Geology and Soil Mechanics, UW-Stout
Gradation Curve
Consider the following measurements obtained from a mechanical grain size analysis using sieves. Can you determine the mean size (D50), effective size (D10), coefficient of uniformity (CU), and the coefficient of curvature (CC) for this data?U.S Sieve Size |
Weight Retained (g) |
3/8 in. |
43 |
No. 4 |
195 |
No. 10 |
281 |
No. 40 |
127 |
No. 100 |
44 |
No. 200 |
25 |
pan (<0.075mm) |
135 |
Gradation curve graph
Here is the solution.
For questions or comments regarding these pages contact Dr. Alan Scott / scotta@uwstout.edu / this page was last updated April 03, 2000