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Tests to evaluate atmospheric surface coatings…(1) atmospheric exposure…(2) coating properties…(3) accelerated tests Historical Document 1988
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Control of corrosion in reinforced concrete structures including prevention protection and mitigation. Applicability considerations for the life cycle of the structure and use of proactive maintenance will also be presented.
When protective coatings are to be applied to structures, it is important that the surface is clean and dry if premature failure of the coating is to be prevented and the full coating service life achieved. In many situations for both new build and repair of structures, blast cleaning of the surface is required to remove contamination and to create an anchor pattern to enhance the adhesion of the coating system to the substrate.
Many coating product data sheets call for surface profiles of 3-4 mils. Others call for 1.5-2 miles surface profile for a very similar coating type – why should this be? To start to understand this we need to first of all look at why we measure the surface profile on steel surfaces. It pretty much comes down to two main things.
Procedures to design, install, and inspect thin-film organic linings in carbon steel process vessels to prevent corrosion, other degradation or product contamination.
Using concrete for enhancing a property’s value has opened the door to a wide variety of new materials and techniques, which are described and compared here.
New high-solids coatings are sometimes required to meet volatile organic compound (VOC) legislation. Lack of data on same needs accelerated test methods to evaluate performance. The test method must: • Be performed using commercially available equipment • Take a relatively short time period. • Correlate with real life exposure.
Two test methods for evaluating - to an expected lifetime criterion - embeddable anode materials (such as titanium (Ti) mesh) for cathodic protection (CP) of atmospherically exposed steel-reinforced concrete.