2den Torrent, R. u. Ebensperger, L., Studie u ber Metho- zur Ressung und Beurteilung derKennwerte des berdeckungsbetons auf der Baustelle[R],Office F6 d6 ral des Routes, VSS Rapport506, Bern, Suisse, 1993.
3NT Build 492, Concrete, Mortar and cement-based re- pair materials:Chloride migration coefficient from non-steady migration experiments [M],Nordtest Method,1999.
4Garboczi E.J. Permeability, diffusivity, and mi- crostructural parameters: A critical review, Cement andConcrete Research[R], July 1990, 20(4) :591-601.