Journal of Structural and Construction Engineering

Journal of Structural and Construction Engineering

The Environmental Resistance of Low-Carbon Geopolymer Concret, A Review Article

Document Type : Review

Authors
GholamReza Havaei 1
SeyedAli Mohseni 2
1 Assistant professor, Department of Civil and Environment Engineering, AmirKabir University of Technology, Tehran, Iran
2 Ph.D. student, Department of Civil Engineering and Environmental, Amirkabir University of Technology, Tehran, Iran
10.22065/jsce.2025.525693.3738
Abstract
Geopolymer is a new type of inorganic cementitious material developed in recent years, enabling the reuse of solid industrial waste and significantly reducing energy consumption and greenhouse gas emissions. It is considered an eco-friendly alternative to Ordinary Portland Cement (OPC). This paper compares the environmental resistance performance of geopolymer concrete and cement-based concrete in terms of resistance to chemical attacks (acid and salt), chloride ion penetration, carbonation, freeze-thaw, and alkali-aggregate reactions. The findings show that geopolymer concrete has superior resistance to chemical attacks, chloride ion penetration, and freeze-thaw cycles, but lower resistance to carbonation and alkali-aggregate reactions compared to cement-based concrete. Changes in precursor materials lead to differences in durability performance and failure mechanisms. The failure mechanisms of geopolymer concrete are primarily attributed to dissolved hydration products, expansive products, cracks, and increased porosity. These results highlight the potential for using geopolymer concrete in harsh environments. The paper also suggests several opportunities and challenges for future studies on its durability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keywords
Geopolymer concrete
concrete
concrete durability
environment
Strength

Subjects

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  • Receive Date 26 September 2024
  • Revise Date 02 December 2024
  • Accept Date 04 January 2025