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조효남 ( Cho Hyo-nam ),정평기 ( Jung Pyung-ki ),최현호 ( Choi Hyun-ho ),신준관 ( Shin Jun-kwan ) 한국구조물진단유지관리공학회 2002 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.6 No.1
An experimental study for the compressive strength of high strength concrete was carried out in the range of design strengths between 240kg/cm<sup>2</sup> ~ 800kg/cm<sup>2</sup> to evaluate the relationship between the destructive and non-destructive measuring. The age to check the strength had been chosen, as usual, as 28 days. The rebound hammer test and the ultrasonic pulse velocity test were performed as a non-destructive measuring methods. In this paper, the cube-formed specimens were used as a experimental applications. On the basis of the correlations analysis for the test results, some experimental equation for the compressive strength were proposed.
은충기 ( Eun Chung-ki ),이용재 ( Lee Yong-jae ),채원규 ( Chai Won-kyu ),손영현 ( Son Young-hyun ),신준관 ( Shin Jun-kwan ),정평기 ( Jung Pyung-ki ) 한국구조물진단유지관리공학회 1998 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.2 No.2
To evaluate the relationship between the destructive and non-destructive measuring methods, an experimental study for the compressive strength of concrete had been performed and the test results have been analysied. The rebound hammer test and the ultrasonic pulse velocity test was carried out as the non-destructive measuring methods. In this study, for the range of design strengths between 40MPa and 80MPa, the compressive strength test was carried out using the cubic specimen. The age to check the strength was 28 days. On the basis of the correlationship analysis for the test result, some experimental equation for the compressive strength were proposed.