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Effect of fiber addition on strength and toughness of rubberized concretes
Faculty
Engineering
Year:
2024
Type of Publication:
ZU Hosted
Pages:
Authors:
Mohammed Hassan Sleim Morsy
Staff Zu Site
Abstract In Staff Site
Journal:
scientific reports Nature
Volume:
Keywords :
Effect , fiber addition , strength and toughness , rubberized concretes
Abstract:
of rubberized fiber-reinforced concrete (RFRC). Crumb rubber was partially replaced from sand at volume fractions of 0%, 5%, 10%, 15%, and 20%. Steel fibers (SFs) with fiber volume fractions (Vf%) of 0%, 0.5%, 1%, and 1.5% were used for the production of FRCs, while polypropylene fiber (PPF) with Vf% = 0.4% was adopted to produce others FRCs. A combination of 0.4% PPF and 1% SF was used for hybrid FRC. The static properties were evaluated through compression, indirect tension, and flexural tests. However, the drop weight impact test was conducted to assess the dynamic property by estimating the impact energy. It was observed that the replacement of sand with rubber reduced all mechanical properties of concrete. In the case of RFRC, a reduction in compressive strength, compared to samples without fibers, was noted, and this reduction increased with higher Vf%. Both toughness indices and fracture energy were affected slightly by increasing rubber percentages while markedly increased with higher Vf%. However, adding rubber and/or fibers enhanced the impact energy of concrete.
Author Related Publications
Mohammed Hassan Sleim Morsy, "Intrinsic fracture toughness of fiber reinforced and functionally graded concretes: An innovative approach", sciencedirect, 2021
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Mohammed Hassan Sleim Morsy, "Flexural behavior of functionally graded concrete beams with different patterns", springer, 2021
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Mohammed Hassan Sleim Morsy, "Influence of Specimen thickness on Monotonic and Cyclic Crack Tip Deformation", AEIC'95 ConferenceAEIC'95 Conference, 1995
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Mohammed Hassan Sleim Morsy, "The flexural behavior and efficiency of RC beams strengthened with SNSM bars under the effect of several end conditions and material properties", Elsevier, 2024
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Mohammed Hassan Sleim Morsy, "3D Finite Element Simulation of Cyclic Crack Tip Deformation of a Stationary Crack", International MDP6 Conference, 1996
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Department Related Publications
Selem Saleh Elsayed Ahmed Dawod, "Mechanical behavior of high strength concrete reinforced by different types of fibers", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2003
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Hossameldien Mohamed Salam Helmy, "Lateral Impact Response of Rubberized-Fibrous Concrete-Filled Steel Tubular Columns: Experiment and Numerical Study", MDPI, 2022
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Ibrahim Attia Abdelmegeed Abdelgawad, "The flexural response of RC beams strengthened by EB/NSM techniques using FRP and metal materials: a state‑of‑the‑art review", springer, 2023
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Selem Saleh Elsayed Ahmed Dawod, "Fracture behavior of steel fiber reinforced concrete", 1st International Conference and the 4th Exhibition of ACI Kuwait Chapter, September 29 – October 1, 2003., 2003
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Selem Saleh Elsayed Ahmed Dawod, "Numerical Structural analysis of repairing and strengthening of RC beams", 5th International Conference in Building materials and structural Engineering, Academy of Graduate Studies, Tripoli, Libya, pp.140-151. 2010., 2010
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