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Minimizing the crumb rubber effects on the flexural behaviour of the layered RC beams cast using rubberized concrete with or without recycled tire steel fibers
Faculty
Engineering
Year:
2023
Type of Publication:
ZU Hosted
Pages:
Authors:
Ibrahim Attia Abdelmegeed Abdelgawad
Staff Zu Site
Abstract In Staff Site
Journal:
Construction and Building Materials Elsevier
Volume:
Keywords :
Minimizing , crumb rubber effects , , flexural behaviour
Abstract:
The huge amount of crumb rubber (CR) produced from cars’ tires and others causes environmental problems while using natural concrete components reduces their amounts in nature. So, using recycled wastes to replace the concrete components became essential. Herein, the functionally graded material (FGM) approach was implemented to reduce the bad effects of the recycled materials on the beam behavior. Nine reinforced concrete (RC) beams were tested experimentally (under four-point bending) and simulated numerically using the ABAQUS program. The first beam was a control beam (CB) made from plain concrete (PC), while the cross-section of the rest beams was divided into three equal horizontal layers along the beam span. The middle layer was cast from rubberized concrete (RuC) with CR% (30%, 50%, and 80%) as a partial sand replacement, while the top layer was made from PC. Consequently, the bottom layer was made from different patterns of RuC and recycled tire steel fiber (RSF) concrete. The numerical model was extended to involve the presence of RuC in the top layer and opening in the middle layer on the beam behavior. The test results demonstrated trivial effects on the loads’ capacities compared to CB, maximum reduction = 3.8% for beams cast with RuC in their middle layers. Moreover, the beams cast with RuC containing up to 20% and 80% CR in their bottom and middle layers could attain about 94.3––99% of the CB load. These findings encouraged using CR in concrete to reduce its harmful environmental effects and save the natural sand by about 13.3–16.6%.
Author Related Publications
Ibrahim Attia Abdelmegeed Abdelgawad, "Flexural response and load capacity of reinforced concrete beams strengthened with reinforced mortar layer", Elsevier, 2021
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Ibrahim Attia Abdelmegeed Abdelgawad, "Experimental and theoretical study on the compressive strength of the high strength concrete incorporating steel fiber and metakaolin", Elsevier, 2021
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Ibrahim Attia Abdelmegeed Abdelgawad, "Experimental study of the influence of adhesive properties and bond length on the bond behaviour of NSM FRP bars in concrete", Taylor and Francis, 2016
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Ibrahim Attia Abdelmegeed Abdelgawad, "Experimental and analytical investigation into the flexural performance of RC beams with partially and fully bonded NSM FRP bars/strips", Composite Structures, 2015
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Ibrahim Attia Abdelmegeed Abdelgawad, "Flexural behavior of RC beams strengthened by NSM GFRP Bars having different end conditions", Elsevier, 2016
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Department Related Publications
Ahmed Mohamed Hassan Ali Youssief, "Densification behavior and mechanical properties of niobium-oxide-doped alumina ceramics", Goller Verlag, 2013
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Ahmed Mohamed Hassan Ali Youssief, "Toughening and strengthening of Nb2O5 doped zirconia/alumina (ZTA) composites", Elsevier, 2015
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Selem Saleh Elsayed Ahmed Dawod, "Contribution of retardation mechanisms on the behaviour of fatigue crack growth in steel structures", 1st International Conference in Civil Engineering, Helwan University, Egypt, pp.172-182., 1998
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Selem Saleh Elsayed Ahmed Dawod, "Effect of coarse aggregate type on the mechanical behavior of high strength concrete", 5th International Conference in Building materials and structural Engineering, Academy of Graduate Studies, Tripoli, Libya, pp.140-151. 2010., 2010
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Selem Saleh Elsayed Ahmed Dawod, "FCG Behavior in Parallel Direction of Welded Austenitic Stainless Steel Plate", AEIC 12, 2012, 2012
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