Strength behaviour of concrete made with titanium dioxide as a partial cement replacement / Tengku Nor Qistina Engku Daud @ Tengku Din

This research work is done to find out the effect of Titanium Dioxide (TiO2) on the
compressive strength. Titanium Dioxide is a very small sized material with a
nanometres (nm) particle size. These materials are very efficient in altering the
properties of concrete at the ultrafine level because of their small size by filling up
the air voids and pores in the microstructure. For the experimental study M25 grade
of concrete is casted and cement is partially replaced by Titanium Dioxide (by
weight) in the proportions of 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0% and 3.5%. In
this study we use Titanium Dioxide (rutile based TiO2) of size 1000nm to 2000nm
to improve the compressive strength of the concrete. The cubes specimens with
dimension 100mm x 100mm x 100mm is casted and tested after 7 and 28 days of
curing. The maximum compressive strength is obtained for 1.0% of Titanium
Dioxide (TiO2) with 70mm height of slump with partial replacement of cement. To
achieve the desired result, only the small percentage of cement value can be
replaced.