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Experimental and parametrical investigation of pre-stressed ultrahigh performance fiber-reinforced concrete railway sleepers
Faculty
Engineering
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Syed Ahmed Syed Ahmed Mohamd
Staff Zu Site
Abstract In Staff Site
Journal:
Frontiers of Structural and Civil Engineering HIGHER EDUCATION PRESS
Volume:
Keywords :
Experimental , parametrical investigation , pre-stressed ultrahigh performance
Abstract:
In this study, ultrahigh-performance fiber-reinforced concrete (UHPFRC) used in a type B70 concrete sleeper is investigated experimentally and parametrically. The main parameters investigated are the steel fiber volume fractions (0%, 0.5%, 1%, and 1.5%). Under European standards, 35 UHPFRC sleepers are subjected to static bending tests at the center and rail seat sections, and the screw on the fastening system is pulled out. The first cracking load, failure load, failure mode, crack propagation, load–deflection curve, load–crack width, and failure load from these tests are measured and compared with those of a control sleeper manufactured using normal concrete C50. The accuracy of the parametric study is verified experimentally. Subsequently, the results of the study are applied to UHPFRC sleepers with different concrete volumes to investigate the effects of the properties of UHPFRC on their performance. Experimental and parametric study results show that the behavior of UHPFRC sleepers improves significantly when the amount of steel fiber in the mix is increased. Sleepers manufactured using UHPFRC with a steel fiber volume fraction of 1% and a concrete volume less than 25% that of standard sleeper B70 can be used under the same loads and requirements, which contributes positively to the cost and surrounding environment.
Author Related Publications
Syed Ahmed Syed Ahmed Mohamd, "Evaluation of Non-Conforming Corroded Bridge Piers Exposed to Seismic Loads", International Journal of Engineering and Innovative Technology (IJEIT), 2017
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Syed Ahmed Syed Ahmed Mohamd, "Evaluation of Conforming Corroded Bridge Piers Exposed To Seismic Loads", International Journal of Trend in Research and Development, 2017
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Syed Ahmed Syed Ahmed Mohamd, "Mechanical Properties of Ultra-High Performance Fiber Reinforced Concrete", International Journal of Engineering and Innovative Technology, 2014
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Syed Ahmed Syed Ahmed Mohamd, "Effect of Treated/Untreated Recycled Aggregate Concrete: Structural Behavior of RC Beams", MDPI, 2024
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Syed Ahmed Syed Ahmed Mohamd, "Properties and stress-strain curve of rubberized concrete cast with uncoated or pre-coated rubber with cement/waste materials", elsevier, 2024
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Department Related Publications
Elsayed saad Abdelsalam Salman, "A. Elshihy, S. Abdel Salam, A. Gehad, ”ANALYSES OF CONTINUOUS STRIP FOOTING WITH A LOSS OF SUPPORT”, Proceedings of 2 nd - Conf. on Civil Engg., Military Tecl. College, Cairo, 1994.", Proceedings of 2 nd - Conf. on Civil Engg., Military Tecl. College, Cairo,, 1994
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Elsayed saad Abdelsalam Salman, "S. Abdel Salam, “REINFORCED CONCRETE DOUBLE SHORT CANTILEVER: FINITE ELEMENT ANALYSIS”, Proceeding of 1st Egyptian Structural Engineering Conf. Cairo Univ., 22-25 April, 1985.", Proceeding of 1st Egyptian Structural Engineering Conf. Cairo Univ., 1985
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Elsayed saad Abdelsalam Salman, "S. Abdel Salam, “A REINFORCED CONCRETE DOUBLE CORBLE : FINITE ELEMENT ANALYSIS ”, Proceedings of Second Arab Conf. on Structural Eng., Faculty of Engineering & Technology, Jordan Univ., 19-22 April, 1987, Amman.", Proceedings of Second Arab Conf. on Structural Eng., Faculty of Engineering & Technology, Jordan Univ., Amman., 1987
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Mohammed Reda Ali Elewa, "Numerical Modeling of Time-Displacement Response of RC Slab Subjected to Impact Loading", IOSR Journals, 2019
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