Synthesis and characterization of titania-silica fume composites and their influence on the strength of self-cleaning mortar

The TiO2-SF composite powders have a good pozzolanic activity and can be used for the partial substitution of Portland cement in the preparation of self-cleaning mortar. The values of compressive strength of mortars with 3 wt%. TiO2-SF powders are higher as compared with those assessed for reference (Portland cement mortar), especially for longer hardening times (28, 90 days).