory" Applied Sciences 11, no. 1: 128. https://doi.org/10.3390/app11010128

APA Style

Deng, Z., Zhou, J., Chen, B., Wen, X., & Liu, B. (2021). Triaxial Compression Performance Research of Steel Slag Concrete on the Unified Strength Theory. Applied Sciences, 11(1), 128. https://doi.org/10.3390/app11010128

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