Effect of hydrometer type on particle size distribution of fine grained soil

Based on the taking sample by geological drilling, combined with the fractal principle, analysis on the cracked backfill particle size of its fractal features and strength correlation. Even each backfill sand specimen particle size is difference, but calculation data shows that the particle size of each sand specimen has preferable fractal feature, the sand specimen particle size distribution has remarkable fractal structure by the linear fitted results of the sand specimens. The fractal relationship of strength and particle size distribution shows that with the increased of fractal dimension, the strength of backfill is decreased, that is to say there is negative correlation, the main cause is that the higher parameter D of the fractal dimension, the higher fine-grained content and more non-uniform of the particle size distribution, especially for the thinner full tailings, if properly increasing the content of slightly crude particles, the strength of backfill will be certainly improved to some extent.

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Relationships between particle size, fabric and other factors in some Australian soils

Soil Research ◽

10.1071/sr9790029 ◽

1979 ◽

Vol 17 (1) ◽

pp. 29 ◽

Cited By ~ 17

Author(s):

R Brewer

Keyword(s):

Particle Size ◽

Organic Matter ◽

Particle Size Distribution ◽

Size Distribution ◽

Thin Sections ◽

Fine Grained ◽

Related Distribution

Soil fabrics at the level of related distribution of f-matrix (usually finer material) to f-members (usually coarser units) are considered in relation to particle size distribution for a number of randomly selected Australian profiles. Three major fabric continua are recognized: the chlamydic iunctic and matrigranic sequences. The majority of samples in the first two sequences have ratios of clay to silt greater and less than one, respectively, and successive stages correlate with increasing proportions of silt plus clay; fabrics of samples that fall out of sequence in relation to percentage of silt plus clay are explained on the basis of composition and/or specific processes, especially fine-grained carbonates, organic matter, faunal activity, and illuviation. The matrigranic sequence does not correlate with particle size distribution, but seems to be related to composition and/or specific processes such as faunal activity. The usefulness of the results lies in the possibility of using the conclusions to reduce the number of thin sections required to characterize areas of soil, particularly within restricted areas.

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Investigation of the Particle Shape and the Particle Size Distribution of Fine Bulk Solids by the Example of the Shale Cyclone Ash

KnE Materials Science ◽

10.18502/kms.v2i2.960 ◽

2017 ◽

Vol 2 (2) ◽

pp. 141

Author(s):

V.Y. Putilov ◽

I.V. Putilova ◽

D. Kaminska

Keyword(s):

Particle Size ◽

Particle Size Distribution ◽

Size Distribution ◽

Particle Shape ◽

Two Dimensional ◽

Pneumatic Conveying ◽

Fine Grained ◽

Bulk Solids ◽

Shale Ash ◽

Shape Of Particles

<p class="TTPAbstract">The article contains brief information on pneumatic conveying of fine-grained polydisperse bulk solids, as well as on the shape of particles. A method for measuring the particle shape developed by Kamika company is described. The determinations of the particle shape as well as the particle size distribution of the shale ash sample using a two-dimensional IPS UA Kamika particle size distribution analyzer are presented.</p>

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