User Manual Q&AAnswer
Mar 10, 2025 - 04:29 AM
To assess concrete cover using the proceq Profometer PM8000 Pro, you can follow the guidelines provided by the German Concrete and Construction Association (DBV). The minimum concrete cover, cmin, is determined based on the quantiles specified in DIN 1045-1.
1. Determine the measurement surfaces: The measurement surfaces include each side of a wall, the upper side and under side of a ceiling, the sides of rectangular pillars, and the vertical sides, under side, and upper side of a beam.
2. Take at least 20 measurements for each measurement surface: It is recommended to take a minimum of 20 measurements for each measurement surface to ensure statistical validity.
3. Use the Neville distribution for statistical evaluation: The Neville distribution is used as the basis for the statistical evaluation. It has been proven to be effective through parameter studies on finished structural elements.
4. Calculate the median (XM): After acquiring all the measurement values, calculate the median (XM) for each measurement surface.
5. Determine the upper boundary value (XOG): To increase the validity of the evaluation, calculate the upper boundary value (XOG) using the median (XM) and the smallest measured value (Xmin). This upper boundary value will be used for the evaluation of the measured values (Xi).
6. Exclude measurement values exceeding the upper boundary value: Exclude any measurement values that exceed the upper boundary value (XOG). The quantitative analysis will be carried out with the reduced measurement series.
By following these steps and using the proceq Profometer PM8000 Pro, you can assess concrete cover on real structures according to the DBV guidelines. For more detailed instructions and information, refer to the user guide provided with the product.
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