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CP Interference and CP Influence and how the two differ. Both will be demonstrated by case histories and some solutions will be presented.
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AC corrosion experiments were done on two kinds of typical soil simulants with different contents of (Ca2+), (Mg2+) and (Na+) to study the effects of environmental and cathodic protection parameters on AC corrosion rates.
Concerns related to stray DC interference. Including safety, testing, documentation and lessons learned. Also addressed are DC powered transit systems and other unordinary sources of DC interference.
This paper is based on a case study of cathodic protection of building foundation piles for several buildings installed on top of a landfill in the San Francisco Bay Area.
A research methodology has been employed to quantify the dynamic effects of anodic transients on CP and corrosion by means of an electrochemically integrated multi-electrode array, often referred to as the wire beam electrode (WBE).
To explore the damage tolerance of as thermally sprayed aluminium (TSA), a coated carbon steel bar with damage was exposed to synthetic seawater. TSA is capable of polarising the steel bar even with 90% of steel surface exposed.
This paper will discuss, examine, and conclude on the metallurgical differences and effectiveness between the centrifugal-cast silicon iron tubular anode and Die-cast silicon iron tubular anode based on the research and testing performed and reported by Independent Laboratory Testing.
Cathodic Protection of a 57 km long pipeline section requires a few milliAmps of CP current. A new motorway bridge is built above the pipeline causing a potential risk of shielding the low cathodic current.
The cathodic protection (CP) system of an offshore complex was modeled using boundary element analysis. Results of the simulation were validated against existing inspection data and used to optimize the established CP inspection program.
Special enhancements: (1) use the high temperature reference electrode - Ag/AgCl; (2) define the test temperature measurement procedure; (3) check the accuracy of the reference electrode; (4) develop an inexpensive anode isolation method.
There is a growing trend to supplement cathodic protection with Volatile Corrosion Inhibitors (VCI) beneath tank floors. This work is to investigate mutual compatibility and interactions of three different volatile corrosion inhibitors and cathodic protection.
Long-term (>1.5 years) field testing of reference electrodes and anodes are carried out on port facilities in Kozmino (marine conditions) and in Ural region (in soils). Experimental procedures and some observations made in course of the testing.