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Correction: Bassini, E.; et al. Study of the Effects of Aging Treatment on Astroloy Processed via Hot Isostatic Pressing. Materials 2019, 12, 1517
Open AccessArticle

Experimental Investigation on the Mechanical Properties of Self-Compacting Concrete under Uniaxial and Triaxial Stress

by 1,2,3,*,†, 1,†, 1, 1 and 1
1
College of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
2
Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation, Yinchuan 750021, China
3
Engineering Research Center for Efficient Utilization of water Resources in Modern Agriculture in Arid Regions, Yinchuan 750021, China
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work and should be considered co-first authors.
Materials 2020, 13(8), 1830; https://doi.org/10.3390/ma13081830
Received: 31 March 2020 / Revised: 10 April 2020 / Accepted: 10 April 2020 / Published: 13 April 2020
(This article belongs to the Section Construction and Building Materials)
To explore the influence of fly ash (FA) and silica fume (SF) on the mechanical properties of self-compacting concrete (SCC) under uniaxial and triaxial, the compressive strength test, splitting strength test, ultrasonic testing test, and triaxial test were performed in this paper. The results show that the 3 days compressive strength and splitting strength of SCC decreased with the increase of FA substitution rate. The 28 days, 56 days, and 91 days compressive strength and splitting strength of SCC increased first and then decreased with the increase of FA substitution rate. The peak stress and peak strain of SCC gradually increased with the increase of confining pressure. The peak stress and strain of SCC increased first and then decreased with the increase of FA substitution rate. Moreover, the relationship models between compressive strength and splitting strength, between compressive strength and amplitude, between peak stress, peak strain and confining pressure under different FA substitution rates were proposed. As a conclusion, the addition of SF can increase the strength of SCC obviously. Under uniaxial stress, SCC failure mode is splitting failure, under triaxial stress, SCC failure mode is shear failure. Based on the Mohr-Coulomb strength theory, the failure criterion of SCC with FA and SF was discussed. View Full-Text
Keywords: self-compacting concrete; fly ash; mechanical properties; triaxial test; failure criterion self-compacting concrete; fly ash; mechanical properties; triaxial test; failure criterion
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MDPI and ACS Style

Li, H.; Yin, J.; Yan, P.; Sun, H.; Wan, Q. Experimental Investigation on the Mechanical Properties of Self-Compacting Concrete under Uniaxial and Triaxial Stress. Materials 2020, 13, 1830. https://doi.org/10.3390/ma13081830

AMA Style

Li H, Yin J, Yan P, Sun H, Wan Q. Experimental Investigation on the Mechanical Properties of Self-Compacting Concrete under Uniaxial and Triaxial Stress. Materials. 2020; 13(8):1830. https://doi.org/10.3390/ma13081830

Chicago/Turabian Style

Li, Hongbo; Yin, Jianguang; Yan, Pengfei; Sun, Hao; Wan, Qingqing. 2020. "Experimental Investigation on the Mechanical Properties of Self-Compacting Concrete under Uniaxial and Triaxial Stress" Materials 13, no. 8: 1830. https://doi.org/10.3390/ma13081830

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