Journal of the Korea institute for structural maintenance and inspection (한국구조물진단유지관리공학회 논문집)
- Volume 6 Issue 4
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- Pages.91-98
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- 2002
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- 2234-6937(pISSN)
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- 2287-6979(eISSN)
Development of Compressive Strength Estimation Equation for Concrete Mixed with Granite Aggregates
화강암골재를 사용한 콘크리트의 강도추정식 개발
- Received : 2002.04.22
- Published : 2002.10.31
Abstract
Prediction for the compressive strength of concrete by non-destructive tests(NDT) has a tendency to show different outcomes according to various aggregates. The purpose of this study is to develop estimation equation by rebound number, ultrasonic velocity and combined method at concrete structures which used granite as coarse aggregates. The test variable is water/cement ratio(41.1%, 48.6%, 67.6%), curing method(moisture condition, dry condition) and age(7, 14, 28, 56). According to the test variable, new equation was suggested, and compared with the existing equations.