Reinforced Concrete Columns Insulated by Different Gypsum Layers Exposed to 900°C One Side Fire Flame

Authors

  • Mohanad Salih Farhan Al-Jadiri Department of Civil Engineering, University of Baghdad, Iraq
  • Abdul Muttalib I. Said Department of Civil Engineering, University of Baghdad, Iraq
Volume: 13 | Issue: 5 | Pages: 11586-11592 | October 2023 | https://doi.org/10.48084/etasr.6083

Abstract

This study investigated the effect of high-temperature fire flame on reinforced concrete columns coated with a layer of gypsum insulation. Six samples were cast and cured in a hot water bath at 67°C, covered on one side by 10 and 20 mm thick layers of gypsum plaster. The samples were exposed to a 900°C fire flame in a hydrocarbon fire furnace for one and two hours. The results showed that the gypsum plaster layer prevented a high-temperature rise within the core of the column. The differences between all gypsum-coated columns varied compared to those of the reference samples. The gypsum-coated columns had reduced axial displacements and no spalling and visible cracks on their faces. The improvement in the compressive strength of concrete will be discussed in a future paper. This study was carried out following ACI-318 and ASTM C1529.

Keywords:

one face, hydrocarbon fire, temperature evolution, ASTM 1529

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How to Cite

[1]
Al-Jadiri, M.S.F. and Said, A.M.I. 2023. Reinforced Concrete Columns Insulated by Different Gypsum Layers Exposed to 900°C One Side Fire Flame. Engineering, Technology & Applied Science Research. 13, 5 (Oct. 2023), 11586–11592. DOI:https://doi.org/10.48084/etasr.6083.

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