According to social needs, eco-friendly material for concrete structures has been developed in recent years. Hwang-toh is one of the eco-friendly architectural material and hwang-toh has been used by partial or complete replacement of portland cement. Pullout tests on deformed steel reinforcing bars with non-activated hwangtoh concrete are conducted in this paper. Experimental results, average bond strength of non-activated hwangtoh concrete was appeared to 7.3 MPa.

• 이규선(한밭대학교 건축공학과 석사과정) | Lee Kyu-Seon
• 송근호(한밭대학교 건축공학과 HAST 연구실 학부연구생) | Song Keun-Ho
• 윤익수(한밭대학교 건축공학과 HAST 연구실 학부연구생) | Yoon Ik-Su
• 김승훈(한밭대학교 건축공학과 교수) | Kim Seung-Hun 교신저자