Evaluation of Compressive Strength of Concrete Using Aggregate of Basalt by Schmidt Hammer Testing

현무암골재를 사용한 콘크리트의 슈미트 햄머법 비파괴 시험에 의한 강도 평가

The objective of this study is to compare compressive strength and rebound number of Schmidt hammer of concrete using basalt aggregate to that using granite aggregate. And is to provide the reference data on the standardization of nondestructive test of concrete. According to test results, compressive strength of concrete using basalt aggregate is highly estimated under the same rebound number compared to that using granite aggregate about 5~15%. It is urgently that newly suggested estimation formula of compressive strength using basalt aggregate must be prescribed because estimation formula of compressive strength of concrete using basalt aggregates overestimates the strength compared to that using granite aggregate.