Double Edge Wedge Splitting Test to Characterize the Design Postcracking Parameters of Fiber-Reinforced Concrete Subjected to High Temperatures
This article has been corrected.
VIEW CORRECTIONPublication: Journal of Materials in Civil Engineering
Volume 33, Issue 5
Abstract
The determination of the postcrack tensile properties of steel fiber–reinforced concrete (SFRC) after exposure to elevated temperatures is a current methodological challenge. The objective of this research is to evaluate the applicability of the double edge wedge splitting (DEWS) test to characterize the postcrack tensile properties of SFRC after exposure to elevated temperatures. Results show that the DEWS test has reduced scatter and facilitates the interpretation of results with diminished frictional interaction between the apparatus and the specimen. The results in terms of coefficient of mechanical degradation were comparable to those obtained by bending tests in literature, which highlights the suitability of the DEWS test to be adopted in future researches and guidelines. The postcrack tensile properties were not significantly affected up to and a linear reduction ratio was verified with the increase in temperature. Additionally, the constitutive model proposed may reproduce the effect of temperature on the tensile stress-strain behavior of the SFRC and is a valuable input for hygro-thermo-mechanical numerical models oriented to simulate the mechanical behavior of structures made with SFRC.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The first and second authors would like to thank the Institute for Technological Research (IPT) and its foundation (FIPT) for their financial and institutional support though the New Talents Program N.01/2017 and N.01/2018, respectively. This work was partially supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) [Grant No. 2017/00125-9 (Renan P. Salvador)] and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) [Grant No. 305055/2019-4 (Antonio Domingues de Figueiredo)]. The authors would also like to thank their colleague Dr. Renata Monte for her valuable technical contribution to this work.
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Journal of Materials in Civil Engineering
Volume 33 • Issue 5 • May 2021
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© 2021 American Society of Civil Engineers.
History
Received: Jul 20, 2020
Accepted: Oct 6, 2020
Published online: Feb 24, 2021
Published in print: May 1, 2021
Discussion open until: Jul 24, 2021
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