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Now that you as a specialty coating / lining contractor have joined the fast-growing technology of polyurea elastomeric coating & lining systems, what’s the next step? The polyurea technology has grown in use by significant volumes since the initial start in the early 1990’s. Applications include concrete coatings / linings, steel coatings, traffic deck systems and specialty coatings.
Now that you as a specialty coating / lining contractor have joined the fast-growing technology of polyurea elastomeric coating & lining systems, what’s the next step? The polyurea technology has grown in use by significant volumes since the initial start in the early 1990’s. Applications include concrete coatings / linings, steel coatings, traffic deck systems and specialty coatings. As “polyurea” is a description of a complete technology area, there are a variety of systems / formulations available, and this can become very confusing. Add to that the growing list of companies that now offer some form of polyurea system, and it may seem that there are “smoke and mirrors” in the promotion of the system. You as a contractor need to know what questions to ask and what to look for in a polyurea system. With all the various systems that are available, how do you choose the proper system for the application project? Which polyurea supplier company should you as a contractor establish a relationship with? What if you require a specific system that may not be available, are the supplier companies in a position to assist with that special development or at least provide some feedback on the requirements? This paper will focus on the various types of polyurea systems available, the types of polyurea supplier companies and how to choose the proper polyurea system for the desired application area
Concrete and other cementitious surfaces are porous materials that will allow water and soluble contaminants to penetrate the structure leading to degradation. The effects of degradation can include efflorescence, laitance and physical defects such as cracking and spalling. Waterproofing concrete can protect it from freeze/thaw cycles, increase chemical resistance, and provide protection to imbedded reinforcing steel.
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The Federal Highway Administration has a top-level technology goal targeted toward the development and deployment of the “Bridge of the Future.” This is a conceptual short span bridge that demonstrates significant improvements over the current state of the practice – particularly with regard to ease and speed of construction and long-term durability.
A case study of how poor initial quality control resulted in a complete coatings rework of the underwater bottom (exterior hull) of a large Floating Storage Unit (FSU) and how a good quality control program, during rework, resulted in the documented long term performance of the second application underwater hull coating system.