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<p>Microgels are being explored as multifunctional admixtures in Portland cement, where water-based, additive-free, and scalable synthesis routes are desirable. This study reports the gamma radiation–induced synthesis of anionic, cationic, and zwitterionic microgels based on acrylamido-2-methyl-1-propanesulfonic acid and (3-acrylamidopropyl) trimethylammonium chloride, with 25&#xa0;kGy identified as the optimum dose. The zwitterionic microgel did not adversely affect cement setting or compressive strength and exhibited antimicrobial activity in agar well diffusion assays, demonstrating potential as a self-healing and antifouling cement admixture.</p>

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Bulk formation of zwitterionic microgel with additives by gamma radiation for large-scale application in self-healing cement

  • 期刊论文

  • 发表日期：

    2026年1月27日

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  • Sabrina A. Shaikh,
  • Kuldeep Rajpurohit,
  • Ejazul Haque M. Malik,
  • Ashok K. Pandey,
  • Hemlata K. Bagla

摘要

Microgels are being explored as multifunctional admixtures in Portland cement, where water-based, additive-free, and scalable synthesis routes are desirable. This study reports the gamma radiation–induced synthesis of anionic, cationic, and zwitterionic microgels based on acrylamido-2-methyl-1-propanesulfonic acid and (3-acrylamidopropyl) trimethylammonium chloride, with 25 kGy identified as the optimum dose. The zwitterionic microgel did not adversely affect cement setting or compressive strength and exhibited antimicrobial activity in agar well diffusion assays, demonstrating potential as a self-healing and antifouling cement admixture.