January 19, 2010
Heat-Resistant Adhesive For Building Work
The "Parasols" in Seville feature components that are designed to be glued instead of bolted together. To prevent the adhesive from melting, it needs to withstand temperatures of up to 60 degrees. Researchers have optimized the adhesive's resistance to high temperatures.
The Metropol Parasols will be the new centerpiece of Plaza de la Encarnaci³n in Seville. As well as being an eye-catching work of art, the mushroom-like structures are also playing host to some pioneering construction techniques, with even the load-bearing structural components consisting of finely-wrought laminated veneer lumber beams. With mechanical joining methods ruled out for structural reasons, the beams are instead joined together by means of glued-in threaded rods. However, the high temperatures and relentless sunshine of a typical Seville summer could pose a significant challenge to the adhesive, in the worse-case it loses its ability to hold the components together.
"These are the kinds of solutions that will help to firmly anchor adhesive technology within the building industry," Kruse states. While adhesive bonding is widely used in the aircraft industry, the use of adhesion for structural applications in the building industry is still in its infancy. Yet the method opens up a whole new wealth of possibilities for architects.
Image Caption: The mushroom-shaped "Parasols" currently under construction in Seville feature components that are designed to be glued instead of bolted together. (Ã© J. MAYER H. Architekten)
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