One of the great concerns in view of the durability of reinforced
concrete is the corrosion of steel reinforcement in concrete. RC
structures exposed to chloride and high temperature environments
like sea, deicing salts, deserts and industrial zones suffer from
accelerated corrosion of rebars. There is no doubt that the
presence of chloride ions promote the disruption of the passive
layer causing corrosion of reinforcement and the chloride attack
becomes much more severe when coupled with high temperature.
Therefore, to be able to forecast the service life of RC structures
it is necessary to quantify the amount of corrosion. The chloride
attack and increase in the electrochemical reaction rate of
corrosion due to high temperature is an electrochemical
thermodynamic phenomenon influenced by several factors and some of
them are being overlooked in the past research works and have
difference in opinion. Also it was found that the experimental data
for the coupled effect of chloride and temperature on corrosion of
reinforcement especially in the high temperature range and high
chloride concentration is limited.
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