Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Benefits of Measuring Half-Cell Potentials and Rebar Corrosion Rates in Condition Surveys of Concrete Bridge Decks
The benefit of using half-cell potential measurements in condition surveys of concrete bridge decks was examined using data collected from several decks by visual inspection, sounding with chain drags, and measurement of half-cell potentials. As suspected, half-cell potentials on a deck were observed to fluctuate from survey to survey, mostly in response to seasonal fluctuations of temperature and moisture in the concrete. When half-cell potential surveys are performed in a sufficiently small grid spacing and the collected half-cell potentials are plotted on contour maps of isopotential lines, the locations of all existing active rebar corrosion and damaged concrete are indicated with a high degree of accuracy by relatively high potential gradients. When combined with the other inspection techniques, such a survey would, therefore, be extremely useful for estimation of repair quantity.
Benefits of Measuring Half-Cell Potentials and Rebar Corrosion Rates in Condition Surveys of Concrete Bridge Decks
The benefit of using half-cell potential measurements in condition surveys of concrete bridge decks was examined using data collected from several decks by visual inspection, sounding with chain drags, and measurement of half-cell potentials. As suspected, half-cell potentials on a deck were observed to fluctuate from survey to survey, mostly in response to seasonal fluctuations of temperature and moisture in the concrete. When half-cell potential surveys are performed in a sufficiently small grid spacing and the collected half-cell potentials are plotted on contour maps of isopotential lines, the locations of all existing active rebar corrosion and damaged concrete are indicated with a high degree of accuracy by relatively high potential gradients. When combined with the other inspection techniques, such a survey would, therefore, be extremely useful for estimation of repair quantity.
Benefits of Measuring Half-Cell Potentials and Rebar Corrosion Rates in Condition Surveys of Concrete Bridge Decks
G. G. Clemena (Autor:in)
1992
70 pages
Report
Keine Angabe
Englisch
Inclusion of Rebar Corrosion Rate Measurements in Condition Surveys of Concrete Bridge Decks
| British Library Online Contents | 1992
Benefits of Using Half-Cell Potential Measurements in Condition Surveys of Concrete Bridge Decks
| British Library Online Contents | 1992