To protect against corrosion, the water pipeline was lined internally with cement mortar after applying fusion-bonded epoxy with an abrasion-resistant overcoat.
For specifiers, contractors, and asset owners, it is necessary to make careful, informed decisions about which coatings to use for particular projects.
Engineering and selecting the most adequate and appropriate pipeline coating depends on a multitude of factors. Careful analysis of several critical factors must be considered, such as the pipe diameter, the service pressures or operating temperatures of the transport materials, the soil conditions if installing a landline, construction techniques for installation, cathodic protection (CP), and whether impressed current CP or sacrificial CP will be used.
Embedded technologies can provide monitoring capabilities that capture the onset of tank coating deterioration and follow the evolution of damage.
Because seawater contains a significant concentration of dissolved salts and is very corrosive to steel, infrastructure and assets in or near marine environments are particularly susceptible to corrosion.
Researchers have developed an alternative, less expensive anode material for alkaline water electrolysis, which they say promotes less carbon corrosion. The researchers say their new nanostructured catalyst can reduce the rate of carbon-induced corrosion often experienced in alkaline water electrolysis, used to produce hydrogen from renewable resources.
The installation of a weight on the Keystone oil pipeline in South Dakota upon its construction in 2008 appears to have caused mechanical damage to the coating, leading to a recent rupture and oil spill.
The objectives of the study were to develop a protocol for testing protective coating performance on pitted SS, evaluate how various surface preparation methods affect the coating performance on pitted SS, and determine a reliable coating application procedure to cover the pits with a holiday-free film so the integrity of offshore pitted SS is improved.
The FlexGel range of products are designed to halt the corrosion of carbon steel in subsea flexible and steel risers in the area of an outer sheath/coating damage. The innovation displaces oxygenated seawater from the region of the damage and replaces it with a noncorrosive gel.
Surface-applied corrosion inhibitors, which penetrate the concrete and form a protective film on the steel rebar, have successfully reduced the rebar corrosion rate and extended the service life of many types of reinforced concrete structures.
A major oil and gas operating company recently revised its engineering standards to include a novel water-borne spray coating system to protect against both atmospheric corrosion and corrosion under insulation (CUI).
U.S. Airmen with the 60th Maintenance Squadron (MXS) at Travis Air Force Base in California, USA are one of two bases currently testing a pair of lasers as a new method of removing paint and corrosion on aerospace ground equipment. They say their traditional method involves the use of an orbital sander or blasting machine.
Experts with a coatings specialist company explain the differences between floor coating systems based on polyurethanes and epoxies, and why the selection often depends on jobsite location. With each system offering differing properties suited to specialized uses, choosing the wrong solution can lead to costly repairs or even complete floor failure down the line.
Fermentation and oxidation processes used by anaerobic digesters in biomass plants can create a perfect recipe for corrosion, both at the gas and liquid phase. Sludge tanks also face similar issues.
The new additive system is comprised of a liquid healing agent encapsulated by a polymeric shell, which upon incorporation into a coating formulation can impart self-healing functionality to the coating. The formulation consists of an epoxy resin, a polar diluent, a corrosion inhibitor, and an adhesion promoter.