The properties of bubble in lightweight concrete shows a difference depending on the ingredient and amount of foaming agent. To select foaming agent which is suitable for the purpose, it is essential to conduct a basic study to find the right properties of bubble.

• 최명인(한양대학교 일반대학원 건축시스템공학과, 석사과정) | Choi, Myeong In
• 이한승(한양대학교 건축학부 정교수, 공학박사) | Lee, Han Seung 교신저자