Journal Published Online: 01 January 1980
Volume 2, Issue 2

Formula for Calculating Spacing Factor for Entrained Air Voids



A spacing factor only for small voids is derived from the proportion of small voids to total voids. The formula can be used with any method of air determination in hardened concrete that includes denominating some voids as large and some as small. The formula is not dependent on the size criterion used. A graphic method of estimating the spacing factors is given: ¯L for total voids and ¯Ls for the proportion of small voids.

Author Information

Walker, HN
Virginia Highway & Transportation Research Council, Charlottesville, Va.
Pages: 4
Price: $25.00
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Stock #: CCA10183J
ISSN: 0149-6123
DOI: 10.1520/CCA10183J