The purpose of this paper is to evaluate bond capacity of steel fiber reinforced concrete. Test variables were compressive strength of concrete and steel bar diameter and a total of six specimens in order to examine the discrepancy in bond resistance due to each variable. The specimens were tested by using universal testing machine in displacement control mode. From the test results, it can be seen that the bond strength increased with increasing diameter of steel bar for the same compressive strength of concrete. Also, the higher strength concrete is, the higher bond strength can be found in the test. Significant slip resistance inducing greater bond strength can be observed in the specimens with large diameter steel bar. All the specimens failed in splitting failure after its maximum load and compressive stress of concrete predominated in bond capacity.

• 김승훈(한밭대학교 건축공학과 부교수, 공학박사) | Kim, Seung Hun 교신저자
• 이규선(한밭대학교 건축공학과 일반대학원 석사과정) | Lee, Kyu Seon