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June 3, 2026Journal of Building Engineering0 citationsOpen Access

Structural performance of recycled tyre steel fibre reinforced high-performance cementitious composites for urban concrete elements

NGNatividad García-TroncosoEscuela Superior Politecnica del Litoral IMIvan Macas-EspinosaUniversitat Politècnica de Catalunya MGManuel García-LabordaUniversitat Politècnica de Catalunya

Key Points

This research aims to evaluate the structural performance of recycled tyre steel fibre reinforced composites in urban concrete applications.
Evaluated recycled tyre steel fibres at material and full-scale urban concrete elements.
Assessed the effects of short and long fibres on post-cracking and deformation response.
Measured fibre content and orientation's impact on flexural behaviour through inductive measurements.
Short recycled tyre steel fibres improved early post-cracking behaviour.
Longer fibres enhanced large-deformation response, leading to improved post-peak stability.
Recycling tyres for steel fibre reinforcement reduced embodied carbon by approximately 98% compared to industrial standards.

Abstract

• RTSF were evaluated from material scale to full-scale urban concrete elements. • Short RTSF improved early post-cracking, while longer fibres enhanced large-deformation response. • Hybrid RTSF improved post-peak stability at full scale despite lower beam-scale toughness. • Inductive measurements confirmed the role of fibre content and orientation on flexural behaviour. • RTSF reinforcement reduced embodied carbon by up to ∼98% vs the industrial reference.

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