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June 14, 2026SustainabilityOpen Access

Thermochemical Activation of Lightweight Slag–Perlite Alkali-Activated Slag (AAS): Overcoming Aggregate Brittleness and Sulfate Degradation

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Authors

HEHasan EkerDŞDemet Demir Şahin

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Overview

Randomized trial investigates mechanical properties and sulfate resistance in alkali-activated composites, suggesting viable industrial applications.

Key Points

  • This research aims to enhance the mechanical properties and sulfate resistance of alkali-activated slag-perlite composites.
  • Composites were cured at 20 °C and heat-treated at 60 °C.
  • Samples underwent mechanical processing and five soak-dry cycles in 5% and 10% Na2SO4 solutions.
  • Physicomechanical performance was measured, focusing on compressive strength and mass change.
  • Heat treatment increased compressive strength from 11.64 MPa to 92 MPa.
  • Ambient-cured samples showed a 12% mass increase under 10% Na2SO4, with complete mechanical failure.
  • Heat-treated samples had a limited 2.6% mass increase and retained a compressive strength of 5.17 MPa.

Cite This Study

Eker et al. (2026) studied this question.

synapsesocial.com/papers/6a2e4632b1cc60ccdea8afbdhttps://doi.org/10.3390/su18125981
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Also Consider

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