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September 18, 2025Scientific ReportsOpen Access

Thermo-mechanical behavior and spalling resistance of alkali-activated slag versus cement mortars under rapid high-temperature exposure

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Authors

AAA. Y. F. AliSASabry A. AhmedYHYasser Helal

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Overview

This study compares the thermo-mechanical performance and spalling resistance of alkali-activated slag and cement mortars under rapid fire exposure.

Key Points

  • HSAAM exhibited superior spalling resistance compared to HSCM, maintaining integrity up to 600 °C.
  • At 400 °C, HSAAM retained 66.8% compressive strength, while HSCM experienced 10% failure.
  • Microstructural analysis revealed a nano-porous matrix in HSAAM, aiding in vapor release during high temperatures.
  • HSAAM showed 44% lower core temperatures than HSCM at 400 °C, highlighting its thermal insulation advantages.

Cite This Study

Ali et al. (2025) studied this question.

synapsesocial.com/papers/68d461d231b076d99fa61726https://doi.org/10.1038/s41598-025-19301-2
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Also Consider

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

  1. 1Experimental study on fly ash slag-based mortar performance under elevated temperatures2026
  2. 2Synergistic effects of specimen dimensions and curing regimes on mechanical, physical, microstructural properties and high-temperature performance of alkali-activated mortars2026
  3. 3Studies on the performance of alkali-activated aluminosilicate geopolymer mortar against exposure to acid, sulfate, and elevated temperature2024 · 2 citations
  4. 4Assessing the Influence of EAFS on Alkali Activated Mortar: Mechanical Properties, Chloride Penetration, and Elevated Temperatures2025
  5. 5Viability of hybrid and alkali-activated slag materials for thermal energy storage: Analysis of the evolution of mechanical and thermal properties2024 · 4 citations