A study on improvement of durability of reinforced concrete structures mixed with Natural Inorganic Minerals

As a fundamental study on the corrosion resistance of reinforced concrete structures using Natural Inorganic Minerals exposed to carbonation environment. The test specimens were concrete(W/C = 60%) with Natural Inorganic Minerals content of 0% and 10%. Accelerated arbonation and autoclave corrosion accelerated curing were then conducted with them. The corrosion resistance of steel in concrete with Natural Inorganic Minerals content of 0% and 10% was examined by corrosion form, half-cell potential, polarization resistance, corrosion area and weight loss after 24 h of autoclave corrosion accelerated curing.The results of the study showed that as for steel in concrete with Natural Inorganic Minerals content of 10%, the corrosion resistance was more excellent than steel in concrete with Natural Inorganic Minerals content of 0%.

► We examined corrosion resistance of RC structures using reMEUM exposed to carbonation environment.
► The test specimens were concrete with reMEUM content of 0%, 10%.
► Accelerated carbonation and autoclave corrosion accelerated curing were then conducted with them.
► No large corrosion occurred in the 10% reMEUM concrete reinforcement.
► Concrete with 10% mixture of reMEUM composite has carbonation control effect in comparison to concrete without reMEUM.