Materials Selection & Design

Wire/Strand Slippage—A Potential Failure Mode for Post-Tensioning Tendons

A forensic investigation of unbonded, post-tensioning tendons on a large structure revealed relatively advanced levels of strand corrosion within and inboard of the end anchors. Strand corrosion within anchors was so advanced that wires had disengaged from the wedges, resulting in slip, contraction, and consequent load reduction in the strand.

Correcting Concrete Corrosion

Corrosion of the reinforcing steel in concrete is a worldwide problem that causes a range of economic, aesthetic, and utilization issues. However, if corrosion effects are considered in the design phase and the right decisions are made prior to construction, buildings can be constructed to resist corrosion.

Corrosion Risks and Mitigation Strategies for Offshore Wind Turbine Foundations

An increasing number of wind turbine structures have been installed, particularly on monopile foundations. Corrosion experiences and mitigation strategies reported by the offshore wind energy industry for these foundations are discussed.

Corrosion of Copper Alloys in Consumer Electronics Environments

Results of corrosion testing on eight alloys from five copper alloy families commonly used in the consumer electronics industry are presented. Short-term exposures were conducted in simulated consumer environments such as a salted carbonated cola beverage, artificial human perspiration, and phosphate-buffered saline.

Evaluating Sensors to Monitor Steel Corrosion in Concrete Structures

Corrosion costs have compelled the Florida Department of Transportation (FDOT) Corrosion Research Laboratory (Gainesville, Florida) to investigate new technologies and methods that can assess concrete bridge structures for corrosion

NACE Technical Committees—Volunteering Has Its Rewards

Want to know how you can become more active in NACE? There are many opportunities for NACE members to volunteer, and the technical committees offer many benefits such as having an impact on industry standards, developing a network of peers, and enhancing your career.

Century-Old Stormwater Tunnel Rehabilitated with Spray Lining

When a 200-ft (61-m) stretch of an arch tunnel on a stormwater collection line in the old town section of Guangzhou, China suffered severe damage to the brick-and-masonry structure due to root intrusion and corrosion, a spray-applied lining was used for rehabilitation.

Corrosion Basics: Tank and Containment Linings

Some of the most critical uses of protective coatings involve service conditions that require the use of coatings as linings. They may be the same coatings that are used in atmospheric or underground service, but they are usually specially formulated for three specific purposes.

Wrap Repair Saves Failing Seawater Filter Vessel

A unique wrap was used to repair a seawater bulk media filter vessel on an offshore oil and gas platform in the Gulf of Mexico. The bottom of the vessel was suffering from external damage due to the heavily corrosive environment and seawater being transported.

IMPACT Study Benchmarks Corrosion Management Practices Across Industries

NACE International has embarked on a study—IMPACT—that goes beyond the economic effects of corrosion; it emphasizes how to integrate corrosion technology with organizational management systems to optimize corrosion decisions with respect to both cost savings and concern for safety and the environment.

New Mexico’s Iconic Steel Bridge Turns 50

In September 2015, when the iconic Rio Grande Gorge Bridge reached its 50th year of service, it coincided with the bridge’s biennial inspection that scrutinizes the entire structure for coating failure, corrosion, cracks in the steel, and other structural integrity issues.

IMPACT Study to Provide Tools for Corrosion Management

NACE International’s International Measures of Prevention, Application, and Economics of Corrosion (IMPACT) study is nearing completion and will be released in March 2016. A segment of the report focuses on the Corrosion Management System Framework and how a company can incorporate one into its own program.

Lack of Basic Corrosion Control Results in Catastrophes

Safety, function, and service life should be a part of every project. To address these parameters, consideration must be given to design, choice of materials, construction methods, active and passive surface protection, and other parameters.

Continuous Remote Corrosion Monitoring Supports Environmental Compliance for Jetty Operations

Ships and barges need a certain amount of water depth to safely load and unload product, so most facilities use jetties to enable vessels to moor in deeper water. The use of carbon steel, however, opens up the risk of internal corrosion.

IMPACT Breaks New Ground in the Study of Corrosion Management

NACE International has embarked on a new study, IMPACT, that not only addresses the economic effects of corrosion, but focuses on public safety, environmental concerns, management, and planning on a global basis.