The Thermal Effects on the Self-Compacting Concrete Beams Exposed to the Fire

Year 2023, , 268 - 283, 31.05.2023

Ammar Tawashi

https://doi.org/10.31202/ecjse.1209551

Abstract

Self-Compacting concrete (SCC) is one of the most important technological developments in the construction material. Its use has increased significantly in recent years in the construction industry due to its high properties. though, the performance of fire-affected elements made of SCC mixture is primarily unknown. In this work, beams were produced of (SCC) in laboratory, and exposed to external fire at several reference time (30/60/90/120)min with two methods of cooling (subjectively, water), where three levels of response were selected and evaluated (thermal transferring progress, Spalling, surface microstructure), the results revealed that the damaged in the service loaded beam is interesting, corresponds to the characteristics of the cracks formed in the concrete section on bending zone which was photographically documented, and the progress of thermal transferring has a large values during (5-20) min in heating stage, and takes varies values (10-30%) at beam height where the curve been closer to linear.

Keywords

Self-Compacting concrete (SCC), Concrete Beam, Fire Scenario, Curves, Thermal transfer velocity

References

• [1]. A. Helmy, K. Morsy, and S. A. Nasr, “Structural Behaviour of R.C. Beams Subjected to Fire and Retrofitted Using Advanced Composite Materials,” ICPCM, 2003, pp. 2-10.
• [2]. M. E. Mathews, N. Anand, D. Andrushia, T. Kiran, and K. Al-Jabri, “Flexural behavior of fire damaged self-compacting concrete beams strengthened with fiber reinforced polymer (FRP) wrapping,” Journal of Structural Fire Engineering, vol. 12, no. 4, pp. 486-509, 2021.
• [3]. M. E. Mathews, N. Anand, É. Lublóy, and T. Kiran, “Effect of elevated temperature on interfacial shear transfer capacity of self-compacting concrete,” Case Studies in Construction Materials, vol.15, e00753, 2021.
• [4]. M. Petru, “Design of Reinforced Concrete Elements Under Fire,” Gheorghe Asachi, Technical University, Jassy, Romania, Fasc, vol. 3, pp. 24-32, 2008.
• [5]. BIBM, CEMBUREAU, EFCA, EFNARC, ERMCO, “The European Guidelines for Self-Compacting Concrete Specification, Production and Use,” SCC European Project Group SCC 028 European Federations, pp. 1-63, 2005.
• [6]. G. Guergah, M. Salah, M. Dimia and Guenfoud, “Numerical Modelling of The Fire Behaviour Of Reinforced Concrete Beam Integrating The Concrete Cover Lost By Spalling,” J. Materials and Environmental Science, vol. 8, no. 10, pp. 3690-3705, 2017.
• [7]. A. De Wit, “Behaviour and structural design of concrete structures exposed to fire,” Master of Science Thesis, Stockholm, Sweden, pp. 5-22, 2015.
• [8]. L. Bodnarova, J. Valek, P. Petr Novosad, “Testing of Action of Direct Flame on Concrete,” Hindawi Publishing Corporation, the Scientific World Journal, Article ID 371913, pp. 1-8, 2015.
• [9]. A. F. Izzet and Z. H. AL-Dulffy, “Effect of High Temperature (Fire Flame) on the Behavior of Post-tensioned Concrete Beams,” Association of Arab Universities Journal of Engineering Sciences, vol. 25, no. 3, pp. 49-68, 2018.
• [10]. M. M. Kadhum, “Fire resistance of reinforced concrete rigid beams,” Journal of Civil Engineering and Construction Technology, vol. 5, no. 5, pp. 35-48, 2014.
• [11]. M. M. Kadhum, “Effect of Burning by Fire Flame on the Behavior of Reinforced Concrete Beam Models,” J. Babylon University Engineering Sciences, vol. 21, no. 5, pp. 1486-1506, 2013.
• [12]. ASTM, “Standard Terminology of Fire Standards,” American Society for Testing and Materials, West Conshohocken, PA, United States, 2001a, ASTM E176.
• [13]. The Syrian Arab Code, “The design and implementation the construction by reinforced concrete,” Syrian Engineers Association, Fourth Edition, Damascus, Syria, vol. 402, pp. 57-69, 2012.
• [14]. A. Hasan-Ghasemi, M. Nematzadeh, and H. Fallahnejad, “Post-fire residual fracture characteristics and brittleness of self-compacting concrete containing waste PET flakes: Experimental and theoretical investigation,” Engineering Fracture Mechanics, vol. 261, 108263, 2022.
• [15]. A. Tawashi, and S. Alamoudi, “The Mechanical Behavior of Self-Compacting Concrete SCC Samples Locally Produce,” J. Engineering Sciences and Information Technology, AJSRP, vol. 6, no. 2, pp. 148-169, 2022.
• [16]. W. TIMO, “Fresh Properties of Self-Compacting Concrete (SCC),” Otto – Graf Journal, vol. 14, no. 10, pp. 179-188, 2023.
• [17]. ASTM, “Standard Test Methods for Fire Tests of Building Construction and Materials,” American Society for Testing and Materials, West Conshohocken, PA, United States, 2000, ASTM E119.