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권영웅(Kwon Young-Wung),전익찬(Jeon Ick-Chan),신정식(Shin Jung-Sik) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
This study concerns the new strength equation of concrete by Schmidt hammer test. There are not only few estimate strength equations of concrete by nondestructive test, but also many problems to apply them because of time, cost, easiness, structual damage, reliability and so on. For this study, there performed a series of nondestructive test from existing concrete structures and proposed equations as follows ; Linear : fc = 2.22r - 40.85 ( r²= 79% ) Quadratic : fc = 0.088r²- 3.47r + 46.53 (r²= 88%) here, fc : estimated compressive strength of concrete by MPa, r : Rebound index of concrete by ΔR.
권영웅 ( Kwon Young-wung ),전익찬 ( Jeon Ick-chan ),신정식 ( Shin Jung-sik ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.2
This study concerns the new strength equation of concrete by Schmidt hammer test. There are not only few estimate strength equations of concrete by nondestructive test, but also many problems to apply them because of time, cost, easiness, structual damage, reliability and so on. For this study, there performed a series of nondestructive test from existing concrete structures and proposed equations as follows ; Linear : fc = 2.22r - 40.85 ( r<sup>2</sup> = 79% ) Quadratic : fc = 0.088r<sup>2</sup> - 3.47r + 46.53 (r<sup>2</sup> = 88%) here, fc : estimated compressive strength of concrete by MPa, r : Rebound index of concrete by △R.
슈미트햄머 시험법에 의한 재령 180일이하 콘크리트의 압축강도식의 제안
권영웅 ( Kwon Young-wung ),전익찬 ( Jeon Ick-chan ),신정식 ( Shin Jeong-sik ) 한국구조물진단유지관리공학회 2003 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.7 No.1
This paper concerns the new strength equation of existing concrete structures by Schumidt hammer test. Estimated compressive strength of concrete equation are as follows; fc = 728.1 - 54.6R + 1.23R<sup>2</sup> (here, r<sup>2</sup> = 89.5%)
슈미트햄머 시험법에 의한 실존 콘크리트 구조체의 압축강도 추정식에 관한 연구
권영웅 ( Young-wung Kwon ),전익찬 ( Ick-chan Jeon ),신정식 ( Jeong-sik Shin ),이성용 ( Seong-young Lee ),오용복 ( Young-bok Oh ),최봉섭 ( Bong-sub Choi ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.2
Tins paper concerns the new strength equations of existing concrete structures by Schumidt hammer test . Estimated compressive strength of concrete equation are as follows; fc = 720-54.6R+1.2645R<sup>2</sup> (here, r<sup>2</sup> = 86.6%)
슈미트햄머 시험법에 의한 재령 180일이하 콘크리트의 압축강도식의 제안
권영웅(Kwon Young-Wung),전익찬(Jeon Ick-Chan),신정식(Shin Jeong-Sik) 한국구조물진단유지관리학회 2003 한국구조물진단학회 학술발표회논문집 Vol.- No.-
This paper concerns the new strength equation of existing concrete structures by Schumidt hammer test. Estimated compressive strength of concrete equation are as follows; fc = 728.1 - 54.6R + 1.23R² (here, r²= 89.5%)