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This study was aimed to study of factors and performance of material resistance on carbonation of concrete in real environment of Nakhon Pathom Province. The water binder ratios were 0.45 and 0.55. Using paint and plastering mortar on carbonation resistance of concrete. The results showed that the carbonation depth of paint concrete and plastering mortar concrete was lesser than that of bare concrete. While, the carbonation coefficient was then compared to that of bare concrete. The experimental results indicate that carbonation coefficient of paint concrete and plastering mortar concrete could be reduced by 75% and 60%. After that the data were analyzed for mathematical model. Make known , and . Finally, the result can be used in the design, planning and maintenance of reinforced concrete structures faced by the carbonation real environment of Nakhon Pathom Province.
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