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Preventing Carbonation of High-volume SCM Concrete by Painting Emulsified Refined Cooking Oil
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 Title & Authors
Preventing Carbonation of High-volume SCM Concrete by Painting Emulsified Refined Cooking Oil
Choi, Young-Doo; Han, Cheon-Goo;
 
 Abstract
The aim of this research is to suggest the carbonation preventing method of concrete by using surface painting substances. As the tested concrete cases, Plain mixture of 100 % of OPC, FA30, and BS60, for the concrete mixtures incorporating 30 % of fly ash, and 60 % of blast furnace slag, respectively. As the control factors, application on the concrete surface, and two-different types of painting substances were used: emulsion pain (EP), and refined cooking oil (RCO). As the test results, FA30 showed the fastest carbonation was shown while Plain mixture showed the slowest carbonation. The carbonation depth was increased with age for regardless the mixtures, but RCO showed the most outstanding performance of carbonation prevention. Namely, for 28 weeks of age, applying RCO showed approximately 46, 28, and 34 % of carbonation preventing performance for Plain mixture, FA30, and BS60, respectively, while applying EP showed approximately 13 % in average for all concrete mixtures. Therefore, it is considered that RCO has a favorable performance of preventing carbonation of concrete.
 Keywords
Refined Cooking Oil;Emulsion Paint;Carbonation Depth;Supplementary cementitious materials (SCMs);
 Language
Korean
 Cited by
 References
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