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November 11, 2025ProcessesOpen Access

Experimental Investigation and Numerical Simulation of Freeze–Thaw Damage Behavior in Coal Gangue Concrete Used in High-Altitude Cold Western Mines

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Authors

GGGuojun GaoJCJiaxin CuiMGMingtao Gao

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Overview

Experimental tests reveal that degradation of compressive strength and elastic modulus increases with freeze–thaw cycles in coal gangue concrete, suggesting an optimal replacement rate of 20%.

Key Points

  • The compressive strength drops significantly with increasing freeze-thaw cycles, highlighting deterioration effects.
  • Compressive strength and elastic modulus decreased by up to 51.1% and 92% respectively after 80 cycles.
  • Finite element analysis was utilized to develop a constitutive model for coal gangue concrete under freeze-thaw conditions.
  • Optimal coal gangue replacement rate for enhancement of mechanical performance is determined to be 20%.

Cite This Study

Gao et al. (2025) studied this question.

synapsesocial.com/papers/69252e9ec0ce034ddc356560https://doi.org/10.3390/pr13113654
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Also Consider

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

  1. 1Multi-Scale Analysis of the Damage Evolution of Coal Gangue Coarse Aggregate Concrete after Freeze–Thaw Cycle Based on CT Technology2024 · 19 citations
  2. 2Study on the Freeze-Thaw Deterioration Mechanism of Activated Coal Gangue Cementitious Concrete2026
  3. 3Deterioration of activated coal gangue powder concrete under combined sulfate attack and freeze-thaw cycles2025 · 1 citations
  4. 4Research on the effect of aggregate characteristics influencing macro-mechanical degradation and meso-damage evolution in coal gangue concrete with freeze-thaw performance2026
  5. 5Mechanical performance and microstructural degradation of raw coal gangue aggregate concrete under chloride freeze–thaw exposure2026