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

Author:

van Laarhoven KarelORCID,van Steen Jip,van der Hulst Frank,Hernandez Delgadillo HectorORCID

Abstract

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.

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. CT-Scans: Game-Changer in the Maintenance of PVC Drinking-Water Mains;The 3rd International Joint Conference on Water Distribution Systems Analysis & Computing and Control for the Water Industry (WDSA/CCWI 2024);2024-08-30

2. Fiber-Reinforced Cement Pipes as Simulants for Deteriorated Asbestos Cement Pipes in Rehabilitation Studies;Journal of Materials in Civil Engineering;2023-12

3. Exposure hazards from continuing use and removal of asbestos cement products;Annals of Work Exposures and Health;2023-11-09

4. Environmental and occupational exposure to asbestos as an ongoing challenge for environmental and health education;Journal of Elementology;2022-03-14

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