Comparison between hydrometer and laser diffraction methods in the determination of clay content in fine-grained soils

A. Lopez, H. Gustavsson*, L. Korkiala-Tanttu

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliConference articleScientificvertaisarvioitu

2 Sitaatiot (Scopus)
78 Lataukset (Pure)

Abstrakti

Clay content is the main characterizing parameter when classifying fine-grained soils. Hydrometer method (HD) is commonly used in geotechnics to obtain the grain size distribution properties of fine-grained soils. However, this test is laborious and time consuming as compared to alternative methods such as laser diffraction (LD). In this study, a comparison between the results for clay content of 19 samples from different locations in Finland using HD and LD methods was carried out aiming at obtaining a mathematical expression that allows to transform LD measurements into HD results. The results were statistically compared showing significant differences between the results of these two techniques and underestimation of the clay content by the LD method was observed. Based on the results, the reliability of the laser method in the determination of clay content is discussed.

AlkuperäiskieliEnglanti
Artikkeli012012
Sivumäärä10
JulkaisuIOP Conference Series: Earth and Environmental Science
Vuosikerta710
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 26 huhtik. 2021
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaNordic Geotechnical Meeting: Urban Geotechnics - Virtual, Online, Helsinki, Suomi
Kesto: 18 tammik. 202119 tammik. 2021
Konferenssinumero: 18
https://www.ril.fi/en/events/ngm-2020.html

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