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Article

CT Scans of Asbestos Cement Pipes as a Reference for Condition Assessment of Water Mains

1
KWR Water Research Institute, 3433 PE Nieuwegein, The Netherlands
2
Acquaint B.V., 8912 AV Leeuwarden, The Netherlands
*
Author to whom correspondence should be addressed.
Academic Editors: Francesco De Paola and Bruno Brunone
Water 2021, 13(17), 2391; https://doi.org/10.3390/w13172391
Received: 29 April 2021 / Revised: 18 August 2021 / Accepted: 20 August 2021 / Published: 30 August 2021
The water distribution network of The Netherlands contains around 30,000 km of asbestos cement (AC) pipes, which constitutes around 25% of the total network. As a pipe material, AC has a relatively poor performance, and therefore is a high priority for renewal. To help decide an effective order of replacement, the water utilities need condition assessment techniques that help them determine which pipes have the highest risk of failure. In the presented work, X-ray computed tomography (CT) was used to measure the degradation of AC pipes taken out of the field. These scans provide a description of the pipe degradation with unmatched detail. The results are compared with strength tests performed on the same pipes, revealing that detailed knowledge of the complete pipe degradation is more important than previously assumed. Moreover, comparison of the CT results to those of a commercial, non-destructive inspection technique was used as a new avenue for validation of this technique, demonstrating its future usefulness for attaining the detailed measurement of pipe degradation required by water utilities. View Full-Text
Keywords: condition assessment; drinking water distribution network; asbestos cement; X-ray computed tomography; pulse echo ultrasound condition assessment; drinking water distribution network; asbestos cement; X-ray computed tomography; pulse echo ultrasound
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MDPI and ACS Style

van Laarhoven, K.; van Steen, J.; van der Hulst, F.; Hernandez Delgadillo, H. CT Scans of Asbestos Cement Pipes as a Reference for Condition Assessment of Water Mains. Water 2021, 13, 2391. https://doi.org/10.3390/w13172391

AMA Style

van Laarhoven K, van Steen J, van der Hulst F, Hernandez Delgadillo H. CT Scans of Asbestos Cement Pipes as a Reference for Condition Assessment of Water Mains. Water. 2021; 13(17):2391. https://doi.org/10.3390/w13172391

Chicago/Turabian Style

van Laarhoven, Karel, Jip van Steen, Frank van der Hulst, and Hector Hernandez Delgadillo. 2021. "CT Scans of Asbestos Cement Pipes as a Reference for Condition Assessment of Water Mains" Water 13, no. 17: 2391. https://doi.org/10.3390/w13172391

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