Fig. 4 | Scientific Reports

Fig. 4

From: Real-time aggregation forces monitoring in varied soil particle sizes using fiber bragg grating sensors

Fig. 4

Grain size distribution curves for the five particle-size fractions tested (0.125 mm, 0.425 mm, 0.85 mm, 1.18 mm, and 2.0 mm), plotted as cumulative percent passing versus particle diameter on a semi-logarithmic scale. The curves are based on ASTM D6913 (sieve analysis) for particles >75 μm and ASTM D7928 (hydrometer analysis) for particles <75 μm, adjusted to reflect the narrowly graded particle fractions used in the experiment.

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