Scholarlink

<p>Coal is the major source of energy production throughout the world. To meet the demands of energy results in the generation of solid waste i.e. Fly ash (FA). Fly ash is considered one of the largest solid waste by-products generated worldwide from energy production. In this work, our aim for the conversion of waste stack to source of resources. This study contributes to facilitate the fly ash as a choice of alternative of silica sand for mold making. The influence of fly ash content and CO<sub>2</sub> gassing time on mold properties were investigated. Moulds were prepared using 5–20 wt% fly ash blended with silica sand and sodium silicate as a binder through the CO₂ moulding process. Sand-fly ash mold (15% of FA with 15&#xa0;s gassing time) was found to exhibit optimum properties such as mold hardness, mold shear strength and mold compressive strength are 95, 7&#xa0;kg/cm<sup>2</sup> and 6&#xa0;kg/cm<sup>2</sup> respectively as compared with plain sand mold due to having high bond strength between the sand-fly ash particulates.</p>

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

Fly ash a substantial alternative of sand mold using CO2 molding process: a multi-criteria decision-making algorithm (TOPSIS) based approach

  • 期刊论文

  • 发表日期：

    2026年6月29日

查看全文
  • Nitesh Kumar Sinha,
  • Rabindra Prasad,
  • I.N. choudhary,
  • Manik Mahali,
  • J.K. Singh,
  • Rajat Upadhyaya,
  • Ashish Singh Pareta,
  • Vineet Kumar

摘要

Coal is the major source of energy production throughout the world. To meet the demands of energy results in the generation of solid waste i.e. Fly ash (FA). Fly ash is considered one of the largest solid waste by-products generated worldwide from energy production. In this work, our aim for the conversion of waste stack to source of resources. This study contributes to facilitate the fly ash as a choice of alternative of silica sand for mold making. The influence of fly ash content and CO2 gassing time on mold properties were investigated. Moulds were prepared using 5–20 wt% fly ash blended with silica sand and sodium silicate as a binder through the CO₂ moulding process. Sand-fly ash mold (15% of FA with 15 s gassing time) was found to exhibit optimum properties such as mold hardness, mold shear strength and mold compressive strength are 95, 7 kg/cm2 and 6 kg/cm2 respectively as compared with plain sand mold due to having high bond strength between the sand-fly ash particulates.