Innovative Techniques/Technologies to Enhance the Durability of Civil Infra Structures (PART 1: Corrosion Monitoring Techniques/Technologies)

2018 ◽  
Vol 7 (2) ◽  
Author(s):  
Kanagamani Thangavel
Keyword(s):  
Corrosion Monitoring ◽  
Monitoring Techniques ◽  
Innovative Techniques

Corrosion-Monitoring Techniques and Applications

CORROSION ◽  
1989 ◽  
Vol 45 (10) ◽  
pp. 847-852 ◽  
Author(s):  
C. K. Walker ◽  
G. C. Maddux
Keyword(s):  
Corrosion Monitoring ◽  
Monitoring Techniques

Internal Corrosion Monitoring System Selection for Cross Country Natural Gas Pipeline: A Case Study of SHPPL

2015 ◽  
Author(s):  
Sandeep Vyas
Keyword(s):  
Natural Gas ◽  
Monitoring System ◽  
Gas Pipeline ◽  
Operating Conditions ◽  
Corrosion Monitoring ◽  
Compressor Station ◽  
Internal Corrosion ◽  
Monitoring Techniques ◽  
Natural Gas Pipeline ◽  
Pipeline Project

Reliance Gas Pipelines Limited (RGPL) is currently implementing a gas pipeline project from Shahdol, Madhya Pradesh to Phulpur, Uttar Pradesh for evacuation of gas produced from Coal Bed Methane (CBM) blocks owned by Reliance Industries Ltd. This pipeline will be hooked up with GAIL’s HVJ Pipeline at Phulpur. Over all Pipeline system includes 312 km (approx.) long trunk line, and associated facilities such as Compressor Station at Shahdol, Intermediate Pigging facilities, Metering & Regulating facilities at Phulpur and 12 No. Mainline valve stations. Gas produced from CBM blocks will be dehydrated within Gas Gathering Station facilities of CBM Project located upstream of pipeline Compressor station at Shahdol. Gas received at pipeline battery limit is dry and non-corrosive gas in nature, Internal corrosion is not expected in normal course of operation, however internal corrosion of the natural gas pipeline can occur when the pipe wall is exposed to moisture and other contaminants either under process upset conditions or under particular operating conditions. Even though internal corrosion is not expected during normal course of operations, to take care of any eventuality, it is proposed to implement Internal Corrosion Monitoring (ICMS) system in this project. ICMS will provide an efficient and reliable means of continuous monitoring internal corrosion. Internal Corrosion Monitoring (ICMS) system is used as a part of overall integrity management framework; to achieve two objectives viz., verify the corrosive behaviour of gas and to verify the efficacy of applied preventive actions. Philosophy involved in evaluating a suitable CM technique would include : • Applicable corrosion damage mechanisms, anticipated corrosion rates and probable locations. • Suitable CM technique and location based on process condition, system corrosivity, water content, pigging facilities, available corrosion allowance, design life, maintenance etc., • Measurement frequency. Some of the Corrosion Monitoring techniques used for pipeline and of relevance are: • Weight-loss Corrosion Coupons (CC), • Electrical Resistance probes (ER), • Linear Polarization Resistance Probe (LPR) • Ultrasonic Thickness Measurement (UT) • Sampling Points (SP) This paper discusses the merits / demerits of these corrosion monitoring techniques, considerations for selecting a specific technique for the Shahdol – Phulpur Gas Pipeline Project and highlights the implementation of the internal corrosion monitoring system.

scholarly journals Review of Physical Based Monitoring Techniques for Condition Assessment of Corrosion in Reinforced Concrete

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Ying Lei ◽  
Zhu-Peng Zheng
Keyword(s):  
Reinforced Concrete ◽  
Influence Factors ◽  
Steel Corrosion ◽  
Condition Assessment ◽  
Guided Wave ◽  
Interface Roughness ◽  
Corrosion Monitoring ◽  
Monitoring Techniques ◽  
Ultrasonic Guided Wave ◽  
Corrosion Sensor

Monitoring the condition of steel corrosion in reinforced concrete (RC) is imperative for structural durability. In the past decades, many electrochemistry based techniques have been developed for monitoring steel corrosion. However, these electrochemistry techniques can only assess steel corrosion through monitoring the surrounding concrete medium. As alternative tools, some physical based techniques have been proposed for accurate condition assessment of steel corrosion through direct measurements on embedded steels. In this paper, some physical based monitoring techniques developed in the last decade for condition assessment of steel corrosion in RC are reviewed. In particular, techniques based on ultrasonic guided wave (UGW) and Fiber Bragg grating (FBG) are emphasized. UGW based technique is first reviewed, including important characters of UGW, corrosion monitoring mechanism and feature extraction, monitoring corrosion induced deboning, pitting, interface roughness, and influence factors. Subsequently, FBG for monitoring corrosion in RC is reviewed. The studies and application of the FBG based corrosion sensor developed by the authors are presented. Other physical techniques for monitoring corrosion in RC are also introduced. Finally, the challenges and future trends in the development of physical based monitoring techniques for condition assessment of steel corrosion in RC are put forward.

scholarly journals Rebar Corrosion Monitoring and Prevention Techniques

2021 ◽  
Vol 10 (3) ◽  
pp. 219-222
Author(s):  
N. Sooriyalakshmi ◽  
Jane Helena. H
Keyword(s):  
Impedance Measurement ◽  
Chemical Compositions ◽  
Corrosion Mechanism ◽  
Corrosion Monitoring ◽  
Polarization Method ◽  
Active Monitoring ◽  
Maintenance And Repair ◽  
Monitoring Techniques ◽  
Prevention Methods ◽  
The Cost

Corrosion is the gradual degradation of the metal by chemical reaction with the environment. The service life of the structure is a major concern that depends on the cost involved in construction, maintenance, and repair works. This paper discusses the corrosion mechanism, factors influencing corrosion, corrosion monitoring techniques, and corrosion protection methods. The monitoring techniques include the Linear polarization method, Active monitoring using sensors, DAQ cards, impedance measurement using chips, etc. Prevention methods include an application of paints with various chemical compositions, cathodic protection inhibitors, the use of fiberreinforced polymer, etc.

Advances of Monitoring Corrosion in Reinforced Concrete Based on UGW

2014 ◽  
Vol 525 ◽  
pp. 499-503
Author(s):  
Zhu Peng Zheng
Keyword(s):  
Reinforced Concrete ◽  
Steel Corrosion ◽  
Guided Wave ◽  
Interface Roughness ◽  
Corrosion Monitoring ◽  
Future Trends ◽  
Rc Structures ◽  
Monitoring Techniques ◽  
The Past ◽  
Ultrasonic Guided Wave

Monitoring the condition of steel corrosion in reinforced concrete (RC) is imperative for ensuring structural serviceability and durability of RC structures. The techniques based on ultrasonic guided wave (UGW) gain more and more popularities as they have many advantages for monitoring corrosion in reinforced concrete. In this paper, UGW based monitoring techniques in the past decade are reviewed, including corrosion monitoring mechanism and feature extraction, monitoring corrosion induced deboning, monitoring pitting corrosion, monitoring corrosion induced interface roughness. Finally, the challenges and future trends in the development of UGW based monitoring techniques for condition assessment of corrosion inreinforced concrete are put forward in this paper.

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