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Characteristics of Carbonation of Concrete using Infrared Image

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2010 Pittsburgh, Pennsylvania, June 20 - June 23, 2010  1009344.(doi:10.13031/2013.29857)
Authors:   Seong-Soo Yoon, Ki-Sun Ryu, Jeong-Bae Jeon, Jin-Seon Park, Han-Joong Kim
Keywords:   Carbonation, Infrared image Method, Deterioration, Durability, Remaining life time

The reinforced concrete structure has long life cycle but deteriorating for life time. The mainly reason of this phenomenon is accumulation of carbon dioxide. This study describes characteristics of carbonation among factors which shorten decline concrete of durability time. Generally, carbonation does not matter the concrete itself, but it makes of passivity films of reinforcing bar. The calcium carbonate is produced through carbonation of concrete. And this is bigger than calcium hydroxide volume, and molecular weight. So, the microstructure of concrete is hard and dense. The transition of void can be changed the temperature of concrete surface. Many experimental and theoretical studies of carbonation was conducted. This study introduce the infrared thermal technique to identify characteristics of carbonation and measure strength and deteriorating level by carbonation in concrete structures of agricultural improvement project using Infrared thermal technique and estimated the remaining life time.

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