What type of study is this?

This is a Quantitative Study study.

What question did this study set out to answer?

This research aims to examine the microstructural changes in coal caused by highly mineralized mine water exposure.

December 9, 2025Applied SciencesOpen Access

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Experiments reveal coal fragmentation and pore changes in saline solutions, showing implications for coal pillar stability.

This research aims to examine the microstructural changes in coal caused by highly mineralized mine water exposure.
Conducted indoor simulation experiments with coal immersed in salt solutions (1000–2000 mg/L)
Monitored solution chemical parameters through dynamic water quality analysis
Characterized pore-fracture structure using scanning electron microscopy (SEM) and a pore-crack analysis system (PCAS)
Increased mineralization led to significant fragmentation of the coal matrix
Pore quantity and irregularity of morphology enhanced with higher mineralization
Fracture network developed and interconnected more after immersion
Quantitative analysis indicated changes in pore area ratio and probability entropy

Tang et al. (2025) studied this question.

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