Abstract: The present invention relates to a cementitous composite specifically engineered to possess self-cleaning abilities while maintaining their unique strain-hardening behaviour and the preparation of the said composite. The cementitious composite comprises a hydraulic cement, a plurality of fibers, in particular polyvinyl alcohol fibers wherein the ratio of the plurality of fibers to the hydraulic cement is in a range from 1 to 3% by volume; a self-cleaning agent, in particular nanoparticulate titanium dioxide (TiO2) wherein the weight ratio of the self-cleaning agent to the hydraulic cement is in a range from 0.01 to 1.

Abstract: Disclosed herein are phase change materials microencapsulated by a microcapsule having two shells, the first shell (directly encapsulating the phase change material) being an organic polymeric material and the second shell (an outer shell) being made from a doped TiO2 material. The microcapsules disclosed herein may be particularly useful for improving the energy efficiency of indoor environments, as well as providing compositions that they are applied to (e.g. paints) with self-cleaning properties.

Abstract: The present invention relates to a cementitous composite specifically engineered to possess self-cleaning abilities while maintaining their unique strain-hardening behaviour and the preparation of the said composite. The cementitious composite comprises a hydraulic cement, a plurality of fibers, in particular polyvinyl alcohol fibers wherein the ratio of the plurality of fibers to the hydraulic cement is in a range from 1 to 3% by volume; a self-cleaning agent, in particular nanoparticulate titanium dioxide (TiO2) wherein the weight ratio of the self-cleaning agent to the hydraulic cement is in a range from 0.01 to 1.