Concrete masonry prisms are strengthened with steel fiber-reinforced mortar (SFRM) overlay and tested for compressive and diagonal tension strength. Masonry prisms are produced in poor condition considering standard workmanship for masonry buildings in Korea. Amorphous steel fibers are adopted for SFRM, and appropriate mixing ratios of SFRM are derived considering constructability and strength. Masonry prisms are strengthened with different fiber volume ratios, while numerous strengthened faces and additional reinforcing meshes are produced for compression and diagonal tension tests. Compression and diagonal tension strength are increased by up to 122% and 856%, respectively, and the enhancement effect for diagonal tension strength was superior compared to compression strength. Finally, the test results and strength prediction equations based on existing literature and regression analysis are compared.

A B S T R A C T
1. 서 론
2. SFRM 배합비 결정
    2.1 보강 재료 선정
    2.2 배합비 선정 절차
3. 실험계획
    3.1 실험체 제작
    3.2 가력 및 측정 계획
    3.3 실험변수
4. 실험결과
    4.1 강도 및 탄성계수 산정
    4.2 조적프리즘의 압축 실험결과
    4.3 조적프리즘의사인장전단 실험결과
5. 결과분석
    5.1 보강 전 조적 프리즘과 기존 설계식의 비교
    5.2 보강 후 강도 설계식과의 비교
    5.3 선형회귀분석을 통한 전단강도예측
6. 결 론
REFERENCES

• 유지훈(인천대학교 일반대학원 건축학과) | Yu Ji-Hoon (Department of Architecture, Incheon National University)
• 명성진(인천대학교 일반대학원 건축학과) | Myeong Seong-Jin (Department of Architecture, Incheon National University)
• 박지훈(인천대학교 도시건축학부) | Park Ji-Hun (Division of Architecture and Urban Design, Incheon National University) Corresponding author