In this study, the shear strength according to the width of the web was assessed by using the Waste styrofoam as hollow material without reprocessing. The concrete's design strength was set to 24MPa and the web width was 50mm, 100mm, and 150mm as variables. Shear strengths of KCI increased from 111.2% to 203.9%.

Abstract
 1. 서 론
 2. 실험계획 및 방법
 3. 실험결과 및 고찰
 4. 결 론
 참고문헌

• 정재원(한밭대학교 건축공학과) | Jeong Jae-won
• 한준희(한밭대학교 건축공학과) | Han June-Hee
• 김승훈(한밭대학교 건축공학과) | Kim Seung-Hun 교신저자