Concrete is an essential material in all constructions
throughout the world. It has lot of uses in our daily routine life.
Every material has to deteriorate and damage due to many factors
in the same way the concrete also deteriorates. The carbonation
process is identified as a main reason for the corrosion in
reinforcement concrete structure. The mechanism of carbonation
which includes the entrance of carbon dioxide (CO2) into the solid
permeable framework of concrete to shape a situation by
decreasing the pH around the fortification and inception of the
corrosion procedure. This paper investigates the impact of the
carbonation on the characteristics of the concrete like strength in
compression, split tensile strength, flexural strength, shear
strength and durability. The addition of supplementary
cementitious materials like fly ash, GGBFS, rice husk ash,
metakaolin is known to enhance the strength and durability of
concrete in construction. In this paper an accelerated carbonation
test has been done to assess concrete carbonation on specimens
made with cement and with the partial replacement of cement by
fly ash GGBFS, rice husk ash, metakaolin. An accelerated
carbonation chamber has been constructed for creating an
environment of carbonation process to occur and also the passage
of carbon dioxide gas is kept constant for all the cubes, cylinders
and beams. Concrete cubes, cylinders and beams are prepared for
M30 grade subjected to different percentages of carbonation.