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Extended wet sieving method for determination of complete particle size distribution of general soils

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The traditional standard wet sieving method uses steel sieves with aperture ≥0.063 mm and can only determine the particle size distribution(PSD)of gravel and sand in general soil.This paper extends the traditional method and presents an extended wet sieving method.The extended method uses both the steel sieves and the nylon filter cloth sieves.The apertures of the cloth sieves are smaller than 0.063 mm and equal 0.048 mm,0.038 mm,0.014 mm,0.012 mm,0.0063 mm,0.004 mm,0.003 mm,0.002 mm,and 0.001 mm,respectively.The extended method uses five steps to separate the general soil into many material sub-groups of gravel,sand,silt and clay with known particle size ranges.The complete PSD of the general soil is then calculated from the dry masses of the individual material sub-groups.The extended method is demonstrated with a general soil of completely decomposed granite(CDG)in Hong Kong,China.The silt and clay materials with different particle size ranges are further examined,checked and verified using stereomicroscopic observation,physical and chemical property tests.The results further confirm the correctness of the extended wet sieving method.

Particle size distribution(PSD)General soilSiltClayWet sievingPhysical and chemical properties

Shengnan Ma、Yi Song、Jiawei Liu、Xingyu Kang、Zhongqi Quentin Yue

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Department of Civil Engineering,The University of Hong Kong,Hong Kong,China

Research Grant Council of the Hong Kong Special Administrative Region,ChinaResearch Grant Council of the Hong Kong Special Administrative Region,China

Project HKU 17207518R5037-18

2024

10.1016/j.jrmge.2023.03.006

岩石力学与岩土工程学报(英文版)
中国科学院武汉岩土力学所中国岩石力学与工程学会武汉大学

岩石力学与岩土工程学报(英文版)

CSTPCD
影响因子：0.404
ISSN：1674-7755
年,卷(期)：2024.16(1)
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