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The polyurea technology is not new to pipelining work, with earlier basic applications dating back more than 15 years. Much of this work was either performed by hand spraying (large diameter pipe) or simple robotic systems for individual joint sections of pipe. Continued work over the years has proven that in-place pipelines can be commercially completed as well. More recent work has even shown that in addition to long, straight runs, robotic developments have allowed for lining both 45° and 90° radius bends in the pipeline system.
The polyurea technology is not new to pipelining work, with earlier basic applications dating back more than 15 years. Much of this work was either performed by hand spraying (large diameter pipe) or simple robotic systems for individual joint sections of pipe. Continued work over the years has proven that in-place pipelines can be commercially completed as well. More recent work has even shown that in addition to long, straight runs, robotic developments have allowed for lining both 45° and 90° radius bends in the pipeline system. To date, pipelines of nominal 4” (10 cm) up to 96” (2.4 meter) can easily be accomplished using the polyurea spray elastomer technology and the robotic systems. Newer developments have also demonstrated pipelining of nominal 1” (2.5 cm) diameter with the polyurea technology. These robotic development works hand in hand with special performance modified polyurea systems fine-tuned to process on the robotic, as well as allowing for application thickness of up to 1” (2.5 cm) in thickness in a single pass. This presentation will discuss these robotic SIPP developments (Sprayed-in Place-Pipe), polyurea systems (PUA) designed for application work in industrial and water/wastewater applications as well as Industry Standards being prepared for robotic sprayed-in-place pipe.
As wastewater treatment processes have improved and collection systems are tightened to prevent infiltration, the corrosive nature of the wastewater environment has dramatically increased.
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In restoration cleaning of historic masonry, you usually know based on contaminants and building fabric what kind of cleaner will be effective on a dirty building. You’ll use one type of restoration cleaner for atmospheric staining, and another for biological soiling. You’ll have an idea, going in, what kind of restoration cleaner to at least try. Not having that kind of information, in my experience, is what makes paint removal from historic – or just old – masonry the most challenging branch of restoration cleaning.
Explains why concrete floors need protective treatments, identifies two main categories of protective treatments, and recommends appropriate protective treatments based on purposes and finishes of concrete floors.