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Information and test methods available to evaluate the effectiveness of cathodic protection (CP) systems used to protect the steel reinforcement of conventionally reinforced atmospherically exposed concrete structures.
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Review of cathodic protection (CP) technology used in Europe and the U.S. over the past decade to combat corrosion deterioration, including cracking, displacement, and spalling of stone and masonry.
DOWNLOADABLE HISTORICAL DOCUMENT-Requirements to ensure adequate isolation of cathodically protected pipelines, especially those with high-quality dielectric coatings.
The present trend in establishing an effective level of external metallic surface corrosion control is the application of a barrier coating or adhesive on the metallic surface prior to the application of a thermal insulating material. Experience has shown that there is generally a limited beneficial effect from the application of cathodic protection (CP) to a bare or ineffectively coated metallic surface under thermal insulation.
This NACE technical committee report was prepared as an information guide for external corrosion control of thermally insulated underground metallic surfaces and considerations of the effectiveness of CP.
Corrosion associated with alternating current (AC) interference on buried steel pipelines. AC corrosion characteristics and proposed mechanisms. Approaches to protection and monitoring.
CP coupons have been used since the 1930s by several of the pioneers of the corrosion-control industry, both in North America and in Europe. Over the last two decades, the use of CP coupons has been rediscovered as a practical method to determine the level of polarization of a buried structure and to confirm the voltage drop in a potential measurement. Acceptance of CP coupon technology is slowly occurring. Research sponsored by the pipeline industry has explored the use of CP coupons and has helped validate the use of this technology.
A new design approach allows more precise design of cathodic protection systems, particularly in areas such as deep water or new geographic areas.
HISTORICAL DOCUMENT. Procedures to control corrosion of conventional reinforcing steel in Portland cement concrete structures through the application of chloride extraction or realkalization.
HISTORICAL DOCUMENT. Standard for achieving effective control of external corrosion on buried or submerged metallic piping systems or other buried metallic structures. System design. Coatings. Cathodic protection criteria & installation. Control of interference currents.
This standard presents methods and practices for achieving effective control of external corrosion on underground or submerged metallic piping systems and is intended for use by corrosion control personnel concerned with piping used for the transport of oil, gas, water, and other fluids. It is applicable to underground structures and piping buried on land, or submerged in water bodies such as lakes, rivers, bayous, and creeks.
HISTORICAL DOCUMENT. Guidelines for sacrificial (galvanic) cathodic protection (SACP) of reinforcing steel in atmospherically exposed concrete elements or structures. Not applicable to nonferrous, coated or galvanized reinforcement.
This AMPP standard practice presents guidelines for galvanic cathodic protection (GCP) of reinforcing steel in atmospherically exposed concrete elements or structures. These guidelines are intended for owners, engineers, architects, contractors, and those concerned with the mitigation of reinforced concrete corrosion through the application of GCP systems. The information in this standard as it relates to GCP systems is intended for atmospherically exposed concrete structures and is not applicable to concrete with nonferrous reinforcement or epoxy-coated, galvanized, or other types of coated reinforcement. GCP applications for buried and submerged reinforced concrete structures are not addressed in this standard.