| 논문명 |
반발경도법을 이용한 초고강도 콘크리트 강도추정에 관한 연구 / Study on the Strength Estimation of Ultra-High Strength Concrete Using Rebound Hardness Method |
| 저자명 |
박수화(Park, Soo-Hwa) ; 하정수(Ha, Jung-Soo) ; 임석도(Lim, Suk-Do) ; 남경용(Nam, Kyung-Yong) ; 정란(Lan, Chung) |
| 발행사 |
대한건축학회 |
| 수록사항 |
대한건축학회논문집 구조계, v.30 n.12 (2014-12) |
| 페이지 |
시작페이지(69) 총페이지(8) |
| ISSN |
12269107 |
| 주제분류 |
재료 |
| 주제어 |
비파괴시험 ; 암반용 테스트 해머 ; 슈미트 해머 ; 압축강도 ; 반발경도법//Non-destructive Test ; Rock Test Hammer ; Schmidt Hammer ; Compressive strength ; Rebound Hardness Method |
| 요약2 |
This study intended to estimate the strength of ultrahigh strength concrete by estimating the compressive strength of its mock-up using a rock test hammer and provide reference data for an intensity estimation technique for ultrahigh strength concrete in the future. According to test results, existing equations mainly used for strength estimation showed differences when the data from this test were applied. The equations appeared to underestimate the surveyed data when the compressive strength was greater than 30MPa and other equations were also far off the range of surveyed data in all strength ranges. Furthermore, the rock test hammer showed higher correlation than N-type Schmidt hammer regardless of the hitting direction and the inclusion of coarse aggregate concerning W/B type, and mortar showed a little higher correlation than concrete. The measurement of rebound of the mock-up in relation to the inclusion of coarse aggregate showed that mortar's variation coefficient and standard deviation were lower than those of concrete, and the variation coefficient decreased in proportion to the size of coarse aggregate and showed more accurate value. |
| 소장처 |
대한건축학회 |