Publication: Prediction of asbestos cement water pipe aging and pipe prioritization using Monte Carlo simulation
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Issued Date
2017-01-01
Resource Type
ISSN
0125-8281
Other identifier(s)
2-s2.0-85019025510
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Chulalongkorn University
Chulalongkorn University
Bibliographic Citation
Engineering Journal. Vol.21, No.2 (2017), 1-13
Suggested Citation
Wonsiri Punurai, Davis, Paul Prediction of asbestos cement water pipe aging and pipe prioritization using Monte Carlo simulation. Engineering Journal. Vol.21, No.2 (2017), 1-13. doi:10.4186/ej.2017.21.2.1 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/42616
Research Projects
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Thesis
Title
Prediction of asbestos cement water pipe aging and pipe prioritization using Monte Carlo simulation
Author(s)
Abstract
© 2017, Chulalongkorn University 1. All rights reserved. For buried Asbestos cement (AC) pipes in service, internal and external surface degradation occur by dissolution or leaching of cement-based components leading to loss of pipe strength. Since water quality and soil environment cannot be completely specified along a pipeline, a management methodology for AC water pipelines is required to estimate the probability of pipe failure as ageing proceeds. The paper describes the technique and its application to experimental data, which illustrates in three parts. First, the degradation rates in AC pipes are computed from 360 aggregated independent pipe segments residual strength test data taken from different pipe diameter sizes used in various water utilities locations in Thailand. Second, the predictions of service lifetime for AC pipes are estimated using Monte Carlo simulation in conjunction with the physical failure state formulations. Output from the simulation provides a number of failures recorded over time, which then allows the economic analysis for optimal pipe replacement scheduling. All is described in the third part. The end results can be used for water utilities to allocate government funds for future pipe maintenance activities.