Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Mechanical and Thermal Properties of Hybrid Fibre-Reinforced Concrete Exposed to Recurrent High Temperature and Aviation Oil

Version 1 : Received: 28 April 2021 / Approved: 30 April 2021 / Online: 30 April 2021 (11:13:43 CEST)

How to cite: Hossain, M.M.; Al-Deen, S.; Hassan, M.K.; Shill, S.K.; Kader, M.A.; Hutchison, W. Mechanical and Thermal Properties of Hybrid Fibre-Reinforced Concrete Exposed to Recurrent High Temperature and Aviation Oil. Preprints 2021, 2021040786 (doi: 10.20944/preprints202104.0786.v1). Hossain, M.M.; Al-Deen, S.; Hassan, M.K.; Shill, S.K.; Kader, M.A.; Hutchison, W. Mechanical and Thermal Properties of Hybrid Fibre-Reinforced Concrete Exposed to Recurrent High Temperature and Aviation Oil. Preprints 2021, 2021040786 (doi: 10.20944/preprints202104.0786.v1).

Abstract

Over the years, leaked fluids from the aircraft caused severe deterioration of the airfield pavement. The combined effect of hot exhaust from the auxiliary power unit of military aircraft and spilt aviation oils caused rapid pavement spalling. If the disintegrated concreted pieces caused by spalling is sucked into the jet engine, it may cause catastrophic damage to the aircraft engine or physical injury to maintenance crews. This study investigates the effectiveness of incorporating hybrid fibres into ordinary concrete to improve the residual mechanical and thermal properties to prevent spalling damage of pavement. Three fibre reinforced concrete samples made with micro steel fibre and polyvinyl alcohol fibre with a fibre content of zero, 0.3%, 0.5% and 0.7% by volume fraction. These samples were exposed to recurring high temperature and aviation oils. Tests were conducted to measure the effects of repeated exposure on the concrete's mechanical, thermal and chemical characteristics. The results showed that polyvinyl alcohol fibre reinforced concrete suffered a significant loss of thermal properties and residual mechanical strength than the micro steel fibre reinforced concrete. However, hybrid fibre reinforced concrete performed better in retaining higher residual properties, and no spalling of concrete was observed.

Subject Areas

Hybrid fibre-reinforced concrete; thermal conductivity; spalling; residual mechanical strength.

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