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August 26, 2025BuildingsOpen Access

Mechanical and Durability Properties of Concrete Prepared with Coal Gangue: A Review

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Authors

XJXiaorui JiaBeijing Technology and Business UniversityWLWeitao LiSouth China Agricultural UniversityDXDong XinNorth China University of Science and Technology

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Overview

This review assesses coal gangue's role as a supplementary cementitious material, highlighting its effects on concrete's mechanical strength and durability.

Key Points

  • Compressive strength improves by 15% when 30% of the aggregate is replaced with activated coal gangue, promoting sustainable practices.
  • When coal gangue replaces less than 20% of the cement, compressive strength can reach 95% of reference strength, showcasing its potential.
  • The review systematically analyzes the impact of coal gangue as both an aggregate and a mineral admixture, emphasizing its dual functional roles.
  • Future research is necessary to optimize admixture formulations for enhanced performance in coal gangue-based concrete.

Cite This Study

Jia et al. (2025) studied this question.

synapsesocial.com/papers/68af63ddad7bf08b1eae3eb1https://doi.org/10.3390/buildings15173048
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  1. 1Study of Mechanics and Durability of Non-Spontaneous Combustion Coal Gangue Coarse-Aggregate High-Performance Concrete2024 · 11 citations
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  3. 3Correlations between Mechanical Properties of Low-Calcium Fly Ash Geopolymer Concretes2017 · 80 citations