Save 20% on select titles with code HIDDEN24 - Shop The Sale Now
The author previously introduced a method to evaluate protective coatings using a novel segmented cell approach. (1) Briefly, the technique intended to monitor natural current exchange between isolated segments, coated or uncoated, to supplement visual rankings of coating performance. The goal was to predict failure earlier than might otherwise be visible or to distinguish between coatings that had a similar visual appearance at the end of the proscribed test period. The experimental design also allowed for the instrumented segments, which act as sensors, to be prepared and coated as intended for a real-world industrial exposure, i.e., the metallic surfaces could be abrasive blasted and painted unlike thin-film, foil-like sensors also explored for similar purposes.
We are unable to complete this action. Please try again at a later time.
If this error continues to occur, please contact AMPP Customer Support for assistance.
Error Message:
Please login to use Standards Credits*
* AMPP Members receive Standards Credits in order to redeem eligible Standards and Reports in the Store
You are not a Member.
AMPP Members enjoy many benefits, including Standards Credits which can be used to redeem eligible Standards and Reports in the Store.
You can visit the Membership Page to learn about the benefits of membership.
You have previously purchased this item.
Go to Downloadable Products in your AMPP Store profile to find this item.
You do not have sufficient Standards Credits to claim this item.
Click on 'ADD TO CART' to purchase this item.
Your Standards Credit(s)
1
Remaining Credits
0
Please review your transaction.
Click on 'REDEEM' to use your Standards Credits to claim this item.
You have successfully redeemed:
Go to Downloadable Products in your AMPP Store Profile to find and download this item.
A two-year FHWA one-coat study was launched in November 2006 to evaluate various commercially available coating materials that can be applied as one-coat systems to new steel bridges. Seven one-coat systems, a 3-coat and a 2-coat control were selected and tested in three outdoor environments.
Organic coatings are the most used method of corrosion prevention and protection of metallic substratesin many industries. Owners in both the public and private sectors will invest significant resources intotesting coating options to provide the best protection for new and existing products or infrastructure.Often, this testing defaults to some variation of accelerated salt spray testing or outdoor marine exposurewith results being based on aspects such as visual measurements of rust through, corrosioncreepage/undercutting, and blistering.
The marine inspector is responsible for monitoring the coating specification in its simplest form. Applicators and shipyards get caught up with the inspectors when warranties are mentioned. As I have discussed with owners, yards and applicators, I know of no way to dial in an inspectors criteria based upon warranty. The inspector’s criteria will be based upon the coating specifications. How he handles this depends upon his training, experience and education. Many third party inspectors come from coating companies or applicators. They may or may not get certification from NACE or SSPC.
Almost 20 years ago the use of Ultra High Pressure Waterjetting (UHP) in shipyards for maintenance and for offshore projects started to be pushed, due to the development of surface and moisture tolerant paint technology becoming available. This was recognized by the likes of US Navy and Petrobras at the time.