Enhanced Inspection of Buried Pipelines Subjected to Electromagnetic Interference from Transmission Power Lines and External Cathodic Protection System | Chapter 03 | Engineering Research: Perspectives on Recent Advances Vol. 12

 

Using the combined CIPS-DCVG (Close Interval Potential Survey)-(Direct Current Gradient Potential) technique provides data on the cathodic protection system's potential and information about possible defects in the pipeline coating. The great advantage of the combined inspection is that both techniques are performed simultaneously under the same climatic and soil conditions, eliminating spatial error. However, in order to properly assess the integrity of the pipeline, the data provided by the combined technique must be accurate. In regions with electromagnetic interference, the quality of the data collected in the field may be compromised. This study demonstrates through a practical example that the effects of electromagnetic interference on data collected in the CIPS-DCVG survey can be mitigated by using GPS-synchronised stationary data loggers at gas pipeline cathodic protection system measurement points.

 

Author(s) Details :-

 

Anderson Teixeira Kreischer
NTS-Nova Transportadora do Sudeste S/A, Rio de Janeiro, Brazil.

 

Fernando B. Mainier
UFF-Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.

 

Roger Matsumoto Moreira
UFF-Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.

 

Please see the book here :- https://doi.org/10.9734/bpi/erpra/v12/6711

Cathodic Protection in Onshore Pipeline: Case Studies on Corrosion-Induced Leaks and Environmental Impacts| Chapter 6 | Current Approaches in Engineering Research and Technology Vol. 8

The transportation of oil through onshore pipelines is a critical operation that requires stringent safety measures to prevent leaks, which can have severe environmental and economic consequences. This study investigates the role of cathodic protection in preventing external corrosion of pipelines, focusing on three case studies involving different failure scenarios. Key findings indicate that factors such as changes in soil resistivity, interference from nearby electrical infrastructure, and inadequate maintenance significantly contribute to cathodic protection failures, leading to pipeline leaks. The results underscore the importance of proper system design, continuous monitoring, and maintenance to mitigate the risk of corrosion and ensure safe pipeline operations. This study provides valuable insights into enhancing the reliability of cathodic protection systems in onshore pipeline networks.

 

 

Author (s) Details

Fernando B. Mainier
Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.

 

Luciana Torres
Universidade Federal Fluminense, Niterói, Rio de Janeiro, Brazil.

 

 

Please see the book here:- https://doi.org/10.9734/bpi/caert/v8/2572

Study on Rebar Corrosion Monitoring and Prevention Techniques | Chapter 10 | Research Developments in Science and Technology Vol. 9

A metal steadily deteriorating as a result of chemical interactions with the environment is known as corrosion. The expenditures of construction, maintenance, and repair have a significant impact on the structure's service life. Early reinforcement corrosion is mostly to blame for the structure's failure. This paper discusses the corrosion mechanism, contributing factors, corrosion monitoring methods, and corrosion prevention strategies. The concrete can be monitored for corrosion as a useful technique to detect durability issues earlier. Linear polarisation, active monitoring with sensors, DAQ cards, impedance measurement with chips, and other monitoring approaches are available. Use of cathodic protection inhibitors, fiber-reinforced polymers, and paints with different chemical compositions are a few preventative strategies.

Author (s) Details

N. Sooriyalakshmi
Department of Civil Engineering, Anna University, Chennai, India.

H. Jane Helena
Department of Civil Engineering, Anna University, Chennai, India.

View Book :- https://stm.bookpi.org/RDST-V9/article/view/7555