Correlation between Flexural–Tensile Performance of Concrete Reinforced with Hooked-End Steel Fibers Using US and European Standards
Publication: Journal of Materials in Civil Engineering
Volume 33, Issue 8
Abstract
ACI 318 and the fib Model Code 2010 prescribe recommendations for the design of steel fiber–reinforced concrete (SFRC) using performance measured with a four-point bending test (4PBT) per the ASTM C1609 US standard and a three-point bending Test (3PBT) per the EN 14651 European standard, respectively. Different assumptions of the test methods hinder the comparison and direct correlation of studies performed using European and US standards. This study determined the residual flexural tensile performance of 40 SFRC beams using 3PBTs and 4PBTs. The study variables were the dosage (0, 20, 40, and ), the number of hook ends (1, 1.5, and 2), and the tensile strength of the steel fibers. The study assessed the effect of number of hook ends and reinforcement index of steel fibers on the residual strength from 3PBTs and 4PBTs. A model is proposed to correlate the residual tensile performance of the SFRC measured using tests procedures prescribed by European and US standards. The proposed model includes the influence of strain hardening on the relationship between residual strength from 3PBT and 4PBT.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
The authors recognize the financial support of the Vicerrectoría de Investigaciones of the UMNG for the IMP-ING-2933 Project. The authors also acknowledge the material provision by CEMEX-Colombia and Dramix-Proalco for the experimental program of this study. The views expressed in this paper are solely those of the authors and do not necessarily reflects the views of the sponsors.
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Published In
Journal of Materials in Civil Engineering
Volume 33 • Issue 8 • August 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Oct 28, 2020
Accepted: Jan 12, 2021
Published online: Jun 14, 2021
Published in print: Aug 1, 2021
Discussion open until: Nov 14, 2021
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