X-ray powder diffraction" /> Il-mo Kang" /> Il-mo Kang, Suck-Chan Park, Hi-Soo Moon and Jang-Han Yoo

" /> Il-mo Kang, Suck-Chan Park, Hi-Soo Moon and Jang-Han Yoo

. Econ. Environ. Geol. 2003;36:1-8. https://doi.org/">

Econ. Environ. Geol. 2003; 36(1): 1-8

Published online February 28, 2003

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Study on expandability and X-ray coherent scattering domain size of bentonite from Gampo and Yonil area, Korea

Il-mo Kang1*, Suck-Chan Park1, Hi-Soo Moon1 and Jang-Han Yoo2

1Department of Earth System Sciences, Yonsei University, 134, Sinchon-dong, Seodaemunku, Seoul, 120-749, Korea

2Korea Institute of Geoscience and mineral Resources, Gajeong-dong 30, Daejeon, 305-350, Korea

Correspondence to :

Il-mo Kang

momo@yonsim.yonsei.ac.kr


Received: February 10, 2003; Accepted: February 24, 2003

Abstract

<p class="바탕글">This study was performed to measure expandabilities and scattering domain sizes (CSDs) of bentonite samples from Gampo and Yonil area, Korea, using X-ray powder diffraction (XRD), and to compare their experimental data with those of international standard bentonite samples (SAz-1, STx-1, and SWy-2). Most of Gampo and Yonil bentonite samples comprised randomly interstratified illite-smectite (R0 I-S), and their expandabilities ranged over 77-100%Sxrd from the saddle/001 method. The interstratification deformed 001 peaks of EG-solved samples (M?ring's first principle), which prohibited us from adopting these peaks to measure CSDs using BWA (Ber-taut-Warren-Averbach) method. CSDs of the bentonite samples with R0 I-S could be measured though Dehydration at 300?C after K-saturation,where the deformation originated from the interstratification could be removed effectively. Gampo and Yonil bentonite samples showed that their mean CSDs ranged over 3.8-5.4 interlayers, and that their CSDs distributions were similar to those of Gonzales(STx-1) and Wyoming (SWy-2) bentonite samples.

Keywords

X-ray powder diffraction, bentonite, expandability, coherent scattering domain size, illite-smectite.

Article

Econ. Environ. Geol. 2003; 36(1): 1-8

Published online February 28, 2003

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Study on expandability and X-ray coherent scattering domain size of bentonite from Gampo and Yonil area, Korea

Il-mo Kang1*, Suck-Chan Park1, Hi-Soo Moon1 and Jang-Han Yoo2

1Department of Earth System Sciences, Yonsei University, 134, Sinchon-dong, Seodaemunku, Seoul, 120-749, Korea

2Korea Institute of Geoscience and mineral Resources, Gajeong-dong 30, Daejeon, 305-350, Korea

Correspondence to:

Il-mo Kang

momo@yonsim.yonsei.ac.kr


Received: February 10, 2003; Accepted: February 24, 2003

Abstract

This study was performed to measure expandabilities and scattering domain sizes (CSDs) of bentonite samples from Gampo and Yonil area, Korea, using X-ray powder diffraction (XRD), and to compare their experimental data with those of international standard bentonite samples (SAz-1, STx-1, and SWy-2). Most of Gampo and Yonil bentonite samples comprised randomly interstratified illite-smectite (R0 I-S), and their expandabilities ranged over 77-100%Sxrd from the saddle/001 method. The interstratification deformed 001 peaks of EG-solved samples (M?ring's first principle), which prohibited us from adopting these peaks to measure CSDs using BWA (Ber-taut-Warren-Averbach) method. CSDs of the bentonite samples with R0 I-S could be measured though Dehydration at 300?C after K-saturation,where the deformation originated from the interstratification could be removed effectively. Gampo and Yonil bentonite samples showed that their mean CSDs ranged over 3.8-5.4 interlayers, and that their CSDs distributions were similar to those of Gonzales(STx-1) and Wyoming (SWy-2) bentonite samples.

Keywords

X-ray powder diffraction, bentonite, expandability, coherent scattering domain size, illite-smectite.

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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