Flexural Behavior (Load-Strain Curve) of Reinforced Concrete Beams Covered by Gypsum Layers and Exposed to Elevated Temperatures

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Abstract:

The paper presents the results of exposure of normal concrete to elevated temperatures (400 and 700) °C covered by layers (gypsum and plaster) with different thicknesses (10 and 20) mm. Through the figures shown in the paper, which were obtained from the experimental side of the research, the load-strain curves improved when the gypsum thickness increased during the specimens' exposure to fire. Where the relationship between them at a temperature of 400°C in a thickness of 20 mm was better than 10 mm when exposed to fire, so by increasing the thickness of the gypsum, the occurrence of strain is less because it protects the surface of the concrete from direct exposure to heat and thus prevents the occurrence of cracks in the outer surface of the concrete.

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Solid State Phenomena (Volume 329)

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63-69

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March 2022

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© 2022 Trans Tech Publications Ltd. All Rights Reserved

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[1] Izzet, A.F. and Al-Dulffy, Z.H., 2018. Effect of high temperature (fire flame) on the behavior of post-tensioned concrete beams. Association of Arab Universities Journal of Engineering Sciences, 25(3), pp.49-68.

Google Scholar

[2] Sarsam, K.F. and Mohammed, M.H., 2014. Flexural strength of hybrid beams containing reactive powder concrete and conventional concrete. Journal of Engineering and Development, 18(5), pp.61-91.

Google Scholar

[3] AL-Saraj, W.K., 2013. Structural behavior of reinforced reactive powder concrete t-beams under pure torsion. Ph.D. Thesis, University of Mustansiriayah, Iraq.

Google Scholar

[4] Al-Shafii, N.T.H., 2013. Shear behavior of reactive powder concrete T-beams. Ph.D. Thesis, University of Mustansiriayah, Iraq.

Google Scholar

[5] Iraqi Specification, No.5, 1984. Portland cement. (Translator from Arabic).

Google Scholar

[6] Iraqi Specification, No.45, 1984. Aggregate from natural sources for concrete and construction. pp-320. (Translated from Arabic).

Google Scholar

[7] Iraqi Specification, 1988. Physical examinations of juss for construction. Central Organization for Standardization and Quality Control No. 27.

Google Scholar

[8] Iraqi Specification, No. 28, 2010. Juss for construction. Central Organization for Standardization and Quality Control.

Google Scholar

[9] ASTM E-119, 2017. Standard test methods for fire tests of building construction and materials.

Google Scholar