Infiltration characteristics of chemically-treated water-repellent kaolin

Youngmin Choi; Sanghyeong Lim; Tae Sup Yun; Woojin Lee; Changho Lee

doi:10.1061/9780784480472.077

Infiltration characteristics of chemically-treated water-repellent kaolin

Youngmin Choi, Sanghyeong Lim, Tae Sup Yun, Woojin Lee, Changho Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Degree of water repellency significantly influences the infiltration behavior of water-repellent soils. In this study, the chemically treated water-repellent kaolin clays with different concentrations (C_O) of an organosilane solution are examined to explore the effect of water repellency on its infiltration characteristics. Experimental results show that the soil-water contact angle tends to increase with increasing C_O until C_O = 5%, and then shows an almost constant value with increasing C_O. The water infiltration time (WIT) results show that water infiltration resistance is significantly improved by organosilane treatment (CO ≥ 5%) under low hydrostatic pressure (WP). However, as the hydrostatic pressure increases, WIT is converged (C_O = 5%) or exacerbated (C_O = 10% and 20%) to the WIT of untreated clay. The different behaviors of infiltration are discussed in terms of wetting patterns. The findings can be used to improve a conventional hydraulic barrier system.

Original language	English
Title of host publication	Geotechnical Special Publication
Editors	Thomas L. Brandon, Richard J. Valentine
Publisher	American Society of Civil Engineers (ASCE)
Pages	730-735
Number of pages	6
Edition	GSP 280
ISBN (Electronic)	9780784480434
DOIs	https://doi.org/10.1061/9780784480472.077
Publication status	Published - 2017
Event	Geotechnical Frontiers 2017 - Orlando, United States Duration: 2017 Mar 12 → 2017 Mar 15

Publication series

Name	Geotechnical Special Publication
Number	GSP 280
Volume	0
ISSN (Print)	0895-0563

Conference

Conference	Geotechnical Frontiers 2017
Country/Territory	United States
City	Orlando
Period	17/3/12 → 17/3/15

Bibliographical note

Funding Information:
This research was supported by a grant (16-RDRP-B076564-03) from the Regional Development Research Program funded by the Korean Ministry of Land, Infrastructure, and Transport and by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (NRF-2015R1A2A2A01006337).

Publisher Copyright:
© ASCE.

ASJC Scopus subject areas

Civil and Structural Engineering
Architecture
Building and Construction
Geotechnical Engineering and Engineering Geology

Access to Document

10.1061/9780784480472.077

Cite this

Choi, Y., Lim, S., Yun, T. S., Lee, W., & Lee, C. (2017). Infiltration characteristics of chemically-treated water-repellent kaolin. In T. L. Brandon, & R. J. Valentine (Eds.), Geotechnical Special Publication (GSP 280 ed., pp. 730-735). (Geotechnical Special Publication; Vol. 0, No. GSP 280). American Society of Civil Engineers (ASCE). https://doi.org/10.1061/9780784480472.077

Infiltration characteristics of chemically-treated water-repellent kaolin. / Choi, Youngmin; Lim, Sanghyeong; Yun, Tae Sup et al.
Geotechnical Special Publication. ed. / Thomas L. Brandon; Richard J. Valentine. GSP 280. ed. American Society of Civil Engineers (ASCE), 2017. p. 730-735 (Geotechnical Special Publication; Vol. 0, No. GSP 280).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Choi, Y, Lim, S, Yun, TS, Lee, W & Lee, C 2017, Infiltration characteristics of chemically-treated water-repellent kaolin. in TL Brandon & RJ Valentine (eds), Geotechnical Special Publication. GSP 280 edn, Geotechnical Special Publication, no. GSP 280, vol. 0, American Society of Civil Engineers (ASCE), pp. 730-735, Geotechnical Frontiers 2017, Orlando, United States, 17/3/12. https://doi.org/10.1061/9780784480472.077

@inproceedings{2fbca72cc56f46efb4e943c4ac8d2950,

title = "Infiltration characteristics of chemically-treated water-repellent kaolin",

abstract = "Degree of water repellency significantly influences the infiltration behavior of water-repellent soils. In this study, the chemically treated water-repellent kaolin clays with different concentrations (CO) of an organosilane solution are examined to explore the effect of water repellency on its infiltration characteristics. Experimental results show that the soil-water contact angle tends to increase with increasing CO until CO = 5%, and then shows an almost constant value with increasing CO. The water infiltration time (WIT) results show that water infiltration resistance is significantly improved by organosilane treatment (CO ≥ 5%) under low hydrostatic pressure (WP). However, as the hydrostatic pressure increases, WIT is converged (CO = 5%) or exacerbated (CO = 10% and 20%) to the WIT of untreated clay. The different behaviors of infiltration are discussed in terms of wetting patterns. The findings can be used to improve a conventional hydraulic barrier system.",

author = "Youngmin Choi and Sanghyeong Lim and Yun, {Tae Sup} and Woojin Lee and Changho Lee",

note = "Funding Information: This research was supported by a grant (16-RDRP-B076564-03) from the Regional Development Research Program funded by the Korean Ministry of Land, Infrastructure, and Transport and by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (NRF-2015R1A2A2A01006337). Publisher Copyright: {\textcopyright} ASCE.; Geotechnical Frontiers 2017 ; Conference date: 12-03-2017 Through 15-03-2017",

year = "2017",

doi = "10.1061/9780784480472.077",

language = "English",

series = "Geotechnical Special Publication",

publisher = "American Society of Civil Engineers (ASCE)",

number = "GSP 280",

pages = "730--735",

editor = "Brandon, {Thomas L.} and Valentine, {Richard J.}",

booktitle = "Geotechnical Special Publication",

edition = "GSP 280",

}

TY - GEN

T1 - Infiltration characteristics of chemically-treated water-repellent kaolin

AU - Choi, Youngmin

AU - Lim, Sanghyeong

AU - Yun, Tae Sup

AU - Lee, Woojin

AU - Lee, Changho

N1 - Funding Information: This research was supported by a grant (16-RDRP-B076564-03) from the Regional Development Research Program funded by the Korean Ministry of Land, Infrastructure, and Transport and by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) (NRF-2015R1A2A2A01006337). Publisher Copyright: © ASCE.

PY - 2017

Y1 - 2017

N2 - Degree of water repellency significantly influences the infiltration behavior of water-repellent soils. In this study, the chemically treated water-repellent kaolin clays with different concentrations (CO) of an organosilane solution are examined to explore the effect of water repellency on its infiltration characteristics. Experimental results show that the soil-water contact angle tends to increase with increasing CO until CO = 5%, and then shows an almost constant value with increasing CO. The water infiltration time (WIT) results show that water infiltration resistance is significantly improved by organosilane treatment (CO ≥ 5%) under low hydrostatic pressure (WP). However, as the hydrostatic pressure increases, WIT is converged (CO = 5%) or exacerbated (CO = 10% and 20%) to the WIT of untreated clay. The different behaviors of infiltration are discussed in terms of wetting patterns. The findings can be used to improve a conventional hydraulic barrier system.

AB - Degree of water repellency significantly influences the infiltration behavior of water-repellent soils. In this study, the chemically treated water-repellent kaolin clays with different concentrations (CO) of an organosilane solution are examined to explore the effect of water repellency on its infiltration characteristics. Experimental results show that the soil-water contact angle tends to increase with increasing CO until CO = 5%, and then shows an almost constant value with increasing CO. The water infiltration time (WIT) results show that water infiltration resistance is significantly improved by organosilane treatment (CO ≥ 5%) under low hydrostatic pressure (WP). However, as the hydrostatic pressure increases, WIT is converged (CO = 5%) or exacerbated (CO = 10% and 20%) to the WIT of untreated clay. The different behaviors of infiltration are discussed in terms of wetting patterns. The findings can be used to improve a conventional hydraulic barrier system.

UR - http://www.scopus.com/inward/record.url?scp=85018753488&partnerID=8YFLogxK

U2 - 10.1061/9780784480472.077

DO - 10.1061/9780784480472.077

M3 - Conference contribution

AN - SCOPUS:85018753488

T3 - Geotechnical Special Publication

SP - 730

EP - 735

BT - Geotechnical Special Publication

A2 - Brandon, Thomas L.

A2 - Valentine, Richard J.

PB - American Society of Civil Engineers (ASCE)

T2 - Geotechnical Frontiers 2017

Y2 - 12 March 2017 through 15 March 2017

ER -

Infiltration characteristics of chemically-treated water-repellent kaolin

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this