Rapid surge in automobile industry has resulted in high demand for rubber tire. Rubber tires generally have a finite lifespan, necessitating their regular replacement. Disposal of these used tires has become a major environmental concern, as they are largely non-biodegradable and occupy significant landfill space. Utilization of these rubber tire as partial replacement for fine and coarse aggregate in concrete may provide a sustainable solution along with less exploitation of natural aggregate in construction industry. This experimental study was conducted for partial replacement of fine aggregate by crumb rubber. Fresh and hardened state properties of rubberized concrete such as workability, compressive strength, splitting tensile strength, flexural strength, stress–strain curve, and temperature effect was conducted. The results suggest that the inclusion of rubber particles in concrete can lead to a modest reduction in compressive strength while it can also significantly enhance the ductility and post-cracking behavior of the concrete. Enhanced ductility and energy absorption capacity of rubberized concrete can be advantageous for application in rigid concrete pavement or other structural components subjected to impact loading.

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Investigating the Potential of Crumb Rubber as Fine Aggregate Replacement in Sustainable Concrete

  • Satish Kumar Mahato,
  • Santosh Kumar Das,
  • Saroj Kanti Biswas

摘要

Rapid surge in automobile industry has resulted in high demand for rubber tire. Rubber tires generally have a finite lifespan, necessitating their regular replacement. Disposal of these used tires has become a major environmental concern, as they are largely non-biodegradable and occupy significant landfill space. Utilization of these rubber tire as partial replacement for fine and coarse aggregate in concrete may provide a sustainable solution along with less exploitation of natural aggregate in construction industry. This experimental study was conducted for partial replacement of fine aggregate by crumb rubber. Fresh and hardened state properties of rubberized concrete such as workability, compressive strength, splitting tensile strength, flexural strength, stress–strain curve, and temperature effect was conducted. The results suggest that the inclusion of rubber particles in concrete can lead to a modest reduction in compressive strength while it can also significantly enhance the ductility and post-cracking behavior of the concrete. Enhanced ductility and energy absorption capacity of rubberized concrete can be advantageous for application in rigid concrete pavement or other structural components subjected to impact loading.