Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2010.09a
- /
- Pages.392-403
- /
- 2010
Study on a methodology for estimation of void ratio of very fine clayey soil by using micro X-ray CT scan
Micro X-ray CT 촬영을 통한 세립 점성토의 간극비 추정 방법 연구
- Heo, Seong-Jun (Dept. of Civil Eng., Hongik Univ., Korea Institute of Construction Technology) ;
-
Kim, Kwang-Yeom
(Korea Institute of Construction Technology)
;
- Kwon, Young-Cheul (Dept. of Fire & Disaster Prevention, Korea Cyber University) ;
- Kim, Hong-Taek (Dept. of Civil Eng., Hongik Univ.) ;
-
Shin, Hyu-Soung
(Korea Institute of Construction Technology)
- 허성준 (홍익대학교 토목공학과, 한국건설기술연구원) ;
-
김광염
(한국건설기술연구원)
;
- 권영철 (한국사이버대학교 소방방재학과) ;
- 김홍택 (홍익대학교 공과대학 토목공학과) ;
-
신휴성
(한국건설기술연구원)
- Published : 2010.09.09
Abstract
In this study, a new methodology by using the X-ray CT scan is proposed for estimating void ratio of very fine clayey soil. Since the particle size of the clay is too fine to calculate the volume of void inside the clays, CT scanning tests with a number of clay specimens that were artificially set to have various designated void ratios have been carried out. From the tests, a relationship between the CT values and void ratios is given to be used for estimating the invisible void ratio of very fine clay from a representative CT value scanned. The linear relationship was able to be acquired finally. It is expected that micro X-ray CT scanning can be capable of capturing the void ratio of very fine soils without any errors inherent in the conventional specific gravity tests.