The heavyweight industrial waste was used as concrete ingredient instead of natural aggregate, however, design standard did not consider effects of heavyweight aggregate on flexural strength. Therefore, in this paper, correlation between compressive and flexural strength of concrete using industrial was compared. From the results, compressive strength and flexural strength decreased with industrial waste increasing. And, it was shown that the test results of flexural strength were higher than the predicted value from design standard.

Abstract
 1. 서 론
 2. 실험변수 및 방법
 3. 실험결과
 4. 결 론

• 최소영(강릉원주대학교 토목공학과) | Choi So-Yeong
• 김일순(강릉원주대학교 토목공학과) | Kim Il-Sun
• 이원준(강릉원주대학교 토목공학과) | Lee Won Jun
• 이찬규(강릉원주대학교 토목공학과) | Lee Chan kyu
• 양은익(강릉원주대학교 토목공학과) | Yang Eun-Ik 교신저자