Chapter 2 Origin of Soil and Grain Size - Example 2 (PSD Curve)

Chapter 2 Example 2: Particle size distribution curve
Textbook: Principles of Geotechnical Engineering (9th Edition). Braja M. Das, Khaled Sobhan, Cengage learning, 2018.
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[@czarinacaballas6058]

Is there a solution to find d10's exact value, not the approximate?

[@uSeeGeo]

Typically, you would read the value from the graph directly. There is no "exact" value per se, but you could use adjacent data points (e.g., one with a y-value larger than 10% and one smaller than 10%) to do a linear interpolation.