Effect of fiber addition on strength and toughness of rubberized concretes

Faculty Engineering Year: 2024
Type of Publication: ZU Hosted Pages:
Authors:
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 More
  • Mohammed Hassan Sleim Morsy, "Flexural behavior of functionally graded concrete beams with different patterns", springer, 2021 More
  • Mohammed Hassan Sleim Morsy, "Influence of Specimen thickness on Monotonic and Cyclic Crack Tip Deformation", AEIC'95 ConferenceAEIC'95 Conference, 1995 More
  • 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 More
  • Mohammed Hassan Sleim Morsy, "3D Finite Element Simulation of Cyclic Crack Tip Deformation of a Stationary Crack", International MDP6 Conference, 1996 More

Department Related Publications

  • Selem Saleh Elsayed Ahmed Dawod, "Sulfate attack on concrete from mixing and curing water", Al-Azhar Engineering Seven International Conference, April 2003, Cairo, EGYPT., 2004 More
  • Selem Saleh Elsayed Ahmed Dawod, "Influence of Specimen thickness on Crack Tip Deformation", 4th International Conference, Al-Azhar University, Egypt, pp.82-91., 1995 More
  • Amro Shehata Mohamed Shehata Fayed, ""Crack path in steel fiber reinforced concrete composite under mixed mode", Ain Shams Journal of Civil Engineering, 2008 More
  • Amal Abdelwahab Mohamed Badawy, "Friction and Wear Characteristics of Uni-Directional Glass Fiber Reinforced Polyester Composite", Engineering Research Journal, Faculty of Engineering, Ain Shams University, 2004 More
  • Khalied Abdelaziz Mohamed Ali Attia, "INVESTIGATION AND PREDICTION OF ABRASIVE WEAR RATE OF HEAT-TREATED HCCIS WITH DIFFERENT CR/C RATIOS USING ARTIFICIAL NEURAL NETWORKS", SPRINGER INTERNATIONAL PUBLISHING AG, 2021 More
Tweet