Experimental Study on Effects of NaCl Solutions on Soil-Water Characteristic Curves of Expansive Soil

Xiujuan Yang, Wojciech Tomasz Sołowski, Henghui Fan, Jinqian Dang

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference contributionScientificvertaisarvioitu

Abstrakti

Soil-water characteristic curve (SWCC) is an important characteristic of unsaturated soil. This paper investigates the total suction of the MX-80 bentonite, under different saturation and different concentrations of sodium chloride solutions. To create the soil-water characteristic curves for different amounts of NaCl, but same dry densities, the study used chilled-mirror dewpoint WP4 potentiometer. The experimental results show that the concentration of salt in pore water has significant influence on the bentonite. With the increase of the NaCl concentration, the samples total suction increased gradually and the matric suction decreased. When the soil saturation was greater than 50%, the pore solution’s addition led to the rapid increase of the soil’s total suction. The
low concentration of salt has relatively little effect on the matric suction of the MX-80 bentonite; while when the ion concentration is high, the solutions’ matric suction has a very significant impact on the soil matric suction.
AlkuperäiskieliEnglanti
OtsikkoProceedings of China-Europe Conference on Geotechnical Engineering
Alaotsikko Volume 2
Sivut1328-1331
Sivumäärä4
Vuosikerta2
ISBN (elektroninen)978-3-319-97115-5
DOI - pysyväislinkit
TilaJulkaistu - 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisuussa
TapahtumaChina-Europe Conference on Geotechnical Engineering - Vienna, Itävalta
Kesto: 13 elokuuta 201816 elokuuta 2018

Julkaisusarja

NimiSpringer Series in Geomechanics and Geoengineering
ISSN (painettu)1866-8755

Conference

ConferenceChina-Europe Conference on Geotechnical Engineering
MaaItävalta
KaupunkiVienna
Ajanjakso13/08/201816/08/2018

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  • Projektit

    • 1 Päättynyt

    VYR THEBES 2018

    Sołowski, W.

    01/02/201831/12/2019

    Projekti: Other external funding: Other government funding

    Siteeraa tätä

    Yang, X., Sołowski, W. T., Fan, H., & Dang, J. (2018). Experimental Study on Effects of NaCl Solutions on Soil-Water Characteristic Curves of Expansive Soil. teoksessa Proceedings of China-Europe Conference on Geotechnical Engineering: Volume 2 (Vuosikerta 2, Sivut 1328-1331). (Springer Series in Geomechanics and Geoengineering). https://doi.org/10.1007/978-3-319-97115-5_94