Zero-Cement Geopolymer Concrete: Performance Analysis Using Alternative Binders like GGBS, Metakaolin, and Silica Fume
Abhiraj Pratap Singh1, Kashfina Kapadia Memon2
1M. Tech Scholar, Civil Engineering, Technocrats Institute of Technology-Advance, Bhopal
2Professor, Civil Engineering Department, Technocrats Institute of Technology, Bhopal
Corresponding Author: rajabhaiya8662@gmail.com
Abstract:Cement production is a significant contributor to global CO₂ emissions, accounting for nearly 8% of the total anthropogenic carbon footprint. The urgent need for sustainable alternatives has driven the development of geopolymer concrete, a promising material that eliminates the reliance on Ordinary Portland Cement (OPC). Geopolymer concrete utilizes industrial byproducts such as Ground Granulated Blast Furnace Slag (GGBS), Metakaolin (MK), and Silica Fume (SF) as alternative binders, which react with alkaline activators to form a hardened matrix with superior mechanical and durability properties. This paper presents a comprehensive review of the performance analysis of geopolymer concrete incorporating these alternative binders. The study examines the role of each binder in enhancing compressive strength, flexural strength, durability, and microstructural integrity. Additionally, the influence of curing conditions, mix proportions, and activator types on the performance of geopolymer concrete is discussed. The findings highlight the potential of zero-cement geopolymer concrete as an eco-friendly, high-performance alternative to conventional cementitious materials. The review also explores the challenges associated with large-scale adoption, including standardization issues, long-term durability concerns, and practical implementation strategies. By summarizing the latest research advancements, this paper aims to provide valuable insights for future studies and promote sustainable construction practices through the use of geopolymer concrete.
Keywords:Recycled Concrete Aggregate (RCA), Construction and Demolition (C&D) Waste, Fly Ash, Sustainable Concrete, Taguchi Method, Compressive Strength, Environmental Impact
