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Estimation of Dead-End Pore Volume in Soils from Transient- and Steady-State Diffusion Coefficients¹

ABSTRACT

A means of estimating dead-end pore volume in porous materials using transient- and steady-state diffusion coefficients is presented. The few available data indicate that dead-end pore volume in soils is a small percentage of the total pore volume.

¹ Joint contribution from the Soil and Water Conservation Research Division, ARS, USDA, and the Illinois Agr. Exp. Sta., Urbana, Ill.

² Research Physicist, US Water Conserv. Lab., Phoenix, Ariz., and Professor of Soil Physics, University of Illinois, respectively.

Received for publication July 13, 1966. Accepted for publication October 19, 1966.