Composition having photocatalytic properties, TiO 2 -containing suspension for the preparation of a composition having photocatalytic properties, use of the suspension for the preparation of the composition, and methods for the production of concrete using the suspension

摘要

The invention relates to a TiO2-containing suspension for producing a composition having photocatalytic properties, wherein the TiO2-containing suspension 25 to 35 wt .-% of a mineral filler, 8 to 27 wt .-% TiO2, 1 to 10 wt .-% of a aqueous solution containing lignosulfonate and Naphthalinsulfonatformaldehydkondensat and 0.3 to 2.2 wt .-% of an aqueous solution of a polyacrylic salt and / or 0.3 to 2.5 wt .-% of a silane and / or siloxane-containing emulsion. Furthermore, the invention also relates to a production process for concrete using the TiO2-containing suspension.