The use of recycled aggregate has been highly recommended for the environmental protection of nature and absolute shortage of natural aggregate's resource, but experimental methods adequate for each recycled product have not been established and also the data have not been enough to ensure the control of concrete quality. Thus, this study has an aim of applying high volume of recycled aggregate to the fabrication of concrete by investigating that production methods of recycled aggregate and its replacement ratio have effects on the performance of concrete.

• 이승택(한서대학교 토목공학과, 석사과정) | Lee Seung-Taek
• 정희영(한서대학교 토목공학과, 석사과정) | Jung Hee-Young
• 김상철(한서대학교 토목공학과, 교수) | Kim Sang-Chel