Scholarlink

Concrete demolition waste could serve as a valuable source of aggregates for new structural concrete. However, the inferior physical properties of recycled concrete (RC) aggregate limit its application. This study explores the enhancement of RC aggregate through carbonation by impregnating phase change material (PCM) into porous RC aggregate subsequently injecting CO2 gas. We investigate the effects of calcium carbonate (CaCO3) and PCM on the strength development of RC aggregate concrete. The results demonstrate that concrete produced with CaCO3 enhanced PCM-RC (CPCM-RC) aggregate exhibits strength comparable to conventional concrete, making it a viable option for sustainable construction practices. The CPCM-RC aggregate shows improved physical properties and higher thermal mass than conventional concrete, promoting energy-efficient building applications. Replacing virgin aggregates with CPCM-RC aggregate could position concrete as a sustainable material in the construction industry.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

High Strength Phase Change Material-Incorporated Recycled Concrete for Building Applications

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Md. Jaynul Abden,
  • Vivian W. Y. Tam,
  • Jannatul Dil Afroze,
  • Khoa N. Le

摘要

Concrete demolition waste could serve as a valuable source of aggregates for new structural concrete. However, the inferior physical properties of recycled concrete (RC) aggregate limit its application. This study explores the enhancement of RC aggregate through carbonation by impregnating phase change material (PCM) into porous RC aggregate subsequently injecting CO2 gas. We investigate the effects of calcium carbonate (CaCO3) and PCM on the strength development of RC aggregate concrete. The results demonstrate that concrete produced with CaCO3 enhanced PCM-RC (CPCM-RC) aggregate exhibits strength comparable to conventional concrete, making it a viable option for sustainable construction practices. The CPCM-RC aggregate shows improved physical properties and higher thermal mass than conventional concrete, promoting energy-efficient building applications. Replacing virgin aggregates with CPCM-RC aggregate could position concrete as a sustainable material in the construction industry.