top of page

Gravel: Gradation of Granular Materials

The term gradation, as applied to gravel mixtures, refers to the relative amounts of gravel, sand, and fines (silt and clay). A well-graded mixture has a minimum of air spaces to trap and hold water, and when compacted, achieves a high density and provides good load support.

© 2021 West Virginia Local Technical Assistance Program

​

​

​

304-293-9924

wvltap@gmail.com
ltaplogo1c_white - copy.png
bottom of page