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The overgrowing demand for land and infrastructure has stretched the yearly consumption of ordinary Portland cement (OPC) to a remarkable 4 BMT, engendering it as one of the most significant contributors to global greenhouse gas emissions. The current state of scientific advancements must adopt sustainable approaches for addressing future developments in which geopolymer technology can aid. Low CO2 discharges and advanced properties are among the key features of geopolymers, enabling them to be considered ecologically efficient alternatives to OPCs. But unlike conventional cementation mechanisms, geopolymerization possesses the challenge of two-part activation (admixing alkalis and soluble silicate solutions), restricting its outreach and utility to pre-cast segments. To overcome such barriers, the present work is aimed at developing composite geopolymerized cement (CGC) using a one-part fabrication technique by blending stone sludge (SS), fly ash (FA), re-melted electric arc furnace slag (EAF), silica fume (SF), and sodium hydroxide (NaOH) at constant CaO/SiO2 and SiO2/Al2O3 ratios. The as-casted CGC samples were subjected to detailed performance evaluations through assessments involving engineering and analytical tests. Accordingly, the developed CGCs satisfied the provisions prescribed for “General Use” cement per ASTM C1157 standards.

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Geopolymer Composites Fabricated Using One-Part Activation Technique

  • 会议论文

  • 发表日期：

    2025年

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  • Akash Samadhiya,
  • Mukund Lahoti,
  • Sayantan Chakraborty,
  • Krishna Kant Gupta

摘要

The overgrowing demand for land and infrastructure has stretched the yearly consumption of ordinary Portland cement (OPC) to a remarkable 4 BMT, engendering it as one of the most significant contributors to global greenhouse gas emissions. The current state of scientific advancements must adopt sustainable approaches for addressing future developments in which geopolymer technology can aid. Low CO2 discharges and advanced properties are among the key features of geopolymers, enabling them to be considered ecologically efficient alternatives to OPCs. But unlike conventional cementation mechanisms, geopolymerization possesses the challenge of two-part activation (admixing alkalis and soluble silicate solutions), restricting its outreach and utility to pre-cast segments. To overcome such barriers, the present work is aimed at developing composite geopolymerized cement (CGC) using a one-part fabrication technique by blending stone sludge (SS), fly ash (FA), re-melted electric arc furnace slag (EAF), silica fume (SF), and sodium hydroxide (NaOH) at constant CaO/SiO2 and SiO2/Al2O3 ratios. The as-casted CGC samples were subjected to detailed performance evaluations through assessments involving engineering and analytical tests. Accordingly, the developed CGCs satisfied the provisions prescribed for “General Use” cement per ASTM C1157 standards.