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This study investigates the hardened properties of concrete incorporating pulverized ceramic waste powder (PCWP) and its effects on microstructure and carbon emissions when used as a partial cement replacement at varying levels (0, 2, 4, 6, 8, 10, 12, 15, 20, 25, and 30% by OPC weight) the ceramic waste powder was processed using a planetary ball mill at 650 rpm for 4.5 h to enhance fineness. The concrete was designed for M40 grade, with specimens cast and cured for 28, 90, 180, and 365 days. The result showed that workability declined as the PCWP content increased, whereas compressive strength improved up to 20% replacement. Flexural and split-tensile strength followed a similar trend. Microstructural analysis revealed that PCWP contributed to concrete densification due to the secondary pozzolanic reaction between silica in ceramic waste and portlandite. Additionally, the study assessed the reduction in carbon emissions, finding that CO2 emissions were reduced from 0.96 tons per ton of OPC in control concrete to 0.61 tons in PCWP concrete.

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Investigating Mechanical, Microstructural, and Carbon Emission Analysis Containing Pulverized Ceramic Waste Powder

  • 会议论文

  • 发表日期：

    2025年

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  • Niragi Dave,
  • Jenil Thakkar

摘要

This study investigates the hardened properties of concrete incorporating pulverized ceramic waste powder (PCWP) and its effects on microstructure and carbon emissions when used as a partial cement replacement at varying levels (0, 2, 4, 6, 8, 10, 12, 15, 20, 25, and 30% by OPC weight) the ceramic waste powder was processed using a planetary ball mill at 650 rpm for 4.5 h to enhance fineness. The concrete was designed for M40 grade, with specimens cast and cured for 28, 90, 180, and 365 days. The result showed that workability declined as the PCWP content increased, whereas compressive strength improved up to 20% replacement. Flexural and split-tensile strength followed a similar trend. Microstructural analysis revealed that PCWP contributed to concrete densification due to the secondary pozzolanic reaction between silica in ceramic waste and portlandite. Additionally, the study assessed the reduction in carbon emissions, finding that CO2 emissions were reduced from 0.96 tons per ton of OPC in control concrete to 0.61 tons in PCWP concrete.