Enhancing the resistance to microbial induced corrosion of alkali-activated glass powder/GGBS mortars by calcium aluminate cement

Hafiz Asad Ali, Dongxing Xuan, Jian Xin Lu, Chi Sun Poon

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Microbial-induced corrosion of ordinary Portland cement concrete due to its low biogenic acid resistance is still a global concern, requiring scientists to develop sustainable alternative binders. Accordingly, this study investigates the biogenic acid resistance of alkali-activated glass powder/GGBS mortars with various amounts of calcium aluminate cement (CAC) to replace GGBS while fixing the glass powder (GP) at 75% by mass. The results revealed that incorporating CAC to replace GGBS at 15% in alkali-activated cement (AAC) mortars improved the resistance to microbial-induced corrosion due to incorporating more Al into the AAC gels and can be proposed as a sewer repairing material.

Original languageEnglish
Article number127912
JournalConstruction and Building Materials
Volume341
DOIs
Publication statusPublished - 25 Jul 2022

Keywords

  • Alkali-activated materials
  • Biogenic acid attack
  • Calcium aluminate cement
  • Leaching
  • Microbial-induced corrosion
  • Waste glass powder

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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