Chapter 2 Origin of Soil and Grain Size - Particle size distribution curve basics 

Hi, I really find your videos useful in supplementing my learnings in our soil mechanics class! Thank you so much!

what do I do if there is no corresponding value for D10? how do I calculate the coefficient of uniformity in this case

What causes change in distribution profile when one has larger particles and their mean is different example the range for one is 1 to 9 and the other 0 to 5.5 and their mean are different

Are there any other parameters we can calculate? when do we work with mm and when do we work with φ?

very good, thanks for this info, thanks👍👍

do we always just 'guess' the values of D10, D30, & D60 based from the PSD graph? is it possible to calculate for the exact values of D10, D30, & D60?

What information we can conclude from calculating the coefficient of gradation?