Experimental Study of Fire Effects on Mechanical Properties of SIFCON

Jaffar Al-Najafi; Laith S. RASHEED; Awad Jadooe

doi:10.71229/g1qmyn85

Authors

Jaffar Al-Najafi Department of Civil Engineering, College of Engineering, University of Kerbala, Karbala, Iraq
Laith S. RASHEED Department of Civil Engineering, College of Engineering, University of Kerbala, Karbala, Iraq
Awad Jadooe Department of Civil Engineering, College of Engineering, University of Kerbala, Karbala, Iraq

DOI:

https://doi.org/10.71229/g1qmyn85

Keywords:

Slurry infiltrated fibrous concrete , Direct flame exposure, Residual mechanical properties, Fibre volume fraction

Abstract

Slurry infiltrated fibrous concrete exhibits high strength and ductility; however, its residual mechanical behaviour following direct flame exposure remains inadequately documented using paired pre- and post-fire measurements. This study experimentally evaluated compressive, splitting tensile, and flexural strengths of a plain slurry matrix and SIFCON containing 6% and 8% fibre volumes at ambient temperature, 400°C, and 600°C under direct liquefied petroleum gas flames. At 600°C, the 6% fibre mix exhibited reductions of 31.3%, 39.2%, and 41.1% in the respective properties. Greater losses occurred in the plain matrix, whereas the 8% mix consistently showed improved residual performance after thermal exposure.

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