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. 2023 Jul 7;13:11023. doi: 10.1038/s41598-023-38083-z

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Microstructure at 20,000 times magnification with different mixing ratio. (a) Pure loess; (b) Mixed with 10% burnt rock particles; (c) Mixed with 20% burnt rock particles; (d) Mixed with 30% burnt rock particles; (e) Mixed with 40% burnt rock particles; (f) Mixed with 50% burnt rock particles.