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<p>A substantial amount of waste is generated globally each year, leading to significant environmental concerns and pressures on waste management systems. Construction, agricultural and industrial sectors contribute to this waste, with materials like ceramic tiles representing a considerable portion. Using ceramic tiles as aggregates in concrete offers a sustainable waste management strategy while addressing the depletion of natural resources due to the ongoing extraction of raw aggregates. This study explores the influence of ceramic tiles as fine and coarse aggregates on the microstructural and hardened properties of concrete. The microstructure was examined using scanning electron microscopy (SEM). In total 14 concrete mixes were prepared with varying substitutions of ceramic coarse aggregates (10–50%) and fine aggregates (10–20%) and the properties of these mixes were evaluated at 14, 28, and 60 days of hydration. The workability of all concrete mixtures was maintained by keeping the water-cement ratio within the range of 0.4 to 0.45. Findings revealed that prolonged hydration enhanced compressive, tensile, and flexural strengths by day 60 across all mixes. Among the mixtures with both coarse and fine aggregate substitutions, compressive strength increased by 40%, tensile strength by 30%, and flexural strength by 11%. Additionally, the microstructure of mixtures with fine aggregate substitutions demonstrated a robust interfacial transition zone, primarily due to the micro-filler effect.</p>

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Experimental investigation on the use of ceramic tiles as aggregates in concrete

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Bushra Fatima,
  • Farnaz Batool,
  • Abdul Jabbar Sangi

摘要

A substantial amount of waste is generated globally each year, leading to significant environmental concerns and pressures on waste management systems. Construction, agricultural and industrial sectors contribute to this waste, with materials like ceramic tiles representing a considerable portion. Using ceramic tiles as aggregates in concrete offers a sustainable waste management strategy while addressing the depletion of natural resources due to the ongoing extraction of raw aggregates. This study explores the influence of ceramic tiles as fine and coarse aggregates on the microstructural and hardened properties of concrete. The microstructure was examined using scanning electron microscopy (SEM). In total 14 concrete mixes were prepared with varying substitutions of ceramic coarse aggregates (10–50%) and fine aggregates (10–20%) and the properties of these mixes were evaluated at 14, 28, and 60 days of hydration. The workability of all concrete mixtures was maintained by keeping the water-cement ratio within the range of 0.4 to 0.45. Findings revealed that prolonged hydration enhanced compressive, tensile, and flexural strengths by day 60 across all mixes. Among the mixtures with both coarse and fine aggregate substitutions, compressive strength increased by 40%, tensile strength by 30%, and flexural strength by 11%. Additionally, the microstructure of mixtures with fine aggregate substitutions demonstrated a robust interfacial transition zone, primarily due to the micro-filler effect.