Penetration

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Revision as of 01:02, 8 August 2007 by Ok (talk | contribs) (Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916))
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A term used in connection with piles to denote the depth to which a pile has been driven in the soil. Also used in connection with the testing of asphalts and asphaltic fluxes to determine viscosity. It is expressed in hundredths of a centimeter to which a standard needle penetrates the material.