Acknowledgement
This research was funded by the Korea Agency for Infrastructure Technology Advancement (KAIA) grant funded by the Korea government (MOLIT), grant number 22RITD-C162704-02.
Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)
- 2022.04a
- /
- Pages.45-46
- /
- 2022
Analysis of Non-Sintered Hwangto Replacement Rate in Structural Concrete on Ultrasonic Pulse Velocity
비소성 황토의 치환율에 따른 구조용 콘크리트의 초음파 속도 분석
- Published : 2022.04.20
Abstract
In this study, ultrasonic pulse velocity is compared on non-sintered hwangto concrete(NHTC) and normal concrete(NC) at ages. Strength of specimens set up 30MPa. Cement is replaced with 15 and 30% non-sintered hwangto. UPV is tested at 1, 3, 7, 28, 56, 91 days. As a result, UPV increases as the age and strength increase, but decreases as the non-sintered hwangto replacement increases. Although ultrasonic pulse velocity of NHTC was 72% lower than NC, after that, difference tends to decrease