While carrying out a series of study for improving the durability of High Volume Admixture Concrete using the ERCO, we found that the resistance of freezing and thawing declined due to the decrease of air amount in concrete when using the ERCO. In order to solve the problem, we carried out an experiment using the DEM. As a result of that, it did not affect the basic characteristic of concrete, and the problem of decreasing air amount caused by using the ERCO is also considered to be solved by securing the target air amount.

• 김준호(청주대학교 건축공학과, 석사과정) | Kim, Jun Ho
• 양성환(인천대학교 건축공학과, 교수, 공학박사) | Yang, Seong Hwan
• 박구병(한국시설안전기술공단 기획조정실, 공학박사) | Park, Gu Byoung
• 한민철(청주대학교 건축공학과, 부교수, 공학박사) | Han, Min Cheol
• 한천구(청주대학교 건축공학과, 교수, 공학박사) | Han, Cheon Goo 교신저자