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The amount of fine material available in the soil is significant in Atterberg limits and methylene blue tests. In the context of Atterberg limits, increased amount of clay minerals contained in the soil increases liquid and plastic limit values; however, increasing sand content reduces the moisture content reducing the water retention capacity of the soil which in return reduces the plasticity index PI value. In the case of methylene blue test, which is used to specify the quality of the amount of fine material, existence of clay in the medium increases the pollution level of the sand and the amount of methylene solution V1 used. In this study, soil classes were determined and pollution rates were identified with Atterberg limits, pycnometer, sieve analysis, hydrometer analysis and methylene blue tests conducted on 11 different natural soil samples collected from different regions. From the data obtained, first the relationship between PI and methylene blue MB was examined and was evaluated according to the results of the -single regression- method. Furthermore, the other coefficient of uniformity Cu, coefficient of graduation Cc, unit weight of soils γs parameters obtained from experimental studies were also subjected to -multiple regression analysis- in order to reveal their impact on the MB and this impact was confirmed taking both statistical analyses into account.

KEYWORDS

Atterberg Limits, Sieve and Hydrometer Analysis, Pycnometer Test, Plasticity Index, Methylene Solution Amount V1

Cite this paper

Otçu, N. , Uzundurukan, S. and Kaplan, G. 2017 Determination of the Plasticity Index of Soils with Fine-Grained Soils Using Methylene Blue Test. Journal of Geoscience and Environment Protection, 5, 165-181. doi: 10.4236-gep.2017.53012.





Autor: Nermin Ünver Otçu1*, Soner Uzundurukan2, Gökhan Kaplan3

Fuente: http://www.scirp.org/



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