Sunday, January 3, 2010

Having been in the aluminum handrail business for 34 years and the concrete restoration business for 10 years, I have learned about the problems that this industry faces। Hundreds of millions of dollars are spent each year on repairing concrete balcony edges and replacing railing due to aluminum corrosion that occurs when aluminum is embedded in concrete in a harsh (beach or salty) environment। The problem occurs (see drawing 1) when installing an aluminum railing with a minimum of a 2” post. One must core drill a 4” diameter hole 3½” deep and as close as possible to the edge of the slab. The post is then set in place by the use of hydraulic or gypsum based cement.

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