A Study on Thermal Spraying Sacrificial Anode Applied in Concrete Structure Cathodic Protection

2014 ◽  
Vol 1015 ◽  
pp. 215-218
Author(s):  
Ya Ping Wang
Keyword(s):  
Cathodic Protection ◽  
Concrete Structure ◽  
Electrochemical Method ◽  
Thermal Spraying ◽  
Sacrificial Anode ◽  
Reinforced Concrete Structure ◽  
Sacrificial Anodes ◽  
Protection Method ◽  
Microscopy Method ◽  
Better Than

In this work, the thermal spraying sacrificial anode was investigated as reinforced concrete structure cathodic protection method. During our experiment, the performance of the thermal spraying sacrificial anode was studied using electrochemical method, metallographic microscopy method and simulation tests. And the results show that the thermal spraying sacrificial anodes are better than traditional sacrificial anodes. The method of thermal spraying applied in sacrificial anode field is successful, which solve the problem of insufficient driving initial potential of traditional sacrificial anode in the concrete structure.

Characterization of Al-Zn-Sn as Sacrificial Anodes to Protect Underground Oil Pipelines in Al-Hilla Regional

2012 ◽  
Vol 628 ◽  
pp. 135-143
Author(s):  
Kadhim F. Al-Sultani ◽  
Jenan Nasser Nabat
Keyword(s):  
Aluminum Alloys ◽  
Cathodic Protection ◽  
Steel Sample ◽  
Sacrificial Anode ◽  
Sacrificial Anodes ◽  
Oil Pipelines ◽  
Protection Potential ◽  
Pass Through ◽  
Selection Of

Sacrificial anode cathodic protection is one of the most widely used methods in protecting buried oil pipe lines against the corrosion damages. In the present work, a series of Aluminum alloys have been prepared as sacrificial anodes candidates to be used in the protection of the oil pipelines that pass through the Al-Hilla region. These prepared alloys were microstructurally and electrochemically characterized to evaluate their performance as Al-sacrificial anodes for cathodic protection of oil pipes The relationships between the protection potential with time, sacrificial anode life, discharge currents, and capacity of sacrificial anodes were found, taking into consideration the distance between sacrificial anode and protected steel sample. According to the results obtained, the best selection of sacrificial anodes was (Al-4% Zn-0.5% Sn) alloy at 30cm in Al-Hilla region.

Effects of Tin on Aluminum – Zinc Alloy as Sacrificial Anode to Protect Underground Oil Pipeline in Al-Mahawil Regional

2012 ◽  
Vol 468-471 ◽  
pp. 1585-1594 ◽  
Author(s):  
Kadhim F. Al-Sultani ◽  
Jnan Nasser Nabat
Keyword(s):  
Cathodic Protection ◽  
Steel Sample ◽  
Zinc Alloy ◽  
Sacrificial Anode ◽  
Oil Pipeline ◽  
Sacrificial Anodes ◽  
Oil Pipelines ◽  
Protection Potential ◽  
Pass Through ◽  
Selection Of

Abstract Sacrificial anode cathodic protection is one of the most widely used methods in protecting buried oil pipe lines against the corrosion damages. In the present work, a series of Aluminum alloys have been prepared as sacrificial anodes candidates to be used in the protection of the oil pipelines that pass through the Al-Mahawil region. These prepared alloys were microstructurally and electrochemically characterized to evaluate their performance as Al-sacrificial anodes for cathodic protection of oil pipes The relationships between the protection potential with time, sacrificial anode life, discharge currents, and capacity of sacrificial anodes were found, taking into consideration the distance between sacrificial anode and protected steel sample. According to the results obtained, the best selection of sacrificial anodes was Al-4% Zn-0.4% Sn) alloy at 30cm in Al-Mahawil region.

scholarly journals PENANGGULANGAN KOROSI PADA PIPA GAS DENGAN METODE CATODIC PROTECTION (ANODA KORBAN) PT PGN SOLUTION AREA TANGERANG

Power Plant ◽  
1970 ◽  
Vol 5 (1) ◽  
pp. 40-50
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Cathodic Protection ◽  
Redox Reaction ◽  
Control Measure ◽  
Electrolyte Solutions ◽  
Sacrificial Anode ◽  
Corrosion Control ◽  
Protection Method ◽  
Metallic Contacts ◽  
Impressed Current

Corrosion is a common problem that often occurs in metals. Corrosion is the damage or degradation of metal due to the redox reaction between a metal with various substances in the environment that produce undesirable compounds. In the event of corrosion, the metal will experience oxidation while the air will experience reduction. Corrosion can be regarded as an electrochemical event between the metal and its environment. Simply, corrosion can occur if there are anodes, cathodes, electrolyte solutions, and metallic contacts between the cathode and the anode. In submarine pipelines, corrosion problems occur frequently for a corrosion-control measure. One of them is by using cathodic protection method using sacrificial anode system (sacrificial anode) and system impressed current (tilt current)

Development of Sacrificial Anode Usable in High Specific Resistivity Solution by Parameter of Addition of NaCl

2019 ◽  
Vol 818 ◽  
pp. 139-144
Author(s):  
Kyung Man Moon ◽  
Myeong Hoon Lee ◽  
Tae Sil Baek
Keyword(s):  
Structural Steel ◽  
Current Density ◽  
Cathodic Protection ◽  
Weight Ratio ◽  
Ratio Test ◽  
Sacrificial Anode ◽  
Galvanic Current ◽  
Protection Method ◽  
Steel Piles ◽  
Surface Morphologies

A sacrificial anode cathodic protection method has been widely used in the steel pile by galvanic current by potential difference between sacrificial anode and corrosive structural steel. And, the sacrificial anode cathodic protection method have generally merits compared to impressed current method because it can be applied to everywhere which is not connected with electricity. However, when the steel piles of the pier are submerged in low conductivity solution mixed with fresh water and sea water, the structural steel piles mentioned above have not been protected occasionally perfectively due to decreasing of galvanic current caused by deposited with oxide film on the surface of anode. In this study, five types of samples which are added with NaCl(g) to Zn anode were prepared with ratio of NaCl(g)/Zn(g)x100(%). And galvanic currents, surface morphologies characteristics of these samples was investigated using electrochemical methods such as polarization curves, galvanic current and analysis of surface morphologies before and after reduction weight ratio test in order to evaluate the effect of addition of NaCl(g) affecting to quality of zinc anode. The 2.6 % sample added with NaCl(5g) showed the highest value of galvanic current density in 0.8% NaCl solution, however, the highest reduction weight ratio was also observed at the 2.6% sample. Therefore, it is considered that the higher galvanic current density, the higher reduction weight ratio, that is, the life of sacrificial anode is shorted with increasing of galvanic current. Moreover, all samples added with NaCl(g) to Zn sacrificial anode indicated higher galvanic current density compared to the sample with no addition of NaCl(g) in low conductivity solution. Eventually, it is supposed that the galvanic current can be increased with addition of NaCl(g) to Zn sacrificial anode in low conductivity solution.

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