An international airport was in the midst of an expansion project. As part of the project, 24-inch-diameter jet fuel piping was being installed by a subcontractor hired by the general contractor that was directly hired by the owne...
Introduction When applying coating system to structures such as bridges, tanks, and pipelines the main goal is to apply a continuous film to help prevent structural deterioration throughout the life of the structure. Unaddressed d...
When a coating system fails prematurely, it is rarely because of the coating itself. Either the surface preparation was inadequate, the surface was contaminated, or the coating was mixed or applied incorrectly. As the old adage go...
KTA Professional Engineers and Senior Consultants Jay Helsel & Mike Reina discuss maintenance painting including when to touch-up, overcoat, or remove & replace the coating. Scenarios are posed as the two discuss their pos...
Installation of a coating to a cathodically-protected pipeline or structure without first testing its resistance to cathodic disbondment can result in catastrophic failure of the coating. However, there are over twenty internation...
Moisture in walls can affect the performance of coating and water-repellent systems. While ASTM publishes standards for determining the moisture content of cementitious substrates, their primary focus is concrete floors. Until thi...
When steel is shop-painted, it is usually primed with a zinc coating, and the remaining coat(s)applied to all surfaces except the top of top flanges that will be embedded in concrete. If shear studs will be installed in the top f...
Galvanizing is the application of a zinc layer to steel by a variety of methods such as hot dip, continuous or electro-deposition. In many instances galvanized steel is not painted since the service life of galvanizing alone typi...
Background Ergonomics is a field study that involves the application of knowledge about physical, psychological, and biomechanical abilities and limitations of the human body. This knowledge is applied to the planning, design, and...
Fire resistive coatings generally refers to a broad group of materials known as sprayed fire resistive materials (SFRM). These coatings provide protection to structural steel in buildings and other structures by serving as an ins...
