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March 7, 2026Journal of Testing and Evaluation

Experimental Study and Prediction of the Elastic Modulus of Spontaneous-Combustion Coal Gangue Aggregate Concrete

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Authors

TZTirui ZhangQWQinghe WangZZZihao Zhao

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Overview

Experimental analysis investigates the elastic modulus of SCGA concrete, indicating environmental and construction implications.

Key Points

  • The study aims to explore how varying replacement ratios of coal gangue aggregates affect the elastic modulus of concrete.
  • Conducted experimental analysis with five sets of concrete samples at different SCGA replacement ratios
  • Evaluated the elastic modulus at various curing ages
  • Utilized machine learning algorithms for predictive modeling
  • Applied SHAP methodology for feature importance analysis
  • Increased SCGA replacement ratios resulted in reduced elastic modulus of concrete
  • Compared to natural aggregate concrete, 28-day elastic modulus decreased by 28.6% and 31.6% for 50% and 100% replacement ratios, respectively
  • 90-day elastic modulus showed reductions of 20.0% and 30.8% for the same ratios
  • XGBoost model exhibited the best predictive performance with a comprehensive performance index of 0.20

Cite This Study

Zhang et al. (2025) studied this question.

synapsesocial.com/papers/69abc2455af8044f7a4ebbc2https://doi.org/10.1520/jte20240690
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Also Consider

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