Problem Solving Forum (13)


Should the surfaces of flanges be coated to prevent corrosion? Why or why not?


What’s the best way to prevent corrosion of reinforcing bar in concrete?


Zinc metalizing has been applied to concrete surfaces to provide cathodic protection to rebar in the concrete. What are the problems, if any, with applying zinc metalizing to concrete, and what is the best approach to addressing them?


What is the best method for protecting cables on suspension bridges from corrosion?


If an owner is using thermal spray aluminum on a pipe exterior as corrosion protection under insulation, and there is a holiday in the coating, will corrosion be substantially accelerated at the base carbon steel, being that the steel is now anodic to the aluminum?


I am the facility manager for a new amusement park that will operate year-round in a hot, humid environment. Some critical structural steel in the heart of the park needs to be protected from corrosion and at the same time to retain very good appearance properties for as long as possible, since maintenance painting is disruptive. What coating system should I select to achieve the longest useful life, given that cost is a secondary consideration, and how long will this system look good while providing corrosion protection?


Should the surfaces of flanges be coated to prevent corrosion? Why or why not?


Structural engineers often prefer mechanically galvanized bolts for accurate tightening while corrosion experts often prefer hot-dip galvanized bolts for superior corrosion protection. How do you resolve this inherent conflict?


What is the best method for protecting cables on suspension bridges from corrosion?


What are the most effective procedures for protecting steel and adjacent concrete together?


How do you protect concrete against microbiologically influenced corrosion?


When we use field splice plate connections on structural steel projects, how do we prevent rust and rust staining at bolt heads and at the splice plate/steel interface?


I am the facility manager for a new amusement park that will operate year-round in a hot, humid environment. Some critical structural steel in the heart of the park needs to be protected from corrosion and at the same time to retain very good appearance properties for as long as possible, since maintenance painting is disruptive. What coating system should I select to achieve the longest useful life, given that cost is a secondary consideration, and how long will this system look good while providing corrosion protection?


 
 
   

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