Cement-based paving blocks for photocatalytic paving for the...

Details Cement-based paving blocks for photocatalytic paving for the... Cement-based paving blocks for photocatalytic paving for the...

C - Chemistry, Metallurgy

04

B

C04B 14/30 (2006.01) C04B 28/02 (2006.01) E01C 5/06 (2006.01)

Patent

CA 2515245

Paving blocks for photocatalytic paving comprising at least a base layer in cementitious material and a surface layer based on a cementitious composition comprising: at least a hydraulic binder, a photocatalyst capable of oxidizing organic and inorganic polluting substances present in the environment in the presence of environmental light, air and humidity, at least an aggregate, water and, optionally, a water reducing additive.

La présente invention concerne des blocs de pavement destinés à un pavement photocatalytique qui comprennent au moins une couche de base en ciment et une couche de surface à base d'une composition de ciment comprenant: au moins un liant hydraulique, un photocatalyseur capable d'oxyder des substances polluantes organiques et inorganiques présentes dans l'environnement en présence de lumière, d'air et d'humidité, au moins un agrégat, de l'eau et, éventuellement un additif réducteur d'eau.

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