Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete

Guanzhi Liu; Maria Koetsier; Nikola Tošić; Wim Ekkelenkamp; Marija Nedeljković; Mladena Luković; Albert de la Fuente

Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete

Guanzhi Liu^*, Maria Koetsier, Nikola Tošić, Wim Ekkelenkamp, Marija Nedeljković, Mladena Luković, Albert de la Fuente

^*Corresponding author for this work

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

This study aims to investigate the effect of incorporating different quantities of steel fibres recovered during concrete recycling on the mechanical properties of new steel fibre reinforced concrete (SFRC). Mixes contained 20 kg/m³ and 25 kg/m³ of steel fibres, with recovered steel fibres at replacement levels of 0%, 10%, 30%, and 100%. The recovered fibres were tested and categorized to determine the effect of recycling on fibre properties. The compressive strength, elastic modulus, stress–strain behaviour in compression, residual flexural strength of SFRC and inductive test were tested. The results demonstrate that incorporating a small proportion of recycled fibre alongside virgin fibre is a feasible approach, with a 10% recycled fibre replacement yielding superior performance compared to using 100% virgin fibre alone.

Original language	English
Title of host publication	Proceedings of the 2025 fib International Symposium - Concrete Structures
Subtitle of host publication	extend lifetime, limit impacts
Editors	Matthieu Briffaut, Jean Michel Torrenti
Publisher	fib. The International Federation for Structural Concrete
Pages	1497-1504
Number of pages	8
ISBN (Print)	9782940643295
Publication status	Published - 2025
Event	fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025 - Antibes, France Duration: 16 Jun 2025 → 18 Jun 2025 https://www.afgc.asso.fr/evenement/fib-symposium-2025/ https://fibsymposium2025.sciencesconf.org/resource/page/id/16

Publication series

Name	fib Symposium
ISSN (Print)	2617-4820

Conference

Conference	fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025
Abbreviated title	fib Symposium 2025
Country/Territory	France
City	Antibes
Period	16/06/25 → 18/06/25
Internet address	https://www.afgc.asso.fr/evenement/fib-symposium-2025/ https://fibsymposium2025.sciencesconf.org/resource/page/id/16

Keywords

inductive test
recovered fibre
replacement ratio
residual flexural strength
SFRC
stress-strain behaviour

Cite this

Liu, G., Koetsier, M., Tošić, N., Ekkelenkamp, W., Nedeljković, M., Luković, M., & de la Fuente, A. (2025). Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete. In M. Briffaut, & J. M. Torrenti (Eds.), Proceedings of the 2025 fib International Symposium - Concrete Structures: extend lifetime, limit impacts (pp. 1497-1504). (fib Symposium). fib. The International Federation for Structural Concrete.

Liu, Guanzhi ; Koetsier, Maria ; Tošić, Nikola et al. / Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete. Proceedings of the 2025 fib International Symposium - Concrete Structures: extend lifetime, limit impacts. editor / Matthieu Briffaut ; Jean Michel Torrenti. fib. The International Federation for Structural Concrete, 2025. pp. 1497-1504 (fib Symposium).

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title = "Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete",

abstract = "This study aims to investigate the effect of incorporating different quantities of steel fibres recovered during concrete recycling on the mechanical properties of new steel fibre reinforced concrete (SFRC). Mixes contained 20 kg/m³ and 25 kg/m³ of steel fibres, with recovered steel fibres at replacement levels of 0%, 10%, 30%, and 100%. The recovered fibres were tested and categorized to determine the effect of recycling on fibre properties. The compressive strength, elastic modulus, stress–strain behaviour in compression, residual flexural strength of SFRC and inductive test were tested. The results demonstrate that incorporating a small proportion of recycled fibre alongside virgin fibre is a feasible approach, with a 10% recycled fibre replacement yielding superior performance compared to using 100% virgin fibre alone.",

keywords = "inductive test, recovered fibre, replacement ratio, residual flexural strength, SFRC, stress-strain behaviour",

author = "Guanzhi Liu and Maria Koetsier and Nikola To{\v s}i{\'c} and Wim Ekkelenkamp and Marija Nedeljkovi{\'c} and Mladena Lukovi{\'c} and {de la Fuente}, Albert",

year = "2025",

language = "English",

isbn = "9782940643295",

series = "fib Symposium",

publisher = "fib. The International Federation for Structural Concrete",

pages = "1497--1504",

editor = "Matthieu Briffaut and Torrenti, {Jean Michel}",

booktitle = "Proceedings of the 2025 fib International Symposium - Concrete Structures",

note = "fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025, fib Symposium 2025 ; Conference date: 16-06-2025 Through 18-06-2025",

url = "https://www.afgc.asso.fr/evenement/fib-symposium-2025/, https://fibsymposium2025.sciencesconf.org/resource/page/id/16",

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Liu, G, Koetsier, M, Tošić, N, Ekkelenkamp, W, Nedeljković, M, Luković, M & de la Fuente, A 2025, Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete. in M Briffaut & JM Torrenti (eds), Proceedings of the 2025 fib International Symposium - Concrete Structures: extend lifetime, limit impacts. fib Symposium, fib. The International Federation for Structural Concrete, pp. 1497-1504, fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025, Antibes, France, 16/06/25.

Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete. / Liu, Guanzhi; Koetsier, Maria; Tošić, Nikola et al.
Proceedings of the 2025 fib International Symposium - Concrete Structures: extend lifetime, limit impacts. ed. / Matthieu Briffaut; Jean Michel Torrenti. fib. The International Federation for Structural Concrete, 2025. p. 1497-1504 (fib Symposium).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete

AU - Liu, Guanzhi

AU - Koetsier, Maria

AU - Tošić, Nikola

AU - Ekkelenkamp, Wim

AU - Nedeljković, Marija

AU - Luković, Mladena

AU - de la Fuente, Albert

PY - 2025

Y1 - 2025

N2 - This study aims to investigate the effect of incorporating different quantities of steel fibres recovered during concrete recycling on the mechanical properties of new steel fibre reinforced concrete (SFRC). Mixes contained 20 kg/m³ and 25 kg/m³ of steel fibres, with recovered steel fibres at replacement levels of 0%, 10%, 30%, and 100%. The recovered fibres were tested and categorized to determine the effect of recycling on fibre properties. The compressive strength, elastic modulus, stress–strain behaviour in compression, residual flexural strength of SFRC and inductive test were tested. The results demonstrate that incorporating a small proportion of recycled fibre alongside virgin fibre is a feasible approach, with a 10% recycled fibre replacement yielding superior performance compared to using 100% virgin fibre alone.

AB - This study aims to investigate the effect of incorporating different quantities of steel fibres recovered during concrete recycling on the mechanical properties of new steel fibre reinforced concrete (SFRC). Mixes contained 20 kg/m³ and 25 kg/m³ of steel fibres, with recovered steel fibres at replacement levels of 0%, 10%, 30%, and 100%. The recovered fibres were tested and categorized to determine the effect of recycling on fibre properties. The compressive strength, elastic modulus, stress–strain behaviour in compression, residual flexural strength of SFRC and inductive test were tested. The results demonstrate that incorporating a small proportion of recycled fibre alongside virgin fibre is a feasible approach, with a 10% recycled fibre replacement yielding superior performance compared to using 100% virgin fibre alone.

KW - inductive test

KW - recovered fibre

KW - replacement ratio

KW - residual flexural strength

KW - SFRC

KW - stress-strain behaviour

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M3 - Conference contribution

AN - SCOPUS:105016453417

SN - 9782940643295

T3 - fib Symposium

SP - 1497

EP - 1504

BT - Proceedings of the 2025 fib International Symposium - Concrete Structures

A2 - Briffaut, Matthieu

A2 - Torrenti, Jean Michel

PB - fib. The International Federation for Structural Concrete

T2 - fib International Symposium on Concrete Structures: extend lifetime, limit impacts, 2025

Y2 - 16 June 2025 through 18 June 2025

ER -

Liu G, Koetsier M, Tošić N, Ekkelenkamp W, Nedeljković M, Luković M et al. Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete. In Briffaut M, Torrenti JM, editors, Proceedings of the 2025 fib International Symposium - Concrete Structures: extend lifetime, limit impacts. fib. The International Federation for Structural Concrete. 2025. p. 1497-1504. (fib Symposium).

Effect of incorporating different quantities of recovered steel fibres on the mechanical properties of new steel fibre-reinforced concrete

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