Flexural and Tensile Strength of Ultra-High-Performance Concrete with ZnPh-Treated Steel Fibers
Publication: Journal of Materials in Civil Engineering
Volume 32, Issue 10
Abstract
This study demonstrates the use of novel zinc phosphate (ZnPh)-treated steel fibers in ultra-high-performance concrete (UHPC), replacing the commonly used steel fibers. The effects of ZnPh-treated steel fibers on tensile and flexural strengths of UHPC were investigated through flexural and direct tension tests. The results showed that first cracking strengths were reduced by 9.7% and 0.5% in the flexural and direct tension test specimens, respectively. The ultimate strengths were increased by 16.8% and 18% in the flexural and direct tension test specimens, respectively. Also, in the direct tension test, the ultimate strain at the ultimate strength was increased by 113.1%. scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) analyses revealed that a weaker interface exists between the ZnPh covering and the fiber. This interface resulted in reduction of first cracking strengths, whereas the ZnPh covering improved ultimate strengths due to an increase in friction between the fiber and matrix after the ZnPh peeled off.
Get full access to this article
View all available purchase options and get full access to this article.
Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research is sponsored by the National Natural Science Foundation of China (Grant Nos. 51578226 and 51778221), Major Research Project of Industrial Technology of Guangzhou (Grant No. 201902010019), and Research Project of Beijing Municipal Bridge Maintenance Management Group Co. Ltd. (Grant No. 2018-04). These supports are gratefully acknowledged.
References
AFNOR (Association Française de Normalisation). 2016. Bétons fibrés à ultra-hautes performances: Spécification, performance, production et conformité. La Plaine St-Denis, France: AFNOR.
Chan, Y. W., and S. H. Chu. 2004. “Effect of silica fume on steel fiber bond characteristics in reactive powder concrete.” Cem. Concr. Res. 34 (7): 1167–1172. https://doi.org/10.1016/j.cemconres.2003.12.023.
Dupont, D., and L. Vandewalle. 2005. “Distribution of steel fibres in rectangular sections.” Cem. Concr. Compos. 27 (3): 391–398. https://doi.org/10.1016/j.cemconcomp.2004.03.005.
Graybeal, B. 2006. Material property characterization of ultra-high performance concrete. Washington, DC: Federal Highway Administration.
Graybeal, B. 2011. “Ultra-high performance concrete.” In Research, development, and technology Turner-Fairbank Highway Research Center. Washington, DC: Federal Highway Administration.
Guo, W., W. Fan, X. Shao, D. Shen, and B. Chen. 2018. “Constitutive model of ultra-high-performance fiber-reinforced concrete for low-velocity impact simulations.” Compos. Struct. 185 (Nov): 307–326. https://doi.org/10.1016/j.compstruct.2017.11.022.
Kim, D. J., S. H. Park, G. S. Ryu, and K. T. Koh. 2011. “Comparative flexural behavior of hybrid ultra high performance fiber reinforced concrete with different macro fibers.” Constr. Build. Mater. 25 (11): 4144–4155. https://doi.org/10.1016/j.conbuildmat.2011.04.051.
Laranjeira, F., A. Aguado, C. Molins, S. Grünewald, J. Walraven, and S. Cavalaro. 2012. “Framework to predict the orientation of fibers in FRC: A novel philosophy.” Cem. Concr. Res. 42 (6): 752–768. https://doi.org/10.1016/j.cemconres.2012.02.013.
Lu, Z., J. Yao, and C. K. Y. Leung. 2019. “Using graphene oxide to strengthen the bond between PE fiber and matrix to improve the strain hardening behavior of SHCC.” Cem. Concr. Res. 126 (May): 105899. https://doi.org/10.1016/j.cemconres.2019.105899.
Miller, H. D., A. Akbarnezhad, S. Mesgari, and S. J. Foster. 2019. “Performance of oxygen/argon plasma-treated steel fibres in cement mortar.” Cem. Concr. Compos. 97 (Dec): 24–32. https://doi.org/10.1016/j.cemconcomp.2018.12.015.
Park, S. H., D. J. Kim, G. S. Ryu, and K. T. Koh. 2012. “Tensile behavior of ultra high performance hybrid fiber reinforced concrete.” Cem. Concr. Compos. 34 (2): 172–184. https://doi.org/10.1016/j.cemconcomp.2011.09.009.
Soulioti, D. V., N. M. Barkoula, F. Koutsianopoulos, N. Charalambakis, and T. E. Matikas. 2013. “The effect of fibre chemical treatment on the steel fibre/cementitious matrix interface.” Constr. Build. Mater. 40 (Mar): 77–83. https://doi.org/10.1016/j.conbuildmat.2012.09.111.
Sovják, R., P. Máca, and T. Imlauf. 2017. “Effect of fibre length on the fracture energy of UHPFRC.” Procedia Eng. 193: 74–79. https://doi.org/10.1016/j.proeng.2017.06.188.
Stengel, T. 2009. “Effect of surface roughness on the steel fibre bonding in ultra high performance concrete (UHPC).” In Proc., Nanotechnology in Construction 3. Berlin: Springer.
Sugama, T., N. Carciello, L. E. Kukacka, and G. Gray. 1992. “Interface between zinc phosphate-deposited steel fibres and cement paste.” J. Mater. Sci. 27 (11): 2863–2872. https://doi.org/10.1007/BF01154093.
Yoo, D. Y., S. Kim, G. J. Park, J. J. Park, and S. W. Kim. 2017. “Effects of fiber shape, aspect ratio, and volume fraction on flexural behavior of ultra-high-performance fiber-reinforced cement composites.” Compos. Struct. 174 (Aug): 375–388. https://doi.org/10.1016/j.compstruct.2017.04.069.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 32 • Issue 10 • October 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Nov 11, 2019
Accepted: Mar 24, 2020
Published online: Jul 22, 2020
Published in print: Oct 1, 2020
Discussion open until: Dec 22, 2020
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.