CONCRETE REMOVAL METHODS AND SYSTEMS
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United States of America Patent
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May 5, 2015
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May 8, 2014
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Abstract
A method for removing concrete from a concrete mixing drum is disclosed. The method may comprise applying a solution including amorphous colloidal silicate to an interior surface of the concrete mixing drum, allowing the solution to penetrate concrete adhered to the interior surface, dislodging one or more pieces of concrete from the interior surface, removing the one or more pieces of concrete from the mixing drum, and allowing the solution to form a coating on the interior surface to counteract further adhesion between concrete and the mixing drum.
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