Test Your Knowledge Series – Calculating and Meas...
KTA University “Test Your Knowledge” Series – Surface P...
Preventing Crevice Corrosion in New and Existing Steel Structures
Steel structures are often fabricated by bolting (or riveting) structural components together. Bolted joints result in multiple crevices between the bolted members and fasteners. These crevices are typically more susceptible to corrosion than flat surfaces because they tend to retain water/contaminants, they are difficult to properly coat and crevice geometry tends to support electrochemical phenomena…
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Preventing Crevice Corrosion in New and Existing Steel Structures
Steel structures are often fabricated by bolting (or riveting) structural components together. Bolted joints result in multiple crevices between the bolted members and fasteners. These crevices are typically more susceptible to co...
Test Your Knowledge Series – Calculating and Measuring Wet
Introduction/Background Wet film thickness (WFT) is the measured thickness of any applied wet paint that is liquid-based. The WFT is measured to assure that the correct amount of coating is being applied to the surface. &nbs...
KTA University “Test Your Knowledge” Series – Surface Profile Mea...
Introduction/Background Surface profile is defined as a measurement of the maximum peak-to-valley depth created by abrasive impingement against a surface during abrasive blast cleaning operations, or by an impact-type power tool. ...
KTA University “Test Your Knowledge” Series – Surface Preparation...
Surface Soluble Salt Detection and Analysis Introduction/Background Chemical contaminants on a surface can include chlorides, ferrous ions, sulfates, and nitrates, among other types of soluble salts. Chloride may come from deicing...
KTA “Test Your Knowledge” Series: Surface Preparation
Abrasive Blast Cleaning Standards SSPC: The Society for Protective Coatings and NACE International[1] has volunteer technical committees made up of subject matter experts that develop consensus standards that are drafted, balloted...
Corrosion Protection of a Halifax Harbour Bridge: Challenges, Iss
The Angus L. Macdonald Bridge is a 1.3-kilometer-long (4,265-foot-long) cable suspension bridge that carries automotive traffic over the Halifax Harbour between Dartmouth and Halifax. There are four approach spans to the west cabl...
Inspection of the Precast Concrete Surface Preparation and Coatin
Introduction – Precast concrete is cleaned and painted for both beautification and protection. Painting may involve the use of protective coatings, stains, or water repellents. For the materials to adhere and provide t...
Coating Systems for Precast Concrete
Introduction – When it is time to decide if precast or other concrete elements should be protected with a coating layer, consideration must be given to the reasons for coating it (protection and/or aesthetics), the type of structu...
Preparation of Precast Concrete for Painting
Introduction – Precast Concrete refers to concrete that is poured (cast) into a form (mold) at a manufacturing facility and allowed to cure under controlled conditions. A release agent is applied to the form prio...
Inspection of the Precast/Prestressed Concrete Fabrication Proces
Introduction – Inspections are an essential part of the precast concrete production process. Items such as sound walls, traffic barriers, and retaining walls are a few types of precast concrete products. Precast concrete dif...