A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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 (author)
1992
70 pages
Report
No indication
English
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