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October 16, 2025Advances in Cement Research

Investigation of the hydration mechanism and optimal mix proportions of granulated blast-furnace slag/fly ash based geopolymers

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Authors

JSJiayu SongYWYuhong WangTXTian Xu

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Overview

This study investigates optimal mix proportions and hydration mechanisms in geopolymers made from granulated blast-furnace slag and fly ash.

Key Points

  • Optimal GBFS:FA ratio of 3:2 yielded high flowability at 171 mm and a setting time of 32 minutes.
  • Under optimal conditions, compressive strength reached 51.48 MPa after 28 days with specific mass fractions of components.
  • The hydration mechanism was primarily governed by sodium silicate aluminate hydrate (N-A-S-H) formation.
  • Findings suggest that granulated blast-furnace slag and fly ash combinations can effectively reduce CO2 emissions in construction materials.

Cite This Study

Song et al. (2025) studied this question.

synapsesocial.com/papers/68f0ba59c50c73ebef9faaf9https://doi.org/10.1680/jadcr.25.00064
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Effect of Multi-Variable Mix Composition on the Setting Time and Flow Properties of Fly Ash-GGBFS Geopolymer Mortar2025
  2. 2New geopolymer preparation methods and its application by recycle of double-waste: ground granulated blast furnace slag and fly ash2024 · 3 citations
  3. 3Optimization of mix proportions and early-age hydration mechanism of alkali-activated FA-GGBS cementitious materials2026
  4. 4Experimental Investigation of Strength and Durability Performance on Geopolymer Concrete using Industrial Waste Material2025
  5. 5Sustainable high-performance injection geopolymers, role of GGBFS and water-to-binder ratio in strength, microstructure, and predictive modeling2025 · 6 citations