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Fundamental and Shrinkage Properties of High Performance Concrete in Combined with Expansive Additive and Shrinkage Reducing Agent
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 Title & Authors
Fundamental and Shrinkage Properties of High Performance Concrete in Combined with Expansive Additive and Shrinkage Reducing Agent
Han Cheon-Goo; Kim Sung-Wook; Koh Kyoung-Taek; Cheol Han-Min;
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 Abstract
This study investigated the fundamental properties and shrinkage properties of high performance concrete with water/binder ratio of 0, 30 and with combination of expansive additive and shrinkage reducing agent. According to the results, the fluidity of high performance concrete showed lower the using method in combination with expansive additive and shrinkage reducing agent than the separately using method of that, so the amount of superplasticizer increased when the adding ratio of expansive additive and shrinkage reducing agent increased. However the air content of concrete increased when used in combination with expansive additive and shrinkage reducing agent, so the amount of AR agent decreased. The compressive strength showed the highest at of expansive additive, and decreased with an increase of the amount of shrinkage reducing agent. Furthermore, in order to reduce the shrinkage of high performance concrete, it was found that the using method in combination with expansive additive and shrinkage reducing agent was more effective than separately using method of that. Therefore, it analyzed that the combination of expansive additive of and shrinkage reduction agent of was the most suitable mixture, considering to the fluidity, strength and shrinkage under the condition of this experiment.
 Keywords
high performance concrete;drying shrinkage;autogenous shrinkage;expansive additive;shrinkage reducing agent;
 Language
Korean
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