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RISScheduling Inspection and Renewal of Large Infrastructure Assets
Publisher: American Society of Civil Engineers
Abstract: A decision framework is introduced to assist municipal engineers and planners to optimize decisions regarding the renewal of large infrastructure assets such as water transmission pipes, trunk sewers, or other assets with ...
Economics of Inspection and Condition Assessment of High-Consequence Water Pipeline and Assessing Its Remaining Life: Theoretical Framework
Publisher: ASCE
Abstract: This paper describes an approach enabling well-supported, rational decisions about when to deploy inspection and condition assessment for high-consequence water pipelines, which techniques and technologies to select, and ...
Quantifying Effectiveness of Cathodic Protection in Water Mains: Theory
Publisher: American Society of Civil Engineers
Abstract: Cathodic protection is a viable measure to extend the residual life of water mains and thus defer capital investments in their rehabilitation and renewal. The effectiveness of cathodic protection varies with the unique set ...
Performance of Ductile Iron Pipes. II: Sampling Scheme and Inferring the Pipe Condition
Publisher: American Society of Civil Engineers
Abstract: Ductile iron (DI) pipes have been used in North America since the late 1950s. This paper describes how understanding gained on the geometry of external corrosion pits is used to devise a sampling scheme and to infer the ...
External and Internal Corrosion of Large-Diameter Cast Iron Mains
Publisher: American Society of Civil Engineers
Abstract: Deterioration in cast iron mains manifests itself in the form of corrosion. External corrosion is typically found to occur in pipes buried in corrosive soils while internal corrosion is dependent on water chemistry and ...
Quantifying Effectiveness of Cathodic Protection in Water Mains: Case Studies
Publisher: American Society of Civil Engineers
Abstract: Cathodic protection is a viable measure to extend the residual life of water mains and thus defer capital investments in their rehabilitation and renewal. The effectiveness of cathodic protection varies with the unique set ...
Scheduling Renewal of Water Pipes While Considering Adjacency of Infrastructure Works and Economies of Scale
Publisher: American Society of Civil Engineers
Abstract: Much research effort has been dedicated to the development of optimal strategies for rehabilitation and/or replacement of water mains. Some of the methods are intended for high-level planning of groups or cohorts of pipes, ...
Fuzzy-Based Method to Evaluate Soil Corrosivity for Prediction of Water Main Deterioration
Publisher: American Society of Civil Engineers
Abstract: A fuzzy-based method is proposed to evaluate soil corrosivity from soil properties such as soil resistivity, pH, redox potential, sulfide content, and soil type. The fuzzy-based method considers three levels of soil ...
Performance of Ductile Iron Pipes. I: Characterization of External Corrosion Patterns
Publisher: American Society of Civil Engineers
Abstract: Ductile iron pipes have been used in North America since the late 1950s. This paper describes research that endeavored to gain a thorough understanding of the geometry of external corrosion pits and the factors (e.g., soil ...
Effects of the COVID-19 Pandemic on Water Utility Operations and Vulnerability
Publisher: ASCE
Abstract: The COVID-19 pandemic affected the operation of water utilities across the world. In the context of utilities, new protocols were needed to ensure that employees can work safely, and that water service is not interrupted. ...