Question: The backfill material for a vibroflotation project has the following grain sizes: D10 = 0.18 mm D20 = 0.31 mm D50 =

The backfill material for a vibroflotation project has the following grain sizes:
• D10 = 0.18 mm
• D20 = 0.31 mm
• D50 = 1.98 mm
Determine the suitability number, SN, and rate it as a backfill material.

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