Abstract

Abstract: Concrete is the most widely used construction materials for building technology. However, cement production releases high amounts of carbon dioxide (CO2) to the atmosphere that leads to increasing the global warming. Thus, an alternative, environmental friendly construction material such as photocatalyst concrete has been developed. Photocatalytic concrete applies greener alternative binder, which is an innovative construction material that replaces the Portland cement. This technology introduced nano-particles such as nanoclay into the cement paste in order to improve their mechanical properties. The concrete materials also have been developed to be functioned as self-cleaning construction materials. The selfcleaning properties of the concrete are induced by introducing the photocatalytic materials such as titania (TiO2). Selfcleaning concrete that contains those photocatalytics will be energized by ultraviolet (UV) radiation and accelerates the decomposition of organic particulates. Thus, the cleanliness of the building surfaces can be maintained and the air surrounding air pollution canbe reduced. This paper briefly reviews about self-cleaning concrete