Characterization of Coarse Porous Media

by Frank H. Pearson, (M.ASCE), Asst. Dir.; San. Engrg. Research Lab., Univ. of California, Berkeley, Calif.,
Archie J. McDonnell, (M.ASCE), Prof. of Civ. Engrg. and Dir.; Water Resources Research Center, The Pennsylvania State Univ., University Park, Pa.,

Serial Information: Journal of the Environmental Engineering Division, 1977, Vol. 103, Issue 4, Pg. 615-624

Document Type: Journal Paper


A methodology is presented to characterize shape factor and surface area of coarse filter media. For several regular geometrical solids the variation of shape factor with a dimensionless parameter of maximum relationships were similar to that obtained by measurement on particles of crushed stone. Using this relationship, the shape factor and surface area of a stone particle could be estimated with a standard error of 4% from maximum dimension and weight, where the unit weight is known.

Subject Headings: Porous media | Particles | Filters | Geometrics | Parameters (statistics) | Gravels | Rocks | Errors (statistics)

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