earticle

영어

The purpose of this study is carbonation control of concrete by the ratio of Steel powder. First, The depth of carbonation and penetration depth profile of chloride ions in admixture mortar was decreased greatly by increase the displacement ratio of Steel powder and changing the property as compared with non-admixture mortar. Accelerated curing of corrosion after accelerated carbonation test is also performed to accelerate the corrosion of steel powder. The depth of carbonation correlates the pore volume and pore size distribution depend on exposure duration in the accelerated chamber. The penetration depth of mass in different environment of corrosion decreases due to the replenishment of pore by corrosion products. Based on these
test results, concentration depth profile and diffusion coefficient for chloride ions of mortar that mixed with steel powder was decreased 20%～80%, compared with plain mortar.