PSI - Issue 64

Abbas S.A. Al-Hedad et al. / Procedia Structural Integrity 64 (2024) 1386–1393 Abbas S. A. Al-Hedad and Muhammad N. S. Hadi/ Structural Integrity Procedia 00 (2019) 000 – 000

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4. Conclusion The effect of geogrid reinforcement on the flexural behavior of concrete pavements with the existence of cracks up to failure was investigated. The test results obtained from this study indicate that: 1. The concrete specimens reinforced with geogrid and tested under static loads exhibited a slight improvement in the flexural strength up to failure. In addition, the concrete specimens reinforced with geogrid continued resisting the static flexural loads although a crack being visible. 2. Under cyclic loads, the geogrid reinforcement considerably improved the fatigue life of the specimens reinforced with the geogrid, especially for the specimens reinforced with two layers of geogrid. In addition, the fracture energy and the maximum cyclic loads of the specimens reinforced with geogrid considerably increased. 3. The number of geogrid layers used as a flexural resisting material plays a significant role in improving the flexural behavior of the concrete pavements compared with the specimens reinforced with one layer of geogrid. Acknowledgement The authors present acknowledgements to Senior Technical officers Mr Alan Grant, Mr Richard Gasser, Mr Duncan Best and Mr Ritchie Mclean, and all of the staff who work in the High Bay laboratory at the School of Civil, Mining, Environmental and Architectural Engineering at the University of Wollongong, Australia. Also, the first author would like to thank the Ministry of High Education and Scientific Research of Iraq for supporting his Ph.D. scholarship. Both authors would like to thank the University of Wollongong, Australia for providing testing facilities and supporting this work. References Al-Hedad, A. S., Hadi, M. N. S., 2017. Flexural Behavior of Concrete Pavements Reinforced with Geogrid Materials. 24 th Australasian Conf. on the Mechanics of Structures and Materials: Advancements and Challenges, Curtin University, Perth, Australia: Taylor & Francis Group, London, ISBN 978-1-138-02993-4, 2017. Al-Hedad, A. S. A., Hadi, M. N. S., 2018. Effect of Geogrid Reinforcement on the Flexural Behavior of Concrete Pavements. Road Materials and Pavement Design, 1-21, . Al-Hedad, A. S. A., Hadi, N. S. M., 2020. Effect of Geogrid Reinforcement on the Strains at Compressive Zone of Concrete Pavements. Structural concrete of journal of the fib, . Australian Standard AS 1012.11, 2014. Method of Testing Concrete, Method 11: Determination of the Modulus of Rupture. (Reconfirmed 2014), Standards Australia, Sydney NSW 2000. BS EN ISO, 2015. Geotextiles-Wilde-width Tensile Test. BSI Standards Limited 2015, European Standard, ISBN: 9780580814624. Bunnings Group Limited, 2015. Caitlin Meehan Trade Specialist.” Lat 205 Gipps St., Wollongong, NSW 2500, Australia. Hadi, M. N. S., Al-Hedad, S. A., 2020. Flexural Fatigue Behaviour of Geogrid Reinforced Concrete Pavements. Construction and Building Materials, ISSN 0950-0618, Vol. 249: DOI: DOI10.1016/j.conbuildmat.2020.118762. Hanson, J. M., Ballinger, C. A., 1992. Consideration for Design of Concrete Structures Subjected to Fatigue Loading. ACI 215R-74. ACI Committee 215, 1974 (Revised 1992), (Reapproved 1997), 215R-1-215R-24. Instron Pty Ltd., 2017. Products and Services for Materials Testing. The United State of American, viewed 5 July 2017, . Maccaderri Australia Put Ltd., 2015. Australian Directory for Building, Road, Landscaping & Mining Products & Services. Australia, . RDP Group, 2017. LDC Series DC to DC LVDT Displacement Transducer. RDP Electrosense 2216 Pottstown Pike Pottstown, Email: nfo@rdpe.com . Siva Chidambaram, R., Agarwal, P., 2015. Flexural and Shear Behavior of Geo-grid Confined RC Beams with Steel Fiber Reinforced Concrete. Construction and Building Materials, Vo. 78, 271-280. Shobana, S., Yalamesh, G., 2015. Experimental Study of Concrete Beams Reinforced with Uniaxial and Biaxial Geogrids. International Journal ChemTech Research, Vo. 8, No. 3, 1290-1295. Syntron Packer., 2017. International Combustion Australia. Rydalmere d.s.w., Model VP-65B, Series H73A29069, Syntron Co., Homer city, PA, USA, viewed 12 June 2017, . Tang, X., Chehab, G. R., Kim, S., 2008. Laboratory Study of Geogrid Reinforcement in Portland Cement Concrete. In Proceedings of the 6 th RILEM International Conference on Cracking in Pavements, 2008, 769-778. Wang, W., Sheikh, M. N., Hadi, M. N., 2016. Axial Compressive Behaviour of Concrete Confined with Polymer Grid, Journal of Materials and Structures, Vo. 49, No. 9, 3893-3908.