Formwork release composition and use thereof
AssigneeConstruction Research & Technology GmbH
InventorsAndreas Eisenreich, Sergi Vilches, Andres Fernandez, Josep Gatell, Uwe Holland
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Abstract
A formwork release composition containing formwork release oil, which contains a hydrophobic metal oxide and/or metal sulphide component is disclosed. Photocatalytically active compounds, such as particular semiconductors and in particular TiO2, are particularly suitable. The invention also concerns the use of the formwork release composition for producing exposed concrete. The concrete and mortar products thus produced are characterized by a homogeneous surface with self-cleaning properties that gives an enhanced resistance against weathering and a much longer lasting brilliance and whiteness.
Claims11
A method for the production of exposed concrete comprising applying a formwork release composition onto the surface of a formwork prior to placing an unset cementitious composition adjacent to the formwork, the formwork release composition containing formwork release oil, wherein hydrophobic metal oxide component(s) and/or metal sulphide component(s) are contained.
Dependencies are inferred from the claim text.