Aseel Mustafa Farj Ali Civil Engineering Department, Mustansiriyah University, Baghdad, Iraq.
Asst. Prof. Zinah Waleed Abass Civil Engineering Department, Mustansiriyah University, Baghdad, Iraq.


The use of GFRP in concrete structures under extreme conditions leads to extended service life and lower life cycle cost. This paper discusses the progress made in experimental studies designed to verify the response of (1000 * 1000) mm of reinforced concrete slabs subjected to shock loads. Four samples are tested for failure under repeated weight drop in the middle of the plate. Methods for measurements of deformations of the tested samples included a load cell and stress in the reinforcement and a laser sensor to measure the center deviation of the plates (LVDT). The experimental variables included in this study mainly focused on the weight of the drop length and the thickness of the slab (80 and 60) mm.
The results of the test of samples armed with (GFRP) rods and covered with a face (pressure area) with three layers of glass cloth and examined from a height of (1) m showed that they were more effective in withstanding the number of blows at a rate of (72.41%) than their counterpart tested from a height of (1.5) meters and with a percentage of (82.75%) of the sample examined from a height of (2) meters for the same thickness. And more effective than its counterpart with a thickness of (60) mm, the tissue layers did not prevent the appearance of cracks in the pressure area in the samples examined from heights (1.5.2). Decreased thickness of the panels decreased the slab's impact tolerance by (50.34%). The use of GFRP rods with glass textiles is more sustainable and cost-effective.



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- Y. Chen and I. M. May, “Reinforced concrete members under drop-weight impacts,” Proc. Inst. Civ. Eng. - Struct. Build., vol. 162, no. 1, pp. 45–56, 2009. - B. Batarlar, “Behavior of reinforced concrete slabs subjected to impact loads,” A thesis submitted to the graduate school of engineering and sciences of İzmir institute of technology for the degree of Master of Science in Civil Engineering, in July, 2013. - A. Ali and A. Al-Khafaji, “Modelling of Reinforced Concrete Slabs under Impact Loading,” Journal of Kerbala University vol. 12, no. 4, pp. 238–252, 2014. - ACI 318R, “ACI 318R-14.pdf,” American Concrete Institute. pp. 1–524, 2014. - T. D. Hrynyk and F. J. Vecchio, “Behavior of steel fiber-reinforced concrete slabs under impact load,” ACI Struct. J., vol. 111, no. 5, pp. 1213–1224, 2014. - M. M. Kadhim, “Dynamic response of structural steel elements post-strenghened with CFRP” A thesis submitted to the University of Manchester for the degree of phD 2017. - A. I. Said and E. M. Mouwainea, “Numerical modeling of reinforced concrete slabs under impact loading” Key Engineering Materials, Vol. 857, pp 99-108, 2020. - I. F. Ali, “Impact resistance of reinforced reactive powder concrete beams.” A thesis submitted to the University of Technology for the degree PhD 2018. - S. D. M. A.- KHAZRAJI, “Strength enhancement of prestressed concrete dapped-end girders,” Journal of Engineering. no.10, Vol. 21 October 2015. - American Concrete Institute. Committee 440 " Guide for the Design and Construction of Structural Concrete Reinforced with Fiber-Reinforced polymer (FRP) Bars: ACI 440.1 R-15." American Concrete Institute (2015). - American Concrete Institute. Committee 440 "Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures: ACI 440.2R-17." American Concrete Institute (2017). Kumar, S. (2022). A quest for sustainium (sustainability Premium): review of sustainable bonds. Academy of Accounting and Financial Studies Journal, Vol. 26, no.2, pp. 1-18 Allugunti V.R (2022). A machine learning model for skin disease classification using convolution neural network. International Journal of Computing, Programming and Database Management 3(1), 141-147 Allugunti V.R (2022). Breast cancer detection based on thermographic images using machine learning and deep learning algorithms. International Journal of Engineering in Computer Science 4(1), 49-56


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